asc z223/nfpa 54

ASC Z223 NFPA 54

COMMITTEE ON NATIONAL FUEL GAS CODE

ASC Z223/NFPA 54 Secretary

Paul Cabot American Gas Association 400 N. Capitol Street, N.W. Washington, DC, 20001

Tel.: 202.824.7312 Email: [email protected] Fax: 202.824.9122

DATE: October 5, 2012

TO: Members, National Fuel Gas Code Committee, ASC Z223/NFPA 54

FROM: Thomas Crane, Chairman

SUBJECT: Committee Meeting Agenda/Materials – October 16-18, 2012

Enclosed are the agenda/materials for the National Fuel Gas Code Committee meeting on

October 16-18 in Palm Springs, California. Supporting materials submitted with public input are

not included in the enclosed materials but can be obtained by using the link provide on the

committee webpage hosted at www.aga.org.

The meeting’s main purpose is to take action on each public input item and to develop committee

revisions for incorporation into the first public review document of the 2015 National Fuel Gas

Code. The general procedure will be to review each public input item in chapter and section

sequence starting with Chapter 1. Chapter 3 definitions associated with later code revisions will

be held until the main revision is discussed. Advisory panel generated revisions already drafted

will be considered in sequence with the public input. Other committee revisions will be

discussed at Chair’s discretion.

Another major issue for the committee is to respond to the NFPA Standard Council’s March 3,

2010, decision regarding CSST (see page 263). The committee will be presented with the results

of an AHRI sponsored research project addressing bonding concerns. The presentation, a

meeting of the CSST Task Group, and committee review of CSST public input, will be the first

order of business after general administrative agenda items.

Please contact Paul Cabot with any questions or comments you may have at 202.824.7312 or

[email protected].

I look forward to seeing you in Palm Springs.

Enclosures: Agenda/Materials

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http://www.aga.org/

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Advisory Panel on Venting NATIONAL FUEL GAS CODE COMMITTEE

ASC Z223 NFPA 54

October 16 -18, 2012

Hilton Palm Springs

Palm Springs, CA

Thomas Crane – Chair

Paul Cabot – Secretary

Denise Beach – NFPA Staff

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ASC Z223 NFPA 54 COMMITTEE ON NATIONAL FUEL GAS CODE

TABLE OF CONTENTS

ASC Z223 / NFPA 54 National Fuel Gas Code Committee

Hilton Palm Springs Palm Springs, CA

October 16-18, 2012 TAB 1 – Registration List ............................................................................................................. 7 TAB 2 – Agenda ............................................................................................................................11 TAB 3 – Announcements ............................................................................................................. 15 TAB 4 – ASC Z223 Committee Balance & Roster ..................................................................... 21

TAB 5 – NFPA 54 Committee Roster ......................................................................................... 47 TAB 6 – 11/11 Full Committee & 9/12 Panel Minutes .............................................................. 55 TAB 7 – Future Meeting Schedule .............................................................................................. 121 TAB 8 – Public Input & Committee Input................................................................................. 127 TAB 9 – Possible Projects/Initiatives .......................................................................................... 257 TAB 10 – CSST Discussion Materials ........................................................................................ 261

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____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________

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10/05/2012 1--National Fuel Gas Code Committee Meeting (October 2012)--

ABERNATHY, Stephen V. PE (Steve)

Manager - CNG Design & Construction

Piedmont Natural Gas Company, Inc.

PO Box 16087

Greenville SC 29606

Tel: (864)286-7911

Fax: (864)233-6104

Email: [email protected]

AGUILAR, Hugo

Mechanical Code Administrator

International Association Of Plumbing And

Mechanic

4755 East Philadelphia Street

Ontario CA 91761-2816

Tel: (909)472-4111

Fax: (909)472-4160


BEACH, Denise

Senior Engineer

National Fire Protection Association

1 Batterymarch Park

Quincy MA 02169-7471

Tel: (617)984-7501

Fax: (617)984-7110


BERNING, David T.

Manager, Certification-Standard &

Technical Literature

A.O. Smith Water Products

25731 Hwy.

McBee SC 29101-9304

Tel: (843)335-8281

Fax: (843)355-6603


BUECHLER, Todd

AMC Fairmont Specialty Insurance

224 Hillcrest Drive

Genesco IL 61254

Tel: (309)838-3231

Fax: (877)622-6115


BUUCK, Dan

Program Manager

National Association of Home Builders

1201 15th Street, N.W

Washington DC 20005

Tel: (202)266-8366

Fax: (202)266-8369


CABOT, Paul W.

Administrator, National Fuel Gas Code

American Gas Association

400 North Capitol Street, NW

4th Floor

Washington DC 20001-0000

Tel: (202)824-7312

Fax: (202)824-9122


CAUDLE, Sylvester R. (Ron)

Market Advisor

Southern California Gas Company

555 W. Fifth Street, M.L. 28A4

Anaheim

Los Angeles CA 90013-0000

Tel: (213)244-4361

Fax: (213)244-8252


CAVANAUGH, Sidney L.

Codes & Standards Professional

Cavanaugh Consulting

1010 Bishops Lodge Road

Santa Fe NM 87501

Tel: (800)719-9989

Fax: (505)474-3729


CRANE, Thomas R. PE (Tom Crane)

President

Crane Engineering

2355 Polaris Lane North

Plymouth MN 55447-0000

Tel: (763)557-9090

Fax: (763)557-0710


EDGAR, Glen A.

VP - Research & Development

Selkirk Corp.

5030 Corporate Exchange Blvd SE

Grand Rapids MI 49512

Tel: (616)656-8206

Fax: (616)656-6397


EDLER, David

Senior Product Engineer

Ward Manufacturing, Inc

117 Gulick St.

Blossburg PA 16912

Tel: (570)368-2131


FEEHAN, Pennie L.

Feehan Consulting

611 S. Palm Canyon Drive

Suite #7445

Palm Springs CA 92264-7453


FOSSA, Alberto J.

Director

MDJ Consultores Associados Ltda

Av. Vereador Jose Diniz,

3720 - conj. 707

Campo Belo-Sao Paulo SP0460400

BRAZIL

Tel: 551155317654

Fax: 551155358660


GUTHRIE, Mitchell

NFPA 780

234 Guthrie Rd

Blanch NC 27212

Tel: (336)514-3254

Fax: (336)694-5224


HAGENSEN, Steen

President

ENERVEX Inc.

1685 Bluegrass Lakes Parkway

Alpharetta GA 30004

Tel: (770)587-3238

Fax: (770)587-4731


HARRIS, Mark

Manager Business Development

Titeflex Corp./Gastite Division

1116 Vaughn Parkway

Portland TN 37148

Tel: (615)325-1103


HOLMES, Peter

Senior Inspector

Maine Fuel Board

Dept. of Professional

& Financial Regulation

35 State House Station

Augusta ME 04333-0035

Tel: (207)446-2826

Fax: (207)624-8636


JOHNSON, Reginald

Manager, Technical Services

Alagasco

605 Richard Arrington Jr Boulevard North

Birmingham AL 35203-2784

Tel: (205)326-1818

Fax: (205)326-8483


KORY, John Edward (John Kory)

Technical Advisor

CSA Group

8501 East Pleasant Valley Road

Independence OH 44130

Tel: (216)524-4990

Fax: (216)642-3463


LEMOFF, Theodore C. (Ted)

Consultant

7456 Jacaranda Park Road

Unit #103

Naples FL 34109

Tel: (617)308-0159


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10/05/2012 2--National Fuel Gas Code Committee Meeting (October 2012)--

MOLLOY, James

VP Business Development

Centrotherm Eco Systems

75 Champlain St

Albany NY 12204

Tel: (518)434-3400

Fax: (518)618-3166


OSTERHAUS, James T.

Deputy Director, Safety Division

Railroad Commission of Texas

P. O. Box 12967

Austin TX 78711-0000

Tel: (512)463-6692

Fax: (512)463-7319


PAPAGEORGE, Andrea L.

Manager, Codes & Standards

AGL Resources

Ten Peachtree Place, 17th Floor

Atlanta GA 30309-0000

Tel: (404)584-3756

Fax: (404)584-4807


RANFONE, James A. (Jim)

Managing Director, Codes & Standards

American Gas Association

400 North Capitol Street, NW

4th Floor

Washington DC 20001-1511

Tel: (202)824-7310

Fax: (202)824-9120


RIBBS, Phillip H.

Principal

PHR Consultants

206 Cypress Park

Santa Cruz CA 95060

Tel: (831)459-6969


SCANLON, Jack

Engineering Manager

Rheem Manufacturing Company

2600 Gunter Park Drive, East

Montgomery AL 36109-1413

Tel: (334)213-3776

Fax: (334)260-1350


STANONIK, Frank A.

Chief Technical Advisor

Air-Conditioning, Heating and

Refrigeration Institute

2111 Wilson Blvd., Suite 500

Arlington VA 22201-3008

Tel: (703)524-8800

Fax: (703)528-3816


STROUD, Thomas R.

Sr. Manager, Codes & Standards

Hearth, Patio & Barbecue Association

Pacific NW Office

4606 SW Trenton

Seattle WA 98136

Tel: (703)522-0086

Fax: (703)522-0048


SWIECICKI, Bruce J. PE

Senior Technical Advisor

National Propane Gas Association

21200 S. LaGrange Road

#353

Frankfort IL 60423-0000

Tel: (815)806-9035

Fax: (815)806-9036


SWITZER, Franklin Jr.

President

S-afe, Inc.

2405 West Sacramento Drive

Muncie IN 47303-9002

Tel: (765)284-8164

Fax: (765)216-0979


TORBIN, Robert PE (Bob)

Principal Engineer

Cutting Edge Solutions LLC

70 Flanagan Drive

Framingham MA 01701-3774

Tel: (508)877-9239

Fax: (508)877-9239


VOLGSTADT, Frank R.

President

Volgstadt & Associates

6133 Shore Drive

Madison OH 44057-1943

Tel: (440)428-0827

Fax: (440)428-0827


WILBER, Matt

Gas and Mechanical Systems Specialist

Crane Engineering

2355 Polaris Lane N.

Suite 120

Plymouth MN 55447-0000

Tel: (763)557-9090

Fax: (763)557-0710


WOZNIAK, Robert

Principal Engineer

UL LLC

PDE Department - 3615CSNK

1285 Walt Whitman Road

Melville NY 11747-0000

Tel: (631)546-2454

Fax: (631)439-6449


YAPCHANYK, Stephen M. (Steve)

Senior Engineer

Consolidated Edison Company of New

York, Inc.

1615 Bronxdale Avenue

Bldg. 21A-2nd Floor

Bronx NY 10462

Tel: (718)839-1830

Fax: (718)904-4500


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____________________________________________________________________________ Agenda - page 13______________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________

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ASC Z223 NFPA 54


10/04/12

AGENDA

ASC Z223 / NFPA 54

National Fuel Gas Code Committee

Hilton Palm Springs Resort

Palm Springs, CA

October 16-18, 2012

Tuesday, October 16, 2012

8:00 a.m. – 9:00 a.m. ........ Continental Breakfast

9:00 a.m. – 5:00 p.m. ........ Committee Discussions (order may be revised)

1. Call to Order, Self-Introductions, Sign-in Sheet

2. Adoption of Agenda – Changes / Additions

3. Announcements: Antitrust Guidelines and Fire Exits and Alarm

4. Membership Review

a. ASC Z223 Committee Updates - Roster Review, Balance & New Member

Election

b. NFPA 54 Committee Updates – Roster Review

5. Approval of Committee Meeting Minutes – 11/11 Full & 9/12 Panels

6. Future Meeting Schedule & Need for Advisory Panel Meetings

7. NFPA Revised Process Presentation

8. CSST – AHRI Research Presentation

a. 10:30 a.m. – 12:00 noon (Approximate) - NFPA 54 CSST Task Group Meeting

b. CSST – Committee discussions:

i. Task Group Recommendations

ii. Code Requirements and Possible Revisions

iii. Response to NFPA Standards Council

9. Consideration of Public Input and Committee Input

6:00 p.m. – 7:30 p.m. ........ Reception Sponsored by AGA

Wednesday, October 17, 2012 8:00 a.m. – 9:00 a.m. ........ Continental Breakfast

9:00 a.m. – 5:00 p.m. ........ Committee Discussions

9. Continued. – Consideration of Public Input and Committee Input

Thursday, October 18, 2012 8:00 a.m. – 9:00 a.m. ........ Continental Breakfast

9:00 a.m. – 12:00 p.m. ...... Committee Discussions

9. Continued. – Consideration of Public Input and Committee Input

10. New Business

11. Adjourn

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____________________________________________________________________________ 1. Fire Alarms and Exits - page 17________________________________________________ 2. AGA AntiTrust Guidelines - page 19____________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________

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Fire Alarms and Exits

In the event of an emergency, hotel guests will be notified via alarm and/or loudspeaker whether the hotel should be evacuated. Please make yourself aware of the closet emergency exit.

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AMERICAN GAS ASSOCIATION

ANTITRUST COMPLIANCE GUIDELINES

Introduction The American Gas Association and its member companies are committed to full compliance with all laws and regulations, and to maintaining the highest ethical standards in the way we conduct our operations and activities. Our commitment includes strict compliance with federal and state antitrust laws, which are designed to protect this country’s free competitive economy. Responsibility for Antitrust Compliance Compliance with the antitrust laws is a serious business. Antitrust violations may result in heavy fines for corporations, and in fines and even imprisonment for individuals. While the General Counsel’s Office provides guidance on antitrust

matters, you bear the ultimate responsibility for assuring that your actions and the actions of any of those under your direction comply with the antitrust laws. Antitrust Guidelines In all AGA operations and activities, you must avoid any discussions or conduct that might violate the antitrust laws or even raise an appearance of impropriety. The following guidelines will help you do that: Do consult counsel about any documents that

touch on sensitive antitrust subjects such as pricing, market allocations, refusals to deal with any company, and the like.

Do consult with counsel on any non-routine

correspondence that requests an AGA member company to participate in projects or programs, submit data for such activities, or otherwise join other member companies in AGA actions.

Do use an agenda and take accurate minutes

at every meeting. Have counsel review the agenda and minutes before they are put into final form and circulated and request counsel to attend meetings where sensitive antitrust subjects may arise.

Do provide these guidelines to all meeting

participants.

Do not, without prior review by counsel, have discussions with other member companies about:

your company’s prices for products, assets

or services, or prices charged by your competitors

costs, discounts, terms of sale, profit margins or anything else that might affect those prices

the resale prices your customers should

charge for products or assets you sell them

allocating markets, customers, territories

products or assets with your competitors limiting production whether or not to deal with any other

company

any competitively sensitive information concerning your own company or a competitor’s.

Do not stay at a meeting, or any other gathering, if those kinds of discussions are taking place.

Do not discuss any other sensitive antitrust

subjects (such as price discrimination, reciprocal dealing, or exclusive dealing agreements) without first consulting counsel.

Do not create any documents or other records that might be misinterpreted to suggest that AGA condones or is involved in anticompetitive behavior.

We’re Here to Help Whenever you have any question about whether particular AGA activities might raise antitrust concerns, contact the General Counsel’s Office,

Ph: (202) 824-7072; E-mail: [email protected], or your legal counsel.

American Gas Association Office of General Counsel

Issued: December 1997 Revised: December 2008

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mailto:[email protected]

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____________________________________________________________________________ 1. ASC Z223 Roster - page 23____________________________________________________ 2. Balance Evaluation - page 36__________________________________________________ 3. Membership Ballot and Evaulation - Switzer - page 39______________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________

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ROSTER 10/03/12

ANSI Accredited Standards Committee on National Fuel Gas Code Z

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ASC Z223 Secretariat American Gas Association 400 North Capitol Street NW Washington, DC 20001

Paul Cabot Phone: 202.824.7312 Fax: 202.824.9122 Email: [email protected]

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ACCREDITED STANDARDS COMMITTEE ON

NATIONAL FUEL GAS CODE, Z223

SCOPE: Development of a safety code for gas piping systems on consumers’ premises and the

installation of gas utilization equipment and accessories for use with fuel gases such as natural

gas, manufactured gas, liquefied petroleum gas in the vapor phase, liquefied petroleum gas-air

mixtures, or mixtures of these gases, including:

a. The design, fabrication, installation, testing, operation and maintenance of gas piping systems

from the point of delivery to the connections with each gas utilization device. Piping systems

covered by this code are limited to a maximum operating pressure of 125 psig. For purposes

of this code, the point of delivery is defined as the outlet of the meter set assembly or the

outlet of the service regulator or service shutoff valve where no meter is provided.

b. The installation of gas utilization equipment, related accessories, and their combustion air

and venting systems.

CHAIRMAN: Thomas Crane

ADMINISTRATIVE SECRETARIAT: Paul Cabot

NFPA LIAISON: Denise Beach

Year

Appointed Name and Company Membership

Category Term

Expiration Date

Air-Conditioning, Heating and Refrigeration Institute 2009 DAVID T. BERNING

Manager, Certification-Standard & Technical Literature Product Design Engineering A.O. Smith Water Products Co. 25731 Highway 1 McBee, SC 29101-9304 843.335.8281 ext. 373 Fax: 843.335.6603 [email protected]

M 06/30/15

1994 GLEN EDGAR Director, R&D - Venting Products Selkirk, LLC State Route 93N & Sutton Road P.O. Box 631 Logan, OH 43138 740.385.5666 x203 Fax: 740.385.2483 [email protected]

M 06/30/15

24

2

2009 EARL RIGHTMIER Manager, Product Engineering AERCO International, Inc. 159 Paris Ave. Northvale, NJ 07647-2095 201.768.2400 [email protected]

M 06/30/12

2011 JACK SCANLON Engineering Manager Rheem Manufacturing Company Development Support and Engineering Services 2600 Gunter Park Drive, East Montgomery, AL 36109-1413 334.213.3776 [email protected]

M 6/30/15

Vacancy

American Gas Association 2006 RONNIE RAY FRAZIER

Codes & Standards Manager Atmos Energy Corporation 5420 LBJ Freeway, Suite 1879C Dallas, TX 75240 214.206.2814 Fax: 214.206.2136 [email protected]

ES 06/30/13

2007 ANDREA L. PAPAGEORGE Manager, Codes and Standards AGL Resources, Inc. Ten Peachtree Place, 17th Floor Atlanta, GA 30309 404.584.3756 Fax: 404.584.4807 [email protected]

ES 06/30/15

2009 JOSEPH “MIKE” ROMANO Manager Technical Applications TECO Peoples Gas 1920 9th Avenue North St. Petersburg, FL 33713 727.826.3280 Fax: 727.826.3296 [email protected]

ES 06/30/15

25

3

2007 STEPHEN M. YAPCHANYK, PE Senior Engineer Consolidated Edison Company of New York, Inc. 1615 Bronxdale Avenue Bldg. 21A Bronx, NY 10462-3301 718.839.1830 Fax: 718.904.4595 [email protected]

ES 06/30/13

Alternate 1 STEPHEN V. ABERNATHY, PE Manager - CNG Design & Construction Piedmont Natural Gas Company, Inc. PO Box 16087 Greenville, SC 29606 864.286.7911 Fax: 864.233.6104 [email protected]

ES 06/30/15

Alternate 2 GERALD G. DAVIS Supervisor Washington Gas Light Company 4000 Forestville Road Forestville, MD 20747 202.624.6367 Fax: 202. 624.6223 [email protected]

ES 06/30/15

American Public Gas Association 2004 MIKE DEEGAN

South Area Service Manager Clearwater Gas System 400 N. Myrtle Avenue Clearwater, FL 33755-4433 727.562.4900 ext: 7439 Fax: 727.562.4907 [email protected]

ES None

Association of Home Appliance Manufacturers 2008 PETE HOEKSTRA

AHAM Technical Consultant Association of Home Appliance Manufacturers 400 Cameron Station Blvd, #226 Alexandria, VA 22304 703.888.2838 [email protected]

M None

26

4

Asociacion Mexicana de Distribuidores de Gas Lp 1996 PATRICIO HIMES RADKE

Sistemas De Energia Calzada del Valle 510 pte desp 206 Colonia del Valle Garza Garcia Nuevo Leon Mexico C P 66220 52 818 675 9000 Fax: 52 818 675 9090 [email protected]

ES None

CSA America, Inc. 2011 JOHN KORY

CSA America, Inc. 8501 East Pleasant Valley Road Cleveland, Ohio 44131 216.524.4990 Fax 216.520.8979 [email protected]

AR-TL None

2001 Alternate SUSAN MCCARTHY CSA America, Inc. 8501 East Pleasant Valley Road Cleveland, Ohio 44131 216.524.4990 [email protected]

M None

Copper Development Association 2010 PENNIE L. FEEHAN

Feehan Consulting Feehan Consulting 611 S. Palm Canyon Drive Suite #7445 Palm Springs, CA 92264-7453 760.322.3610 [email protected]

M None

2001 Alternate DALE L. POWELL Project Manager & Piping Applications Specialist Copper Development Association PO Box 6687 Harrisburg, PA 17112-0687 717.533.0353 Fax: 717.533.1688 [email protected]

M None

27



5

Fairmont Specialty 2010 TODD BUECHLER

Loss Control Senior Specialist Fairmont Specialty 224 Hillcrest Drive Geneseo, IL 61254 309.838-3231 Fax: 877.622.6115 [email protected]

I None

2001 Alternate DUANE W. BROWN Loss Control Technical Director Ranger Insurance Company P.O. Box 2807 Houston, TX 77252-2807 713.954.8312 Fax: 713.267.5215 [email protected]

I None

Fire Marshals Association of North America 1998 SHARON E. COATES

Director Arkansas Liquefied Petroleum Gas Board 3800 Richards Road North Little Rock, Arkansas 72117 501.683.4100 Fax: 501.683.4111 [email protected]

EA None

Hearth, Patio & Barbecue Association 2007 THOMAS R. STROUD

Sr. Manager, Codes & Standards Hearth, Patio & Barbecue Association Pacific NW Office 4606 SW Trenton Seattle, WA 98136 703.522.0086 (ext.) 128 [email protected]

M None

Individuals 2011 Edward J. Angelone

President EJA Consultants LLC 318 Hamden Avenue Staten Island, NY 10306 718.873.7814 [email protected]

SE None

28

6

2011 Dmitry Antonov Dmitry Antonov Engineering Team Leader Intertek Testing Services NA Inc. 3933 US Route 11 South Cortland, NY 13045-9715 607.758.6460 [email protected]

AR-TL None

1998 THOMAS R. CRANE (Chairperson) President Crane Engineering 2355 Polaris Lane North Plymouth, MN 55447 763.557.9090 Fax: 753.557.0710 [email protected]

SE None

1998 STEEN HAGENSEN President ENERVEX, Inc. 1200 Northmeadow Parkway Suite 180 Roswell, GA 30076 770.587.3238 Fax: 770.587.4731 [email protected]

M None

2011 Theodore C. Lemoff Consultant 7456 Jacaranda Park Road Unit #103 Naples, FL 34109 617.308.0159 [email protected]

SE None

International Association of Plumbing and Mechanical Officials 2011 HUGO AGUILAR

Mechanical Code Administrator IAPMO 4755 East Philadelphia Street Ontario, CA 91761-2816 909.472.4111 Fax: 909.472.4160 [email protected]

EA None

29

7

2009 Alternate MATT SIGLER

Plumbing Code Development Administrator IAPMO 5001 East Philadelphia Street Ontario, CA 91761-2816 909.230-5535 Fax: 909.472.4181 [email protected]

EA None

International Code Council 2003 GREGG GRESS

Senior Technical Staff Codes and Standards Development Dept. International Code Council 4051 West Flossmoor Road Country Club Hills, IL 60478-5771 888.422.7233 x4343 Fax: 708.799.0320 [email protected]

EA None

The National Association of Home Builders 2006

Dan Buuck Program Manager National Association of Home Builders (NAHB) 1201 15th Street, NW Washington, DC 20005 202.266.8366 Fax: 202.266.8369 [email protected]

I-M None

2008 Alternate LAWRENCE BROWN, CBO Director of Codes & Standards Advocacy Group National Association of Home Builders (NAHB) 1201 15th Street, NW Washington, DC 20005 202.266.8565 Fax: 202.266.8369 [email protected]

I-M None

National Chimney Sweep Guild 1990 JAMES P. BREWER

President Magic Sweep Corporation 938 Providence Road Chesapeake, VA 23325 757.523.2400 Fax: 757.523.2130 [email protected]

I-M None

30


8

National Park Service 2010 KENNETH SONS

Denver Service Center National Park Service 12795 West Alameda Parkway Lakewood, CO 80228 [email protected]

EA None

1994 Alternate BRIAN C. OLSON, P. E. Safety and Fire Protection Engineer Denver Service Center National Park Service 12795 West Alameda Parkway Lakewood, CO 80228 303.969.2196 Fax: 303.969.2736 Cell: 720.352.3374 [email protected]

EA None

National Propane Gas Association 1990 MICHAEL R. GORHAM

Northwest LP-Gas Company 1608 NW 4 Street Grand Rapids, MN 55744-2104 612.390.5619 Fax: 218.999.7073 [email protected]

ES None

1994 Alternate BRUCE SWIECICKI, P.E. Senior Technical Advisor National Propane Gas Association 342 N. LaGrange Road Suite 353 Frankfort, IL 60423 815.806.9035 Fax: 815.806.9036 [email protected]

ES None

Oregon Mechanical Officials Association 2007 KARL HARN

Senior Mechanical Inspector City of Portland Bureau of Development Services 1900 SW 4th Ave Portland, OR 97201 503.796.7418 [email protected]

EA None

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9

Southern California Gas Company 2004 S. RON CAUDLE

State and National Codes Project Manager Southern California Gas Company 555 W. Fifth Street, GT28A4 Los Angeles, CA 90013 213.244.4361 Fax: 213.244.8252 [email protected]

ES None

State of Connecticut - Office of State Fire Marshal 1998 JOHN P DOUCETTE

Fire and Life Safety Specialist Connecticut Department of Public Safety Office Of State Fire Marshal 1111 Country Club Road P.O. Box 2794 Middletown, CT 06457-9294 860.685.8350 Fax: 860.685.8359 [email protected]

EA None

Texas Railroad Commission 2006 JAMES T. OSTERHAUS

LPG Program Manager Railroad Commission of Texas, Safety Division 1701 North Congress Avenue Austin, TX 78711-2967 512.463.6692 Fax: 512.463.7319 [email protected]

EA None

2001 Alternate RICHARD L. GILBERT Program Specialist Railroad Commission of Texas, Gas Service Division LP-Gas Safety 1701 North Congress Avenue Austin, TX 78711-2967 512.463.6935 Fax: 512.463.6921 [email protected]

EA None

Underwriters Laboratories Inc. 2003 ROBERT WOZNIAK

Principal Engineer – Gas Products PDE Department – 3615CSNK Underwriters Laboratories Inc. 1285 Walt Whitman Rd. Melville, NY 11747 631.546.2434 Fax: 631.439.6449 [email protected]

AR-TL None

32


10

United Association 2007 SIDNEY L CAVANAUGH

Cavanaugh Consulting Codes & Standards Professional Cavanaugh Consulting 1010 Bishops Lodge Rd. Santa Fe, NM 87501 800.719.9989 Fax: 505.474.3729 [email protected]

I-M None

MEMBERSHIP BY CATEGORY

To ensure a substantial balance of interests on the Committee, not more than one

third of the membership shall come from any one classification.

TOTAL %

Applied Research/Testing Laboratory (AR-TL): 3 8.82

Energy Supplier (ES): 8 23.53

Enforcing Authority (EA): 7 20.59

Installer/Maintainer (I-M): 3 8.82

Insurance (I): 1 2.94

Manufacturers (M): 9 26.47

Special Expert (SE): 3 8.82

TOTAL: 34 100%

33

11

PANEL LISTING

Z223 ADVISORY PANEL ON EQUIPMENT INSTALLATION

Ron Caudle (Panel Chair) Ed Angelone Denise Beach Gerald Davis Gregg Gress Peter Holmes Ted Lemoff

Andrea Papageorge Phillip Ribbs Mike Romano Robert Stack Bruce Swiecicki Franklin Switzer Robert Wozniak

Z223 ADVISORY PANEL ON PIPING Tom Crane (Panel Chair) Ed Angelone Denise Beach Ron Caudle Sid Cavanaugh Gerald Davis Pennie Feehan Ronnie Frazier Michael R. Gorham

Gregg Gress Patricio Himes Peter Holmes Ted Lemoff Phillip Ribbs Mike Romano Bruce Swiecicki Franklin Switzer Stephen Yapchanyk

Z223 ADVISORY PANEL ON VENTING James P. Brewer (Panel Chair) Ed Angelone Denise Beach Ron Caudle Tom Crane Gerald Davis Glen Edgar Gregg Gress Mike Gorham Steen Hagensen

Patricio Himes Ted Lemoff Andrea Papageorge Phillip Ribbs Mike Romano Jack Scanlon Robert Stack Tom Stroud Franklin Switzer Robert Wozniak

34

12

MEMBERSHIP CATEGORIES

(1) Applied Research/Testing

Laboratory (AR-TL)

A representative of an independent testing laboratory or

independent applied research organization that

promulgates or applies standards.

(2) Energy Supplier (ES) A representative of an entity that supplies energy to

installations covered by the standard

(3) Enforcing Authority (EA)

A representative of an agency, organization or

governmental body that promulgates and/or enforces

standards.

(4) Installer/Maintainer (I-M) A representative of an entity that is in the business of

installing or maintaining a product, assembly, system, or

portion thereof, that is affected by the standard.

(5) Insurance (I)

A representative of an insurance company, broker, agent,

bureau, or inspection agency.

(6) Manufacturer (M) A representative of a maker or marketer of a product,

assembly, system, or portion thereof, that is affected by

the standard.

(7) Special Expert (SE) A person not representing any of the previous

classifications, but who has special expertise in the scope

of the standard, or portion thereof.

35

TOTAL

Cat. Member Name MEMBERS %AHRI 5 14.7M M DAVID BERNINGM M GLEN EDGARM M EARL RIGHTMIERM M BRYAN ROCKYM M JACK SCANLONAmerican Gas Association 4 11.8ES M JOESPH "MIKE" ROMANOES M RONNIE RAY FRAZIERES M ANDREA PAPAGEORGEES M STEPHEN YAPCHANYK

A STEPHEN ABERNATHYA GERALD G DAVIS

American Public Gas Association 1 2.9ES M MIKE DEEGANAssociaion Mexicana de Distribuidores de Gas Lp 1 2.9ES M PATRICIO HIMES RADKEAssociation of Home Appliance Manufacturers 1 2.9M M PETER HOEKSTRACSA America 1 2.9AR-TL M JOHN KORY

A SUSAN MCCARTHYCopper Development Association 1 2.9

10/4/2012ASC Z223 Interest Category Balance

pp pM M PENNIE FEEHAN

A DALE POWELLFairmont Specialty 1 2.9I M TODD BUECHLER

A DUANE W. BROWNFire Marshals Association of North America 1 2.9EA M SHARON COATESHearth, Patio & Barbecue Association 1 2.9M M THOMAS STROUDIndividuals 5 14.7SE M EDWARD ANGELONEAR-TL M DMITRY ANTONOVSE M THOMAS R. CRANESE M STEEN HAGENSENM M THEODORE LEMOFFInternational Assoc. of Plumbing & Mech. Officials 1 2.9EA M HUGO AGUILAR

A MATT SIGLERInternational Code Council 1 2.9EA M GREGG GRESSNational Assoc. of Home Builders 1 2.9I-M M DAN BUUCK

A LAWRENCE BROWN, CBONational Chimney Sweep Guild 1 2.9I-M M JAMES P. BREWER

Page 136

National Park Service 1 2.9EA M KENNETH SONS

A BRIAN C. OLSON, P. E.The National Propane Gas Association 1 2.9ES M MICHAEL R. GORHAM

A BRUCE SWIECICKI, P.E.Oregon Mechanical Officials Association 1 2.9EA M KARL HARNSouthern California Gas Company 1 2.9ES M S. RON CAUDLEState of CT - Office of State Fire Marshal 1 2.9EA M JOHN DOUCETTETexas Railroad Commission 1 2.9EA M JAMES T. OSTERHAUS

A RICHARD L. GILBERTUL Laboratories: 1 2.9AR-TL M ROBERT WOZNIAKUnited Association 1 2.9I-M M SIDNEY CAVANAUGH

TOTAL VOTING MEMBERS: 34 100.0

Membership by Category:

TOTAL %Applied Research/Testing Laboratory (AR-TL): 3 8.82

Energy Supplier (ES): 8 23.53Enforcing Authority (EA): 7 20.59Installer/Maintainer (I-M): 3 8.82

Insurance (I): 1 2.94Manufacturers (M): 9 26.47


TOTAL: 34 100.0LEGEND:MEMBERSHIP: M = Member

A = Alternate

To ensure a substantial balance of interests on the

Page 237

B L A N K

38

ANSI Accredited Standards Committee on National Fuel Gas Code Z

2 2

3

ASC Z223 Secretariat American Gas Association 400 North Capitol Street NW Washington, DC 20001

Paul Cabot Phone: 202.824.7312 Fax: 202.824.9122 Email: [email protected]

October 02, 2012

SECRETARY MEMBERSHIP EVALUATION

Individual Mr. Franklin R. Switzer Jr.

FROM ASC Z223 Procedures:

3.2 Membership Requests for membership shall be addressed to the Secretariat, indicating the

applicant’s direct and material interest in the Committee’s work and stating

qualifications and willingness to participate actively. In addition, if the applicant is an organization, company, or government agency, it shall identify a representative (and an alternate, if desired).

Membership shall be subject to approval of the Committee on recommendation of the

Secretariat (see 6.2.2) Applicants not approved for membership by the Committee shall be advised of the

reason for Committee disapproval and their right to appeal (see 9.0) The termination of members shall be subject to approval of the Committee on

recommendation of the Secretariat with respect to the criteria of 6.2.

Evaluation: Membership Type: Individual

Category Selection: Special Expert (SE)

Committee Balance: Committee balance would be maintained (see attached).

Direct & Material Interest: Fuel gas code compliance for industrial applications

Qualifications: Mr. Switzer is currently a member of NFPA 54. His background in industrial applications regarding fuel gas codes and standards compliance would assist the committee in their review of proposed code revisions. His participation would add to the Committee’s

technical base.

Willingness to Participate: Has indicated that he is willing to actively participate.

Secretary Recommendation: APPROVE

39

NFPA Technical Committee Membership Application NFPA uses the information in this application to determine your qualifications and to assure that NFPA technical committee appointments are made in a way that ensures that committees will contain a fair balance of interests. Please provide us with as much information as you feel will assist us in the selection process. Feel free to attach additional pages if necessary. (PLEASE TYPE OR PRINT) NFPA Committee_NFPA 54_NFG-AAA________________________________________________________________________________________

Name of Individual (Mr./Ms.)_Mr. Franklin R. Switzer Jr._______________________________Title_President_____________________________

Employer _S-afe, Inc._______________________________________________________________________________________________________

Mailing Address_2405 West Sacramento Drive___________________________________________________________________________________

City_Muncie___________________________State/Province IN _________Zip/Postal Code_47303-9002______Country_USA______________

UPS or Other Delivery Address _____________________________________________________________________________________________ _

Telephone_(765) 284-8164_____________________Fax_(765) [email protected]___________________ Please indicate position for which you are applying. (See “Information Sheet for Technical Committee Applicants” for descriptions of membership types.)

Principal member categories: Personal/Individual Member Organization representative □*

Section/technical committee/technical correlating committee representative Nonvoting Member □ Other member category (see attached information sheet):________________________________________________

Alternate □ If yes, to whom (indicate name of current principal or principal applicant):_____________________________________________ (If you are applying as an alternate for an “Organization Representative”* fill out section 2 below.) 1. QUALIFICATIONS OF APPLICANT (Please attach résumé)

a. Provide evidence of your general knowledge and competence in the scope (work) of the committee: Over the past 7 years, my

Company has been consulting with major manufacturing plants regarding the installation of Natural Gas systems within their plants

primarily covered by NFPA 85 and 86. That involvement very often extends back to the plant delivery system for the Natural Gas.

Additionally I am a current member of NFPA 85-FUN, SBB & MBB as well as NFPA 86 and often discussions with these standards

committees involve areas involving NFPA 54. Recently while serving on ASME CSD-1, issues in conflict between several standards

lead me to elect to try to get involved with NFPA 54 more deeply.

b. What is your specific relationship to one or more elements of the scope of work of the committee? General interaction between the

current gas standards leads me to think that having individuals on multiple standards can help all committees develop a better

understanding of their impact on one another. ________________________________________________________________________

c. Will you be able to actively participate in the work of the committee including responding to correspondence and ballots and

attending all committee meetings? Yes

2. Organization Representatives: (To be filled out only for those applying to be “Organization Representatives” under Section 3-2.2.1(a) of

the Regulations Governing Committee Projects. See * below and attached information sheet.)

a. Indicate below the name of the entity you would be representing and include written authorization from that entity for you to serve as

their representative: S-afe, Inc. As President and Principle I am authorized to approve this commitment.

*This category applies only to authorized representatives of an organization such as a trade association or professional society (usually other than your employer) that has a demonstrated ability to represent a broad spectrum of groups or individuals. If you do not meet this definition, check the box for Personal/Individual Member (or other member category) and skip section 2.

40

b. Organization Representatives: Does the organization you would represent have a mechanism for instructing votes? If so, can the time constraints imposed by the Regulations Governing Committee Projects be met?

_______________________________________________________________________________________________________________ 3. FUNDING SOURCE(S) FOR YOUR PARTICIPATION

a. What person(s) or organization(s) would fund your participation as a committee member, either in whole or in part? (You should list

your employer if your participation is funded by your employer or if your participation is part of your employment responsibilities or

otherwise related to your employment.) S-afe, Inc. ____________________________________________________________________

_______________________________________________________________________________________________________________

b. Background and description of your employer and/or other person(s) or organization(s) funding participation: S-afe, Inc. is

primarily involved with Industrial Combustion Safety. We provide consulting, Auditing, Training and Testing services to

organizations wishing to maintain compliance with current Codes and Standards relating to Industrial Gas Equipment. __________

_______________________________________________________________________________________________________________

_______________________________________________________________________________________________________________

4. ADDITIONAL COMMENTS _I feel that my involvement with the Industrial Gas Distribution processes while working with Ingersoll

Rand/Dresser Rand and more recently my experience with the Industrial Heating and Processing areas would give a well rounded experience that

could help further the advancement of the NFPA 54 code. ____________________________________________________________________

Check here if you are a member of NFPA NFPA Member Number__961983__________________________________ Languages other than English_________________________________________________________ If appointed to a Technical Committee, please indicate in which format you wish to receive the ROP/ROC: CD Rom □ Print □ Web Download (Note: In choosing the download option you intend to view the ROP/ROC from our Website. No copy will be sent to you.) COMPLETE A SEPARATE APPLICATION FORM FOR EACH COMMITTEE ON WHICH YOU DESIRE TO SERVE. IN ORDER TO ASSURE THE PROMPT PROCESSING OF YOUR REQUEST, PLEASE BE SURE TO COMPLETE ALL QUESTIONS, ATTACH A CURRENT RÉSUMÉ, AND SIGN THIS APPLICATION. If appointed as a member of an NFPA Technical Committee, I hereby agree as follows: I agree to read and abide by all applicable NFPA rules and guidelines including, without limitation, the Regulations Governing Committee Projects and the Guide for Participants in the NFPA Codes and Standards Development Process. In addition, I hereby agree to notify the Secretary, Standards Council, of a change in status, including change of employment, organization represented, or funding source. I agree that any material that I author, either individually or with others, in connection with work performed as a member of an NFPA Technical Committee shall be considered to be works made for hire for the NFPA. To the extent that I retain any rights in copyright as to such material, or as to any other material authored by me that I submit for the use of an NFPA Technical Committee in the drafting of an NFPA code, standard or other NFPA document, I hereby grant and assign all and full rights in copyright to the NFPA. I further agree and acknowledge that I acquire no rights in any publication of the NFPA and that copyright and all rights in materials produced by NFPA Technical Committees are owned by the NFPA and that the NFPA may register copyright in its own name. I certify that all of the information on this application is true and accurate.

Signature Date 6/6/2009

_______________________________________________________________________________ Mail to: Secretary, Standards Council, NFPA

1 Batterymarch Park, Quincy, MA 02169-7471 OR Fax to:(617)770-3500 OR Email to: [email protected]

41

mailto:[email protected]?subject=TC%20Application%20Form

TOTAL

Cat. Member Name MEMBERS %AHRI 5 14.3M M DAVID BERNINGM M GLEN EDGARM M EARL RIGHTMIERM M BRYAN ROCKYM M JACK SCANLONAmerican Gas Association 4 11.4ES M JOESPH "MIKE" ROMANOES M RONNIE RAY FRAZIERES M ANDREA PAPAGEORGEES M STEPHEN YAPCHANYK

A STEPHEN ABERNATHYA GERALD G DAVIS

American Public Gas Association 1 2.9ES M MIKE DEEGANAssociaion Mexicana de Distribuidores de Gas Lp 1 2.9ES M PATRICIO HIMES RADKEAssociation of Home Appliance Manufacturers 1 2.9M M PETER HOEKSTRACSA America 1 2.9AR-TL M JOHN KORY

A SUSAN MCCARTHYCopper Development Association 1 2.9M M PENNIE FEEHAN

With Switzer MembershipASC Z223 Interest Category Balance

M M PENNIE FEEHANA DALE POWELL

Fairmont Specialty 1 2.9I M TODD BUECHLER

A DUANE W. BROWNFire Marshals Association of North America 1 2.9EA M SHARON COATESHearth, Patio & Barbecue Association 1 2.9M M THOMAS STROUDIndividuals 6 17.1SE M EDWARD ANGELONEAR-TL M DMITRY ANTONOVSE M THOMAS R. CRANESE M STEEN HAGENSENSE M THEODORE LEMOFFSE M FRANKLIN SWITZERInternational Assoc. of Plumbing & Mech. Officials 1 2.9EA M HUGO AGUILAR

A MATT SIGLERInternational Code Council 1 2.9EA M GREGG GRESSNational Assoc. of Home Builders 1 2.9I-M M DAN BUUCK

A LAWRENCE BROWN, CBONational Chimney Sweep Guild 1 2.9I-M M JAMES P. BREWER

Page 142

National Park Service 1 2.9EA M KENNETH SONS

A BRIAN C. OLSON, P. E.The National Propane Gas Association 1 2.9ES M MICHAEL R. GORHAM

A BRUCE SWIECICKI, P.E.Oregon Mechanical Officials Association 1 2.9EA M KARL HARNSouthern California Gas Company 1 2.9ES M S. RON CAUDLEState of CT - Office of State Fire Marshal 1 2.9EA M JOHN DOUCETTETexas Railroad Commission 1 2.9EA M JAMES T. OSTERHAUS

A RICHARD L. GILBERTUL Laboratories: 1 2.9AR-TL M ROBERT WOZNIAKUnited Association 1 2.9I-M M SIDNEY CAVANAUGH

TOTAL VOTING MEMBERS: 35 100.0

Membership by Category:

TOTAL %Applied Research/Testing Laboratory (AR-TL): 3 8.57

Energy Supplier (ES): 8 22.86Enforcing Authority (EA): 7 20.00Installer/Maintainer (I-M): 3 8.57

Insurance (I): 1 2.86Manufacturers (M): 8 22.86


TOTAL: 35 100.0LEGEND:MEMBERSHIP: M = Member

A = Alternate

To ensure a substantial balance of interests on the

Page 243

B L A N K

44

RETURN TO: Mail: Paul Cabot, Z223 Secretary, American Gas Association, 400 N. Capitol St., N.W., Washington, DC 20001

Fax: 202.824.9122

ASC Z223 COMMITTEE MEMBERSHIP MEETING BALLOT

RECORD MY VOTE ON ICC MEMBERSHIP TO THE Z223 COMMITTEE AS FOLLOWS (see attached secretary evaluation):

Individual: Franklin Switzer, Jr.

Affirmative Negative Abstaining

MEMBER SIGNATURE: ___________________________________ DATE: _____________ _________________________________________ Name (please print)

DUE: October 16, 2011

45

RETURN TO: Mail: Paul Cabot, Z223 Secretary, American Gas Association, 400 N. Capitol St., N.W., Washington, DC 20001

Fax: 202.824.9122

46

TA

B 5 – N

FP

A 5

4 C

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pda

te

s

NOTES:

____________________________________________________________________________ NFPA 54 Roster - page 49______________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________

47

B L A N K

48

Tuesday 10 2, Tuesday

James P. Brewer

NFG-AAAPrincipalMagic Sweep Corporation938 Providence RoadChesapeake, VA 23325National Chimney Sweep Guild

Phone/Cell: 757-523-2400Fax: 757-523-2130Email : [email protected]

IM 1/1/1990 Brian C. Olson

NFG-AAAPrincipalUS Department of the InteriorNational Park ServiceDenver Service CenterPO Box 25287Denver, CO 80225-0287


U 1/1/1995

Bruce J. Swiecicki

NFG-AAAAlternateNational Propane Gas Association21200 South LaGrange Road, Suite 353Frankfort, IL 60423National Propane Gas AssociationPrincipal: Mike Gorham


IM 1/1/1995 Patricio J. Himes

NFG-AAAPrincipalSistemas de EnergiaCalzada del Valle 510 pte despacho 206Colonia del Valle Garza GarciaNuevo Leon, CP 66220 MexicoAsociación Mexicana de Distribuidores de Gas

Phone/Cell: 52 818 675 9000Fax: 52 818 675 9090Email : [email protected]

U 1/1/1996

Steen Hagensen

NFG-AAAPrincipalENERVEX1200 Northmeadow Parkway, Suite 180Roswell, GA 30076


M 1/16/1998 Paul W. Cabot

NFG-AAASecretary (Nonvoting)American Gas Association400 North Capitol Street, NWWashington, DC 20001American Gas Association


IM 7/17/1998

Sharon E. Coates

NFG-AAAPrincipalState of ArkansasLiquefied Petroleum Gas Board3800 Richards RoadNorth Little Rock, AR 72117-2944International Fire Marshals Association


E 10/10/1998 Glen A. Edgar

NFG-AAAPrincipalSelkirk/Hart & Cooley, Inc.5030 Corporate Exchange Blvd., SEGrand Rapids, MI 49512Air-Conditioning, Heating, & Refrigeration InstituteDirect Heating


M 1/1/1995

149


Dale L. Powell

NFG-AAAPrincipalCopper Development AssociationPO Box 6687Harrisburg, PA 17112-0687Copper Development Association Inc.Alternate: Pennie L. Feehan


M 4/5/2001 Alberto Jose Fossa

NFG-AAAPrincipalMDJ, Assessoria & Engenharia ConsultivaAv. Vereador Jose Diniz, 3720 - conj.707Campo Belo-Sao Paulo, SP 04604-007 BrasilNFPA Latin American Section

Phone/Cell: 55 11 55317654Fax: 55 11 55358660Email : [email protected]

SE 10/4/2001

Robert Wozniak

NFG-AAAPrincipalUL LLC1285 Walt Whitman RoadMelville, NY 11747-3085


RT 1/15/2004 Gregg A. Gress

NFG-AAAPrincipalInternational Code Council4051 West Flossmoor RoadCountry Club Hills, IL 60478

Phone/Cell: 888-422-7233 x4343Fax: 708-799-0320Email : [email protected]

E 4/15/2004

Peter T. Holmes

NFG-AAAPrincipalState of MaineDept of Professional & Financial RegulationPropane & Natural Gas Board35 State House StationAugusta, ME 04333-0035Alternate: John P. Doucette

Phone/Cell: 207-624-8608 207-446-2826Fax: 207-624-8636Email : [email protected]

E 9/30/2004 Mike Deegan

NFG-AAAPrincipalClearwater Gas System400 North Myrtle AvenueClearwater, FL 33755American Public Gas Association

Phone/Cell: 727-562-4900 x7439Fax: 727-562-4907Email : [email protected]

U 1/14/2005

John P. Doucette

NFG-AAAAlternateConnecticut Department of Public SafetyOffice of State Fire Marshal1111 Country Club RoadPO Box 2794Middletown, CT 06457-9294Principal: Peter T. Holmes


E 1/16/1998 Mike Gorham

NFG-AAAPrincipalNorthwest Gas Company1608 NW 4th StreetGrand Rapids, MN 55744National Propane Gas AssociationAlternate: Bruce J. Swiecicki


IM 1/1/1991

250


James T. Osterhaus

NFG-AAAPrincipalRailroad Commission of TexasAlternative Energy DivisionPO Box 12967Austin, TX 78711


E 7/28/2006 Ronnie Ray Frazier

NFG-AAAPrincipalAtmos Energy Corporation5420 LBJ Freeway, Suite 1830CDallas, TX 75240American Gas AssociationNorthwestAlternate: Joseph M. Romano


IM 3/15/2007

Todd W. Buechler

NFG-AAAPrincipalFairmont Specialty Insurance224 Hillcrest DriveGeneseo, IL 61254


I 3/15/2007 Thomas R. Crane

NFG-AAAChairCrane Engineering2355 Polaris Lane North, Suite 120Plymouth, MN 55447Alternate: Matthew W. Wilber


SE 4/17/1998

Andrea Lanier Papageorge

NFG-AAAPrincipalAGL ResourcesTen Peachtree Place, 17th FloorAtlanta, GA 30309American Gas AssociationEasternAlternate: Stephen V. Abernathy


IM 7/23/2008 Joseph M. Romano

NFG-AAAAlternateTECO Peoples Gas1920-9 Avenue NorthSaint Petersburg, FL 33702American Gas AssociationNorthwestPrincipal: Ronnie Ray Frazier


IM 8/5/2009

Franklin R. Switzer, Jr.

NFG-AAAPrincipalS-afe, Inc.2405 West Sacramento DriveMuncie, IN 47303-9002


SE 8/5/2009 Karl Harn

NFG-AAAPrincipalCity of Portland1900 SW 4th Avenue, Suite 5000Portland, OR 97201Oregon Mechanical Officials Association


E 10/27/2009

351


Jeffrey A. Stackpole

NFG-AAAPrincipalAon Global Risk ConsultingProperty Risk Control Division53944 Luzerne DriveMacomb, MI 48042

Phone/Cell: 586-677-4152Fax:Email : [email protected]

I 3/2/2010 Matt Sigler

NFG-AAAPrincipalInternational Association of Plumbing & Mechanical Officials4755 East Philadelphia StreetOntario, CA 91761International Association of Plumbing & MechanicalOfficialsPlumbing


E 10/27/2009

Lynne Simnick

NFG-AAAAlternateInternational Association of Plumbing & Mechanical Officials5001 East Philadelphia StreetOntario, CA 91761International Association of Plumbing & MechanicalOfficialsMechanical, Plumbing


E 11/02/2006 Phillip H. Ribbs

NFG-AAAPrincipalPHR Consultants206 Cypress ParkSanta Cruz, CA 95060California State Pipe Trades Council


L 10/23/2003

Denise Beach

NFG-AAAStaff LiaisonNational Fire Protection Association1 Batterymarch ParkQuincy, MA 02169-7471


8/24/2010 Pennie L. Feehan

NFG-AAAAlternatePennie L. Feehan Consulting611 South Palm Canyon Drive, Suite 7445Palm Springs, CA 92264Copper Development Association Inc.Principal: Dale L. Powell


M 10/20/2010

Dmitry Antonov

NFG-AAAPrincipalIntertek3933 US Route 11 SouthCortland, NY 13045-9715


RT 3/1/2011 Hugo Aguilar

NFG-AAAPrincipalInternational Association of Plumbing & Mechanical Officials5001 East Philadelphia StreetOntario, CA 91761International Association of Plumbing & MechanicalOfficialsMechanical


E 8/9/2011

452


Edward Angelone

NFG-AAAPrincipalEJA Consultants LLC318 Hanmden AvenueStaten Island, NY 10306


SE 7/19/2002 Theodore C. Lemoff

NFG-AAAPrincipal7456 Jacaranda Park Road, Unit 103Naples, FL 34109


SE 10/18/2011

John Kory

NFG-AAAPrincipalCSA America, Inc.8501 East Pleasant Valley RoadIndependence, OH 44131


RT 03/05/2012 Stephen V. Abernathy

NFG-AAAAlternatePiedmont Natural GasPO Box 16087Greenville, SC 29606American Gas AssociationEasternPrincipal: Andrea Lanier Papageorge


IM 03/05/2012

Stephen M. Yapchanyk

NFG-AAAPrincipalConsolidated Edison Company of NY, Inc.1615 Bronxdale Avenue, Bldg. 21A-2nd FloorBronx, NY 10462American Gas AssociationSouthwestAlternate: Gerald G. Davis


IM 03/05/2012 David Berning

NFG-AAAPrincipalA.O. Smith Corporation25731 Highway 1McBee, SC 29101-9304Air-Conditioning, Heating, & Refrigeration InstituteWater HeatingAlternate: John “Jack” Scanlon

Phone/Cell: 843-335-8281 x 373Fax: 843-335-6603Email : [email protected]

M 3/2/2010

John “Jack” Scanlon

NFG-AAAAlternateRheem Manufacturing Company2600 Gunter Park Drive, EastMontgomery, AL 36109-1413Air-Conditioning, Heating, & Refrigeration InstituteWater HeatingPrincipal: David Berning


M 03/05/2012 Matthew W. Wilber

NFG-AAAAlternateCrane Engineering2355 Polaris Lane North, Suite 120Plymouth, MN 55447Principal: Thomas R. Crane


SE 03/05/2012

553


Gerald G. Davis

NFG-AAAAlternateWashington Gas4000 Forestville RoadForestville, MD 20747American Gas AssociationSouthwestPrincipal: Stephen M. Yapchanyk


IM 08/09/2012

654

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NOTES:

____________________________________________________________________________ 1. September 18-20, 2012 - Advisory Panel Meetings - page 57_________________________ 2. November 15-16, 2012 - Full Committee Meeting - page 95_________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________

55

B L A N K

56


Minutes Advisory Panel on Piping

National Fuel Gas Code Committee Four Points by Sheraton Historic Savannah, Savannah, GA

September 18, 2012

1. Call to Order and Self Introductions: Piping Panel Chair, Tom Crane, call the meeting to order and members and guests introduced themselves. (Attachment A).

2. Adoption of Agenda: The agenda was approved as distributed.

3. Announcements:

a. Revised NFPA Process: Denise Beach provided an overview of the revised NFPA process.

b. Fire alarms and Exits: Participants were made aware of the fire alarms and exists.

c. AGA Antitrust Guidelines: Participants were made aware of the antitrust guidelines.

4. Advisory Panel Membership: The membership was reviewed.

5. 2015 Edition Public Input: The panel reviewed and took action (Attachment B) on any public input to the following chapters and annexes:

a. Chapters: 3 (piping specific), 5, 6, 7, & 8. he following ad hoc task groups were created:

i. Log 54-6 & Log 54-25: Corrosion Protection. The proposals cover important subject that should be addressed with new code text. The coverage included in the new NFPA 58 may provide more appropriate coverage that can be referenced. An ad hoc task group was formed consisting of Lemoff, Gress, Crane and Gorham.

ii. Log 54-50: Tracer Wirer: The section text needs to be revised to include additional technologies. An ad hoc task group was formed consisting of Yapchanyk.

b. Annex: A (piping specific), B, C, D, E, & J (piping specific)

6. Panel Projects: Due to a lack of time the panel projects were held for discussion by the full committee at their October 16-18 meeting (Attachment C).

7. New Business: No new business was presented.

8. Adjourn: The meeting was adjourned at 5:46 p.m.

57


Minutes Advisory Panel on Venting

National Fuel Gas Code Committee Four Points by Sheraton Historic Savannah, Savannah, GA

September 19, 2012

1. Call to Order and Self Introductions: Piping Panel Chair, Tom Crane, call the meeting to order and members and guests introduced themselves. (Attachment A).


3. Announcements:





5. 2015 Edition Public Input: The panel reviewed and took action (Attachment B) on any public input to the following chapters and annexes:

a. Chapters: 3 (venting specific), 12, & 13

b. Annex: A (venting specific), F, & J (venting specific)

6. Panel Projects: The panel reviewed and took action on appliance specific projects (Attachment C).

7. New Business: The panel discussed possible new committee input on the following:

a. A review of the code’s venting criteria to determine if revisions are needed considering the use of the types of vents currently available and the types of vented equipment being installed. For example, the code allows the use of single wall vents in other than residential applications but is it unclear whether there is continue need in industrial applications. Also, Chapter 12 contains alternate vent sizing for natural draft appliances that may not be of much use today.

8. Adjourn: The meeting was adjourned at 12:10 p.m.

58

ASC Z223 NFPA 54


Minutes

Advisory Panel on Equipment

National Fuel Gas Code Committee

Four Points by Sheraton Historic Savannah, Savannah, GA

September 19-20, 2012

1. Call to Order and Self Introductions: Piping Panel Chair, Tom Crane, call the meeting to order

and members and guests introduced themselves. (Attachment A).


3. Announcements:





5. 2015 Edition Public Input: The panel reviewed and took action (Attachment B) on any public

input to the following chapters and annexes:

a. Chapters: 3 (appliance specific), 4, 9, 10, & 11. The following ad hoc task group was

created

i. Log 54-28: 3.3.51 Gases. The code does not currently provide requirements for the

direct use of biogases which may contain contaminates and may adversely inpact

certain piping materials, appliances and equipment. The panel established an ad hoc

task group consisting of Switzer, Swiecicki and Nneka (AGA).

b. Annex: A (appliance specific), G, H, I, & J (appliance specific)

6. Panel Projects: The panel reviewed and took action on appliance specific projects (Attachment

C).

7. New Business: The panel discussed possible new committee input on the following:

a. 9.6.1 – Develop a draft committee input to exempt educational Bunsen burners from the

connector requirements in the code. One possible revision is to create a new 9.6.3 and a

new subsection under 9.6.1 to cover unlisted hoses for laboratory and educational use. An

ad hoc task group was form with members Gregg and Switzer.

b. 9.6.1 – Develop a draft committee input to move connector items (7) and (8) into a

standalone section. These to items are not connectors. The ad hoc task group noted in a.

will address the issue.

8. Adjourn: The meeting was adjourned on September 20th

at 11:55 a.m.

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ATTACHMENT A

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ATTACHMENT A

B L A N K

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ATTACHMENT B

SUMMARY ADVISORY PANEL ACTIONS

Z223.1/NFPA 54, 2015 Edition Public Input

1 A=Accept, R=Resolve Public Input (Reject), H=Hold, NR=No Recommendation rev. 10-03-12

Z223.1 / NFPA 54 - 2012 Public Input Panel

Action1 Public

Input Log Section/Code Impacted Submitter(s)

NR 1 Connections Wiseman – Vulcan-Hart R 7 Piping Tables Ken Wallace A 18 ASTM E2652 -New - Related Logs- #13, #14, #15, #16, #17, #18 Hirschler – GBH International

NR 4 2.3.5 Update Bender – UL H 24 3.3.5 Anode – New Anode Definition – Related Logs: #23, #24, #25, #26 Volgstadt – Volgstadt and Associates A 44 3.3.6.8 Nonresidential Low-Heat Appliance & 3.3.69 Mixing Blower Gress – ICC H 23 3.3.18 Cathodic Protection – New Definition – Related Logs: #23, #24, #25, #26 Volgstadt – Volgstadt and Associates R 28 3.3.51 Gases Carlisle – Karl Drugs R 19 3.3.64 Leak Check Dunn – Dunn Laboratories A 13 3.3.67.1 Combustible (Material) : - Related Logs- #13, #14, #15, #16, #17, #18 Hirschler – GBH International

A 15 3.3.67.2 Noncombustible (Material) - Related Logs- #13, #14, #15, #16, #17, #18 Hirschler – GBH International

R 27 3.3.88.4 Monitoring Regulator Carlisle – Karl Drugs R 58 3.3.106.2 Gas Vent Gress – ICC A 45 4.3.1 (3) Prevention of Accidental Ignition Gress – ICC A 16 4.4 Noncombustible Material - - Related Logs- #13, #14, #15, #16, #17, #18 Hirschler – GBH International R 2 5.6.1.2 Controls Baker – Maxitrol R 2a 5.6.8.4 Metallic Fittings Baker – Maxitrol A 46 5.6.8.4 (1) Threaded Fittings Gress – ICC A 47 5.6.8.4 (8) Special Fittings Gress - ICC A 48 5.6.8.4 (9) New– Related Logs: #48, #53 Gress - ICC A 30 5.6.10 Flanges Carlisle – Karl Dungs Inc. H 29 5.9.1 General – Overpressure protection Carlisle – Karl Dungs Inc. H 31 5.9.1.3 Pressure relieving Carlisle – Karl Dungs Inc.

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ATTACHMENT B





Action1 Public


H 32 5.9.2.1 (1) & (6) Pressure relieving Carlisle – Karl Dungs Inc. H 33 5.9.2.3 Token relief vlaves Carlisle – Karl Dungs Inc. R 36 5.12.1 Emergency Thermal Shutoff Fitting – NEW Steckler – Teco Americas R 39 5.13.1 & 5.13.2 EFV Minimum Supply Pressure Ranfone – AGA A 57 Table 6.2 (c) and (d) –Note Gress - ICC R 49 7.1.2.1 Burial Depth Gress – ICC H 25 7.1.3 Protection against corrosion– Related Logs: #23, #24, #25, #26 Volgstadt – Volgstadt and Associates H 6 7.1.3 Protection Against Corrosion Feehan – Feehan Consulting R 60 7.1.5 Piping Through Foundation Wall Swiecicki – NPGA H 50 7.1.7.3 Tracer wire Gress – ICC R 51 7.2.5.4 Piping on roof tops Gress – ICC A 62 7.2.6 Removal of piping Bethany – CEC Combustion Safety H 52 7.2.7 CSST Installation Gress – ICC R 53 7.2.8 Tapping - NEW– Related Logs: #48, #53 Gress – ICC A 54 7.3.2 (1) Fittings in Concealed Locations Gress – ICC A 55 7.3.6 Valves and Outlets Gress – ICC R 56 7.7.2.2 Fireplace pipe capping Gress – ICC H 43 7.13 Electrical Bonding and Grounding Stanonik, AHRI H 37 7.13.2 CSST Torbin – Omega Flex R 3 7.13.3 Prohibited Use Rorro – Rorro R 20 8.2.3 Leak Check Dunn – Dunn Laboratories R 63 8.3.1.1 Removal from Service Bethany – CEC Combustion Safety R 21 9.1.x Propane Appliances in Below Grade Installations - NEW Dunn – Dunn Laboratories R 22 9.6.4.2 Manual shutoff valves - NEW Dunn – Dunn Laboratories

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ATTACHMENT B





Action1 Public


R 9 10.3.7.4 Supply Ducts Habegger – Habegger Controls R 64 10.3.7.4 Supply Ducts Lemoff – TLemoff Engineering R 8 10.10.5 Circulating Air Habegger – Habegger Controls A 40 10.15.1 Household Cooking Appliances Ranfone – AGA A 41 10.15.2 Built-In Units Ranfone – AGA R 12 10.24.1 through 10.24.3 Stationary Gas Engines Hirschler – GBH International R 10 12.5.1 Wawrla – Centrothem Eco Systems. R 59a Table 12.5.1 Single-Wall Pipe – Related Logs: #59 & 59a. Gress – ICC R 11 12.5.2 Plastic Pipe Venting Wawrla – Centrothem Eco Systems. A 58a 12.5.2 Plastic piping – Related Logs: #58a & #58b Gress – ICC A 58b 12.7.3.3 Category II, III and IV Appliances – Related Logs: #58a & #58b Gress – ICC R 59 12.8 Single-Wall Metal Pipe – Related Logs: #59 & 59a. Gress – ICC

NR 34 A.3.3.51 Bio Gases Carlisle – Karl Dungs Inc. A 14 A.3.3.67.1 Combustible Materials - Related Logs- #13, #14, #15, #16, #17, #18 Hirschler – GBH International A 17 A.4.4 Non Combustible Materials - Related Logs- #13, #14, #15, #16, #17, #18 Hirschler – GBH International

NR 38 A.5.8.2 Gas Pressure Location Carlisle – Karl Dungs Inc. NR 35 A.5.9.2 (3) Monitor Regulator Sets - NEW Carlisle – Karl Dungs Inc. NR 26 A.7.1.3 Mill Coated Pipe– Related Logs: #23, #24, #25, #26 Volgstadt – Volgstadt and Associates R 65 A.10.3.7.4 Supply Ducts – NEW Lemoff – Tlemoff Engineering A 42 A.10.15.1.1 Clearance Above Cooking Top – NEW Ranfone – AGA

NR 61 C.3 Leak Check Not Using a Meter Swiecicki – NPGA A 5 L.2.5 UL Publications Bender - UL

67

B L A N K

68

ATTACHMENT C

AGENDA ITEM 6 – COMMITTEE PROJECTS

ISSUE: Definitions not used in mandatory text.

BACKGROUND: “Air Shutters” is not used until Annex G.

3.3.4 Air Shutter. An adjustable device for varying the size of the primary air inlet(s).

COMMITTEE ACTION/MOTION: Secretary requested to assign to the appropriate advisory panel.

PANEL RECOMMENDATION: Delete – A draft committee input has been created.

ISSUE: 3.3.11.3 Low Pressure Boiler

BACKGROUND: Possible editorial revision. NFPA 211 extracts the definition from NFPA 31 and is

slightly different wording. TC should review definition in 31 and determine if source is acceptable.

3.3.11.3 Low-Pressure Boiler. A boiler for generating steam at gauge pressures not in excess of 15 psi (103 kPa) or for

furnishing water at a maximum temperature of 250°F (121°C) at a maximum gauge pressure of 160 psi (1103 kPa). [211,

2006].


PANEL RECOMMENDATION: Extract the NFPA 31 definition. A draft committee input has been

created.

ISSUE: 3.3.19.1 Type 1 Clothes Dryer.

BACKGROUND: Possible editorial revision. Use of “may or may not be” – should an add annex note

be added about coin-operation?

3.3.19.1 Type 1 Clothes Dryer. Primarily used in family living environment. May or may not be coin-operated

for public use.


PANEL RECOMMENDATION: No revision is needed.


BACKGROUND: “Consumption” is not used until Annex B.

3.3.24 Consumption. The maximum amount of gas per unit of time, usually expressed in cubic feet per hour, or

Btu per hour, required for the operation of the appliance or appliances supplied.


PANEL RECOMMENDATION: Delete – A draft committee input has been created

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ATTACHMENT C



BACKGROUND: “Design Certification” – not used in any part of document.

3.3.28 Design Certification. The process by which a product is evaluated and tested by an independent laboratory

to affirm that the product design complies with specific requirements.




BACKGROUND: Thermally and mechanically actuated automatic vent damper device – only automatic

vent damper is really used. There is a reference to an electric vent damper, but not electrically operated

automatic vent damper.

3.3.29.5 Vent Damper Device.

3.3.29.5.1 Automatic Vent Damper Device. A device that is intended for installation in the venting system, in the

outlet of or downstream of the appliance draft hood, of an individual automatically operated appliance and that is

designed to automatically open the venting system when the appliance is in operation and to automatically close off the

venting system when the appliance is in a standby or shutdown condition.

3.3.29.5.2 Electrically Operated, Automatic Vent Damper Device. An automatic vent damper device that employs

electrical energy to control the device.

3.3.29.5.3 Mechanically Actuated, Automatic Vent Damper Device. An automatic vent damper device dependent for

operation upon the direct application or transmission of mechanical energy without employing any type of energy

conversion.

3.3.29.5.4 Thermally Actuated, Automatic Vent Damper Device. An automatic vent damper device dependent for

operation exclusively on the direct conversion of the thermal energy of the vent gases into mechanical energy.


PANEL RECOMMENDATION: A draft committee input was developed to address the issue.


BACKGROUND: “Domestic laundry stove” – not used, but laundry stove is.

3.3.31 Domestic Laundry Stove. A fuel-gas burning appliance consisting of one or more open-top-type burners

mounted on high legs or having a cabinet base.

10.14 Hot Plates and Laundry Stoves.

10.14.1 Listed domestic hot plates and laundry stoves installed on combustible surfaces shall be set on their own

legs or bases. They shall be installed with minimum horizontal clearances of 6 in. (150 mm) from combustible

material.

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ATTACHMENT C


10.14.2 Unlisted domestic hot plates and laundry stoves shall be installed with horizontal clearances to combustible

material of not less than 12 in. (300 mm). Combustible surfaces under unlisted domestic hot plates and laundry

stoves shall be protected in an approved manner.

10.14.3 The vertical distance between tops of all domestic hot plates and laundry stoves and combustible material

shall be at least 30 in. (760 mm).

12.3.2 Appliances Not Required to be Vented. The following appliances shall not be required to be vented.

(1) Listed ranges

(2) Built-in domestic cooking units listed and marked for optional venting

(3) Listed hot plates and listed laundry stoves




BACKGROUND: “Unit Heater” – all references in the document are generic “unit heater”. No use of

“high static pressure-type” or “low static pressure-type”. The two types of unit heaters addressed in the

document are suspended and floor-mounted.

3.3.57.5 Unit Heater.

3.3.57.5.1 High-Static Pressure Unit Heater. A self-contained, automatically controlled, vented, appliance having

integral means for circulation of air against 0.2 in. (15 mm) H2O or greater static pressure.

3.3.57.5.2 Low-Static Pressure Unit Heater. A self-contained, automatically controlled, vented, appliance, intended

for installation in the space to be heated without the use of ducts, having integral means for circulation of air, normally

by a propeller fan(s), and may be equipped with louvers or face extensions made in accordance with the manufacturers’

specifications.

10.26 Unit Heaters.

10.26.1 Support. Suspended-type unit heaters shall be safely and adequately supported with due consideration given to

their weight and vibration characteristics. Hangers and brackets shall be of noncombustible material.

10.26.2 Clearance.

10.26.2.1 Suspended-Type Unit Heaters. Suspended-type unit heaters shall comply with the following

requirements:

(1) A listed unit heater shall be installed with clearances from combustible material of not less than 18 in. (460 mm)

at the sides, 12 in. (300 mm) at the bottom, and 6 in. (150 mm) above the top where the unit heater has an

internal draft hood, or 1 in. (25 mm) above the top of the sloping side of a vertical draft hood. A unit heater listed

for reduced clearances shall be installed in accordance with the manufacturer’s installation instructions.

(2) Unlisted unit heaters shall be installed with clearances to combustible material of not less than 18 in. (460 mm).

(3) Clearances for servicing shall be in accordance with the manufacturers’ recommendations contained in the

installation instructions.

10.26.2.2 Floor-Mounted-Type Unit Heaters. Floor-mounted-type unit heaters shall comply with the following

requirements:

(1) A listed unit heater shall be installed with clearances from combustible material at the back and one side only of

not less than 6 in. (150 mm). Where the flue gases are vented horizontally, the 6 in. (150 mm) clearance shall be

measured from the draft hood or vent instead of the rear wall of the unit heater. A unit heater listed for reduced

clearances shall be installed in accordance with the manufacturer’s installation instructions.

(2) Floor-mounted-type unit heaters installed on combustible floors shall be listed for such installation.

(3) Combustible floors under unlisted floor-mounted unit heaters shall be protected in an approved manner.

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ATTACHMENT C


(4) Clearances for servicing shall be in accordance with the manufacturers’ recommendations contained in the

installation instructions.

10.26.3 Combustion and Circulating Air. Combustion and circulating air shall be provided in accordance with

Section 9.3.

10.26.4 Ductwork. A unit heater shall not be attached to a warm air duct system unless listed and marked for such

installation.

10.26.5 Installation in Commercial Garages and Aircraft Hangars. Unit heaters installed in garages for more than

three motor vehicles or in aircraft hangars shall be of a listed type and shall be installed in accordance with 9.1.11 and

9.1.12.


PANEL RECOMMENDATION: Delete the two sub definitions and add a general unit heater

definition. – A draft committee input has been created.


BACKGROUND: “Heating Value” – not used until Annex A.

3.3.58 Heating Value (Total). The number of British thermal units produced by the combustion, at constant

pressure, of 1 ft3 (0.03 m

3 ) of gas when the products of combustion are cooled to the initial temperature of the gas

and air, when the water vapor formed during combustion is condensed, and when all the necessary corrections have

been applied.

A.5.4.2 To obtain the cubic feet per hour of gas required, divide the Btu per hour rating by the Btu per cubic ft

heating value of the gas supplied. The heating value of the gas can be obtained from the local gas supplier.

TABLE A.11.1.1 Note: To convert to Btu per hour, multiply the cubic feet per hour of gas by the Btu per cubic foot

heating value of the gas used.

B.3.1 General. To obtain the cubic feet per hour of gas required, divide the total Btu/hr input of all appliances by the average Btu

heating value per cubic foot of the gas. The average Btu per cubic foot of the gas in the area of the installation can

be obtained from the serving gas supplier.

B.7.1 Example 1 - Longest Length Method. Determine the required pipe size of each section and outlet of the

piping system shown in Figure B.7.1, with a designated pressure drop of 0.5 in. w.c. (125 Pa) using the Longest

Length Method. The gas to be used has 0.60 specific gravity and a heating value of 1000 Btu/ft3 (37.5 MJ/m

3).

7.2 Example 2 - Hybrid or Dual Pressure Systems. Determine the required CSST size of each section of the

piping system shown in Figure B.7.2, with a designated pressure drop of 1 psi (7 kPa) for the 2 psi (14 kPa) section

and 3 in. w.c. (0.75 kPa) pressure drop for the 13 in. w.c. (2.49 kPa) section. The gas to be used has 0.60 specific

gravity and a heating value of 1000 Btu/ft3 (37.5 MJ/ m

3).

B.7.3 Example 3 - Branch Length Method. Determine the required semi-rigid copper tubing size of each section

of the piping system shown in Figure B.7.3, with a designated pressure drop of 1 in. w.c. (250 Pa) (using the

Branch Length Method). The gas to be used has 0.60 specific gravity and a heating value of 1,000 Btu/ft3 (37.5

MJ/m3).

B.7.4 Example 4 - Modification to Existing Piping System Determine the required CSST size for Section G

(retrofit application) of the piping system shown in Figure B.7.4, with a designated pressure drop of 0.5 in. w.c.

(125 Pa) using the branch length method. The gas to be used has 0.60 specific gravity and a heating value of 1,000

Btu/ft3 (37.5 MJ/m

3).

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ATTACHMENT C





BACKGROUND: “Hot taps” – not used in any part of the document.

3.3.60 Hot Taps. Piping connections made to operating pipelines or mains or other facilities while they are in op-

ration. The connection of the branch piping to the operating line and the tapping of the operating line are done

while it is under gas pressure.


PANEL RECOMMENDATION: Hold for full committee – did not consider revision due to a lack of

time.


BACKGROUND: “Orifice” is used throughout, but what is a “spud”?

3.3.74 Orifice. The opening in a cap, spud, or other device whereby the flow of gas is limited and through which

the gas is discharged to the burner.

J.1.33 Orifice Spud. A removable plug or cap containing an orifice that permits adjustment of the flow of gas

either by substitution of a spud with a different sized orifice or by the motion of a needle with respect to it.



ISSUE: 3.3.76 Parking Structure

BACKGROUND: Editorial items identified during 2012 edition publication review. The “primary”

source of this definition is NFPA 88A. Change extract tag to source?

3.3.76 Parking Structure. A building, structure, or portion thereof used for the parking, storage, or both, of motor

vehicles. [1, 2009]


PANEL RECOMMENDATION: Extract the definition from NFPA 88A. A draft committee input has

been created.


BACKGROUND: “Thermostat” – we only refer to a room temperature thermostat, we don’t break it

down by thermostat type.

3.3.101 Thermostat.

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ATTACHMENT C


3.3.101.1 Electric Switch Type Thermostat. A device that senses changes in temperature and controls electrically,

by means of separate components, the flow of gas to the burner(s) to maintain selected temperatures.

3.3.101.2 Integral Gas Valve Type Thermostat. An automatic device, actuated by temperature changes, designed to

control the gas supply to the burner(s) in order to maintain temperatures between predetermined limits, and in which

the thermal actuating element is an integral part of the device: (1) graduating thermostat, a thermostat in which the

motion of the valve is approximately in direct proportion to the effective motion of the thermal element induced by

temperature change; (2) snap-acting thermostat, a thermostat in which the thermostatic valve travels instantly from

the closed to the open position, and vice versa.

9.7.3 Electrical Circuit. The electrical circuit employed for operating the automatic main gas-control valve,

automatic pilot, room temperature thermostat, limit control, or other electrical devices used with the appliances shall

be in accordance with the wiring diagrams certified or approved by the original appliance manufacturer.

9.8 Room Temperature Thermostats.

9.8.1 Locations. Room temperature thermostats shall be installed in accordance with the manufacturers' instructions.

9.8.2 Drafts. Any hole in the plaster or panel through which the wires pass from the thermostat to the appliance being

controlled shall be sealed so as to prevent drafts from affecting the thermostat.

10.6.2 Installation. A decorative appliance for installation in a vented fireplace shall be installed only in a vented

fireplace having a working chimney flue and constructed of noncombustible materials. These appliances shall not be

thermostatically controlled.

10.11.1 Installation. The installation of floor furnaces shall comply with the following requirements:

(3) Thermostats controlling floor furnaces shall not be located in a room or space which can be separated from the

room or space in which the register of the floor furnace is located.



ISSUE: Consistent use of terms.

BACKGROUND: Possible editorial item found during the 2012 edition publication review. “Flue

gases”, “products of combustion”, and “vent gases” are all used to refer to the gases being vented. Can

we pick one and use it consistently throughout this section? Also, how can regulator vent be a sub-

definition of vent? A regulator vent does not vent flue gases.

3.3.106 Vent. A passageway used to convey flue gases from appliances or their vent connectors to the outdoors.

3.3.106.1 Common Vent. That portion of a vent or chimney system that conveys products of combustion from more

than one appliance.

3.3.106.2 Gas Vent. A passageway composed of listed factory-built components assembled in accordance with the

manufacturer’s installation instructions for conveying vent gases from appliances or their vent connectors to the

outdoors.

3.3.106.2.1 Gas Vent, Special Type. Gas vents for venting listed Category II, III, and IV appliances.

3.3.106.2.2 Gas Vent, Type B. A vent for venting listed gas appliances with draft hoods and other Category I

appliances listed for use with Type B gas vents. ,

3.3.106.2.3 Gas Vent, Type B-W. A vent for venting listed wall furnaces.

3.3.106.2.4 Gas Vent, Type L. A vent for venting appliances listed for use with Type L vents and appliances listed

for use with Type B gas vents.

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ATTACHMENT C


3.3.106.3 Regulator Vent. The opening in the atmospheric side of the regulator housing permitting the in and out

movement of air to compensate for the movement of the regulator diaphragm.


PANEL RECOMMENDATION: A draft committee input was developed to address the issue.

ISSUE: 5.6.4 – Use of PVC as an acceptable gas piping material.

BACKGROUND: The 2012 code provided a reference to PVC as an acceptable gas pressure piping

material under the old ASTM D2513 standard in section 5.6.4.1.2 . PVC has been used for such

purposes in the past.

5.6* Acceptable Piping Materials and Joining Methods.

5.6.1 General.

5.6.1.1AcceptableMaterials. Materials used for piping systems shall comply with the requirements of this

chapter or shall be acceptable to the authority having jurisdiction.

5.6.4.1.2 Plastic pipe, tubing and fittings, other than polyethylene, shall be identified and conform to the 2008

edition of ASTM D2513, Standards Specification for Thermoplastic Gas Pressure Pipe Tubing and Fittings. Pipe

to be used shall be marked “gas” and “ASTM D2513”.

COMMITTEE ACTION/MOTION: Committee approved to piping panel for consideration of

revisions. The committee noted the following:

PVC is not listed for use with natural gas or LP

PVC is not used for pressurized applications

Fittings are not approved.

The panel should consider a prohibition of PVC as a fuel gas piping material. Also consider deleting “or

shall be acceptable to the authority having jurisdiction” in section 5.6.1.1.


time.

ISSUE: Polyamide Product Standard

BACKGROUND: Beach email 12/29/10: Some ANSI news regarding polyamide piping for fuel gas

applications – BSR/ASTM WK20984‐201x. This is just something we probably want the piping panel

to monitor during development. I assume this is in response to the change to ASTM 2513 to cover PE

only.

5.6.4 Plastic Pipe, Tubing, and Fittings.

5.6.4.1 Standard and Marking.

5.6.4.1.1 Polyethylene plastic pipe, tubing, and fittings used to supply fuel shall conform to ASTM D2513,

Standard Specification for Polyethylene (PE) Gas Pressure Pipe, Tubing, and Fittings. Pipe to be used shall be

marked “gas” and “ASTM D2513.”

5.6.4.1.2 Plastic pipe, tubing and fittings, other than polyethylene, shall be identified and conform to the 2008

edition of ASTM D2513, Standards Specification for Thermoplastic Gas Pressure Pipe Tubing and Fittings. Pipe

to be used shall be marked “gas” and “ASTM D2513”.

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ATTACHMENT C


COMMITTEE ACTION/MOTION: Assigned to the piping panel for review and develop a possible

committee proposal.


time.

ISSUE: 5.7.2.2 – Possible obsolete coverage/term.

BACKGROUND: Editorial items identified during 2012 edition publication review. Reference to coal

bins really necessary in the 21st century?

5.7.2.2 Gas meters shall not be placed where they will be subjected to damage, such as adjacent to a driveway,

under a fire escape, in public passages, halls, coal bins, or where they will be subject to excessive corrosion or

vibration.



time.

ISSUE: 5.10.1.1 – Is the term “equipment” correct.

BACKGROUND: Lemoff email 2/5/10: Is equipment correct? 5.10 Back Pressure Protection.

5.10.1 Where to Install. 5.10.1.1 Protective devices shall be installed as close to the equipment as practical where the design of

equipment connected is such that air, oxygen, or standby gases could be forced into the gas supply system.

COMMITTEE ACTION/MOTION: Approved to piping panel. Committee is recommending that “or

appliance” be added to after “equipment” to cover all applications.


time.

ISSUE: Table 6.2(c) & Table 6.2(d) – Revise by rounding to three significant digits.

BACKGROUND: The two new 2012 edition tables were not rounded to three significant digits as was

done for all remaining pipe sizing tables. In reviewing the existing tables the secretary found that the 4

inch column contained the pipe capacities for 3 ½ inch diameter piping. The Secretary has drafted two

replacement tables as follows:

Table 6.2(c) Schedule 40 Metallic Pipe

Gas Natural Inlet pressure Less than 2 psi

Pressure Drop 3.0 in. w.c. Specific Gravity 0.60

INTENDED USE: Initial supply pressure of 8.0 in. w.c. or greater

Pipe Size (in.)

Nominal: 1/2 3/4 1 11/4 11/2 2 21/2 3 4

76

ATTACHMENT C


Actual ID: 0.622 0.824 1.049 1.380 1.610 2.067 2.469 3.068 4.026

Length (ft) Capacity in Cubic Feet of Gas per Hour

10 454 949 1,790 3,670 5,500 10,600 16,900 29,800 43,678 60,800 20 312 652 1,230 2,520 3,780 7,280 11,600 20,500 30,020 41,800 30 250 524 986 2,030 3,030 5,840 9,310 16,500 24,107 33,600 40 214 448 844 1,730 2,600 5,000 7,970 14,100 20,632 28,700 50 190 397 748 1,540 2,300 4,430 7,060 12,500 18,286 25,500 60 172 360 678 1,390 2,090 4,020 6,400 11,300 16,569 23,100 70 158 331 624 1,280 1,920 3,690 5,890 10,400 15,243 21,200 80 147 308 580 1,190 1,790 3,440 5,480 9,690 14,181 19,800 90 138 289 544 1,120 1,670 3,230 5,140 9,090 13,305 18,500

100 131 273 514 1,060 1,580 3,050 4,860 8,580 12,568 17,500 125 116 242 456 936 1,400 2,700 4,300 7,610 11,139 15,500 150 105 219 413 848 1,270 2,450 3,900 6,890 10,093 14,100 175 96 202 380 780 1,170 2,250 3,590 6,340 9,285 12,900 200 90 188 353 726 1,090 2,090 3,340 5,900 8,638 12,000 250 80 166 313 643 964 1,860 2,960 5,230 7,656 10,700 300 72 151 284 583 873 1,680 2,680 4,740 6,937 9,660 350 66 139 261 536 803 1,550 2,470 4,360 6,382 8,890 400 62 129 243 499 747 1,440 2,290 4,050 5,937 8,270 450 58 121 228 468 701 1,350 2,150 3,800 5,570 7,760 500 55 114 215 442 662 1,280 2,030 3,590 5,262 7,330 550 52 109 204 420 629 1,210 1,930 3,410 4,997 6,960 600 50 104 195 400 600 1,160 1,840 3,260 4,767 6,640 650 47 99 187 384 575 1,110 1,760 3,120 4,565 6,360 700 46 95 179 368 552 1,060 1,690 3,000 4,386 6,110 750 44 92 173 355 532 1,020 1,630 2,890 4,225 5,890 800 42 89 167 343 514 989 1,580 2,790 4,080 5,680 850 41 86 162 332 497 957 1,530 2,700 3,949 5,500 900 40 83 157 322 482 928 1,480 2,610 3,828 5,330 950 39 81 152 312 468 901 1,440 2,540 3,718 5,180

1000 38 79 148 304 455 877 1,400 2,470 3,616 5,040 1100 36 75 141 289 432 833 1,330 2,350 3,435 4,780 1200 34 71 134 275 412 794 1,270 2,240 3,277 4,560 1300 33 68 128 264 395 761 1,210 2,140 3,138 4,370 1400 31 65 123 253 379 731 1,160 2,060 3,014 4,200 1500 30 63 119 244 366 704 1,120 1,980 2,904 4,050 1600 29 61 115 236 353 680 1,080 1,920 2,804 3,910 1700 28 59 111 228 342 658 1,050 1,850 2,714 3,780 1800 27 57 108 221 331 638 1,020 1,800 2,631 3,670 1900 27 56 105 215 322 619 987 1,750 2,555 3,560 2000 26 54 102 209 313 602 960 1,700 2,485 3,460

Table 6.2(d) Schedule 40 Metallic Pipe




Pipe Size (in.)

Nominal: 1/2 3/4 1 11/4 11/2 2 21/2 3 4

Actual ID: 0.622 0.824 1.049 1.380 1.610 2.067 2.469 3.068 4.026

77

ATTACHMENT C


Length (ft) Capacity in Cubic Feet of Gas per Hour

10 660 1,380 2,600 5,340 8,000 15,400 24,600 43,400 63,551 88,500 20 454 949 1,790 3,670 5,500 10,600 16,900 29,800 43,678 60,800 30 364 762 1,440 2,950 4,410 8,500 13,600 24,000 35,075 48,900 40 312 652 1,230 2,520 3,780 7,280 11,600 20,500 30,020 41,800 50 276 578 1,090 2,240 3,350 6,450 10,300 18,200 26,606 37,100 60 250 524 986 2,030 3,030 5,840 9,310 16,500 24,107 33,600 70 230 482 907 1,860 2,790 5,380 8,570 15,100 22,178 30,900 80 214 448 844 1,730 2,600 5,000 7,970 14,100 20,632 28,700 90 201 420 792 1,630 2,440 4,690 7,480 13,200 19,359 27,000

100 190 397 748 1,540 2,300 4,430 7,060 12,500 18,286 25,500 125 168 352 663 1,360 2,040 3,930 6,260 11,100 16,207 22,600 150 153 319 601 1,230 1,850 3,560 5,670 10,000 14,684 20,500 175 140 293 553 1,140 1,700 3,270 5,220 9,230 13,509 18,800 200 131 273 514 1,056 1,580 3,050 4,860 8,580 12,568 17,500 250 116 242 456 936 1,400 2,700 4,300 7,610 11,139 15,500 300 105 219 413 848 1,270 2,450 3,900 6,890 10,093 14,100 350 96 202 380 780 1,170 2,250 3,590 6,340 9,285 12,900 400 90 188 353 726 1,090 2,090 3,340 5,900 8,638 12,000 450 84 176 332 681 1,020 1,960 3,130 5,540 8,105 11,300 500 80 166 313 643 964 1,860 2,960 5,230 7,656 10,700 550 76 158 297 611 915 1,760 2,810 4,970 7,271 10,100 600 72 151 284 583 873 1,680 2,680 4,740 6,937 9,660 650 69 144 272 558 836 1,610 2,570 4,540 6,643 9,250 700 66 139 261 536 803 1,550 2,470 4,360 6,382 8,890 750 64 134 252 516 774 1,490 2,380 4,200 6,148 8,560 800 62 129 243 499 747 1,440 2,290 4,050 5,937 8,270 850 60 125 235 483 723 1,390 2,220 3,920 5,745 8,000 900 58 121 228 468 701 1,350 2,150 3,800 5,570 7,760 950 56 118 221 454 681 1,310 2,090 3,690 5,410 7,540

1000 55 114 215 442 662 1,280 2,030 3,590 5,262 7,330 1100 52 109 204 420 629 1,210 1,930 3,410 4,997 6,960 1200 50 104 195 400 600 1,160 1,840 3,260 4,767 6,640 1300 47 99 187 384 575 1,110 1,760 3,120 4,565 6,360 1400 46 95 179 368 552 1,060 1,690 3,000 4,386 6,110 1500 44 92 173 355 532 1,020 1,630 2,890 4,225 5,890 1600 42 89 167 343 514 989 1,580 2,790 4,080 5,680 1700 41 86 162 332 497 957 1,530 2,700 3,949 5,500 1800 40 83 157 322 482 928 1,480 2,610 3,828 5,330 1900 39 81 152 312 468 901 1,440 2,540 3,718 5,180 2000 38 79 148 304 455 877 1,400 2,470 3,616 5,040

COMMITTEE ACTION/MOTION: Approved as a Committee Proposal subject to Piping Panel

review.

PANEL RECOMMENDATION: A public input was revised to incorporate the above revisions.

ISSUE: 7.1.2.1 (A) – Awkward language

BACKGROUND: Editorial items identified during 2012 edition publication review. This language is

awkward. Can we do any better?

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ATTACHMENT C


7.1.2.1 Cover Requirements. Underground piping systems shall be installed with a minimum of 12 in. (300 mm) of

cover.

(A) The minimum cover shall be increased to 18 in. (460 mm) if external damage to the pipe or tubing from external

forces is likely to result.

(B) Where a minimum of 12 in. (300 mm) of cover cannot be provided, the pipe shall be installed in conduit or

bridged (shielded).



time.

ISSUE: 7.3.2 Fittings in Concealed Locations

BACKGROUND: Mr. Lemoff was made aware of this after the proposal closing date, and he therefore

requests that this be added to the piping panel agenda for consideration as a committee proposal.

Current paragraph 7.3.2 covers a material requirement, and not an installation method or procedure, and

therefore should be in Chapter 5, Gas Piping System Design, Materials, and Components rather than.

Chapter 7, Gas Piping Installation.

Relocate 7.3.2 to 5.6.10, and renumber subsequent paragraphs:

7.3.2 5.6.10 Fittings in Concealed Locations. Fittings installed in concealed locations shall be

limited to the following types:

(1) Threaded elbows, tees, and couplings

(2) Brazed fittings

(3) Welded fittings

(4) Fittings listed to ANSI LC 1/CSA 6.26, Fuel Gas Piping Systems Using Corrugated

Stainless Steel Tubing (CSST), or ANSI LC 4, Press-Connect Copper and Copper Alloy

Fittings for Use in Fuel Gas Distribution Systems

COMMITTEE ACTION/MOTION: Panel member proposal – no committee action.

PANEL RECOMMENDATION: Hold for full committee meeting – did not consider revision due to

a lack of time.

ISSUE: 7.3.3 & 7.3.4 – Penetration of walls, floors or partitions.

BACKGROUND: Beach email 12/29/10: I am suddenly getting phone calls on 7.3.3 and 7.3.4.

Specifically, I’ve spoken several times to an architect and a gas supplier working on the same job. The

gas supplier is interpreting 7.3.3 and the first sentence of 7.3.4 to mean that tubing is prohibited from

penetrating walls, floors or partitions of any kind, not just the solid kind. I can’t seem to convince him

otherwise, so maybe we can look at the wording of 7.3.4 or add a positive paragraph clearly stating that

tubing shall be permitted to penetrate walls, floors or partitions.

7.3.3 Piping in Partitions. Concealed gas piping shall not be located in solid partitions.

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ATTACHMENT C


7.3.4 Tubing in Partitions. This provision shall not apply to tubing that pierces walls, floors, or partitions. Tubing

installed vertically and horizontally inside hollow walls or partitions without protection along its entire concealed

length shall meet the following requirements:

(1) A steel striker barrier not less than 0.0508 in. (1.3 mm) thick, or equivalent, is installed between the tubing and

the finished wall and extends at least 4 in. (100 mm) beyond concealed penetrations of plates, fire stops, wall

studs, and so on.

(2) The tubing is installed in single runs and is not rigidly secured.

COMMITTEE ACTION/MOTION: Approved to Piping Panel for review and possible revised

language.


time.

ISSUE: 7.12.5.1 – Question on use of terms.

BACKGROUND: Editorial items identified during 2012 edition publication review. Are “large” and

“small” really necessary here?

7.12.5.1* Location. The gas-mixing machine shall be located in a large well-ventilated area or in a small detached

building or cutoff room provided with room construction and explosion vents in accordance with sound

engineering principles. Such rooms or below finished ground level installations shall have adequate positive

ventilation.



time.

ISSUE: 7.12.6 – Question on use of terms.

BACKGROUND: Editorial items identified during 2012 edition publication review. Should the term

“practicable” be deleted.

7.12.6 Use of Automatic Firechecks, Safety Blowouts, or Backfire Preventers. Automatic firechecks and safety

blowouts or backfire preventers shall be provided in piping systems distributing flammable air-gas mixtures from

gas-mixing machines to protect the piping and the machines in the event of flashback, in accordance with the

following:

(1)* Approved automatic firechecks shall be installed upstream as close as practicable to the burner inlets following

the firecheck manufacturers’ instructions.



time.

80

ATTACHMENT C


ISSUE: 8.1.1.5 – Replace “telltale” with “double block and bleed system”

BACKGROUND: To use current technical language as utilized in the NFPA 56PS standard.

8.1.1.5 A piping system shall be tested as a complete unit or in sections. Under no circumstances shall a valve in a

line be used as a bulkhead between gas in one section of the piping system and test medium in an adjacent section,

unless two valves are installed in series with a valved “tell-tale” located between these valves. A valve shall not be

subjected to the test pressure unless it can be determined that the valve, including the valve closing mechanism, is

designed to safely withstand the test pressure.

COMMITTEE ACTION/MOTION: Approved the following as a Committee Proposal and assigned

the Piping Panel to draft a reason and a diagram in Annex A.

8.1.1.5* A piping system shall be tested as a complete unit or in sections. Under no circumstances shall a valve in a


unless two valves are installed in series with a valved “telltale” a double block and bleed valve system is installed

located between these valves. A valve shall not be subjected to the test pressure unless it can be determined that the

valve, including the valve closing mechanism, is designed to safely withstand the test pressure.

A.8.1.1.5 Add diagram & note why the term was revised.


time.

ISSUE: 8.1.1.7 – Add reference to NFPA 56 on pipe cleaning.

BACKGROUND: Consider additional cleaning technical requirements for piping covered by the code.

8.1 Pressure Testing and Inspection.

8.1.1* General.

8.1.1.1 Prior to acceptance and initial operation, all piping installations shall be visually inspected and pressure tested

to determine that the materials, design, fabrication, and installation practices comply with the requirements of this

code.

8.1.1.2 Inspection shall consist of visual examination, during or after manufacture, fabrication, assembly, or pressure

tests.

8.1.1.3 Where repairs or additions are made following the pressure test, the affected piping shall be tested. Minor

repairs and additions are not required to be pressure tested, provided that the work is inspected and connections are

tested with a noncorrosive leak-detecting fluid or other leak-detecting methods approved by the authority having

jurisdiction.

8.1.1.4 Where new branches are installed to new appliance(s), only the newly installed branch(es) shall be required to

be pressure tested. Connections between the new piping and the existing piping shall be tested with a noncorrosive

leak-detecting fluid or approved leak-detecting methods.

8.1.1.5 A piping system shall be tested as a complete unit or in sections. Under no circumstances shall a valve in a


unless two valves are installed in series with a valved “tell-tale” located between these valves. A valve shall not be

subjected to the test pressure unless it can be determined that the valve, including the valve closing mechanism, is

designed to safely withstand the test pressure.

8.1.1.6 Regulator and valve assemblies fabricated independently of the piping system in which they are to be installed

shall be permitted to be tested with inert gas or air at the time of fabrication.

8.1.1.7 Prior to testing, the interior of the pipe shall be cleared of all foreign material.

81

ATTACHMENT C


COMMITTEE ACTION/MOTION: Approved the following Committee Proposal and assigned the

Piping Panel to consider additional revisions as follows:

8.1.1.7* Prior to testing, the interior of the pipe shall be cleared of all foreign material.

A.8.1.1.7 Fuel gas piping operating above 125 psi shall be cleaned in accordance with NFPA

56, Standard for Fire and Explosion Prevention During Cleaning and Purging of Flammable

Gas Piping Systems.

Panel should consider:

Review and correct as necessary the reference to NFPA 56 in the new A.8.1.1.7

Add a sub title to 8.1.1.2

Relocate 8.1.1.2 to after 8.1.1.7

Prohibit the blowing of fuel gas as a cleaning means

Add additional cleaning coverage for larger pipe diameters and higher pressure systems consistent

with NFPA 56.


time.

ISSUE: 8.1 – Use of gas detector.

BACKGROUND: Beach/Cabot email 1/21/11:

Hi Paul,

This is weird to me. 8.1 is for the pressure test only. The test media are limited to air, nitrogen, carbon

dioxide or inert gas. So how would you detect a leak during the pressure test using a gas detector if

there is no fuel gas? And what difference would a source of ignition make if fuel gas hasn’t been

introduced to the system? I could understand it if this was under 8.2.3 where you are looking for leaks

after the gas has been turned on, but it just doesn’t make sense in the pressure test. Can we ask the

appropriate panel to review, or is there some other logic here that I’m not getting?

Hi Denise,

It took a bit of digging and I have a reason why that section was originally in that location ‐ but you’re

right, Section 8.1.5.2 needs either to be relocated and/or reworded. The 1996 edition (and earlier

editions) had an exception that allowed the use of fuel gas as the pressure test medium for 0.5 psig

systems. When that was dropped for the 1999 edition, section 8.1.5.2 requirements were not revised to

reflect that change.

Since various gases are allowed to be used during the pressure test a “gas detector” in section 8.1.5.2

could be used as long as it appropriate for the test pressure gas that is being used. Also, the code does

not provide coverage for how to find leaks under section 8.2 leak check. That is where both a

combustive gas detector could be used and were flames should not. I think we need either relocate

8.1.5.2 to a new section (and rewrite it) to make it applicable to both the pressure test and leak check

(with a reference to it in 8.1 and 8.2) OR rewrite 8.1.5.2 to be consistent with 8.1 requirements and add

a new section in 8.2 applicable to leak checks.

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ATTACHMENT C


8.1.5 Detection of Leaks and Defects.

8.1.5.1 The piping system shall withstand the test pressure specified without showing any evidence of leakage or

other defects. Any reduction of test pressures as indicated by pressure gauges shall be deemed to indicate the

presence of a leak unless such reduction can be readily attributed to some other cause.

8.1.5.2 The leakage shall be located by means of an approved gas detector, a noncorrosive leak detection fluid, or

other approved leak detection methods. Matches, candles, open flames, or other methods that provide a source

of ignition shall not be used.

8.1.5.3 Where leakage or other defects are located, the affected portion of the piping system shall be repaired or

replaced and retested.

8.2 Piping System, Appliance and Equipment Leakage Check.

8.2.1 Test Gases. Leak checks using fuel gas shall be permitted in piping systems that have been pressure tested in

accordance with Section 8.1.

8.2.2 Turning Gas On. During the process of turning gas on into a system of new gas piping, the entire system shall be

inspected to determine that there are no open fittings or ends and that all valves at unused outlets are closed and

plugged or capped.

8.2.3* Leak Check. Immediately after the gas is turned on into a new system or into a system that has been initially

restored after an interruption of service, the piping system shall be checked for leakage. Where leakage is indicated, the

gas supply shall be shut off until the necessary repairs have been made.

8.2.4 Placing Appliances and Equipment in Operation. Appliances and equipment shall not be placed in operation

until after the piping system has been checked for leakage in accordance with 8.2.3, the piping system is purged in

accordance with 8.3 and, connections to the appliance are checked for leakage.

COMMITTEE ACTION/MOTION: Approved to Piping Panel for review and possible revised

language.


time.

ISSUE: 8.1.3.3, 8.1.3.4, and 8.1.3.5 – Question of intent

BACKGROUND: Editorial items identified during 2012 edition publication review. Scope of document

only covers piping systems up to appliance connections, not appliances or equipment. Why do we have

requirements regarding pressure testing of connected equipment and appliances? Why wouldn’t they

be isolated for all pressure testing and leak checks if they are not covered in the scope of the document?

8.1.3.3 Appliances and equipment that are not to be included in the test shall be either disconnected from the piping

or isolated by blanks, blind flanges, or caps. Flanged joints at which blinds are inserted to blank off other

equipment during the test shall not be required to be tested.

8.1.3.4 Where the piping system is connected to appliances or equipment designed for operating pressures of less

than the test pressure, such appliances or equipment shall be isolated from the piping system by disconnecting them

and capping the outlet(s).

8.1.3.5 Where the piping system is connected to appliances or equipment designed for operating pressures equal to

or greater than the test pressure, such appliances or equipment shall be isolated from the piping system by closing

the individual appliance or equipment shutoff valve(s).


83

ATTACHMENT C



ISSUE: 9.1.11.2 Appliances in Commercial Repair Garages

BACKGROUND: There appears to be potential conflict between NFGC and NFPA 30A regarding the

allowed locations for overhead space heaters located in commercial repair garages. The NFGC allows

overhead heaters (including unit and radiant) in all repair garages as long as they are installed 8 ft above

the floor. The NFPA 30A would prohibit flame or hot surface heaters in all garages where major repairs

are undertaken and permit unit heaters in minor repair facilities.

FROM NFGC:

9.1.11.2 Repair Garages. Appliances installed in repair garages shall be installed in a detached

building or room, separated from repair areas by walls or partitions, floors, or floor ceiling assemblies

that are constructed so as to prohibit the transmission of vapors and having a fire resistance rating of

not less than 1 hour, and that have no openings in the wall separating the repair area within 8 ft (2.4 m)

of the floor. Wall penetrations shall be firestopped. Air for combustion purposes shall be obtained from

the outdoors. The heating room shall not be used for the storage of combustible materials.

Exception No. 1: Overhead heaters where installed not less than 8 ft (2.4 m) above the floor shall be

permitted.

Exception No. 2: Heating appliances for vehicle repair areas where there is no dispensing or

transferring of Class I or Class II flammable or combustible liquids or liquefied petroleum gas shall

be installed in accordance with NFPA 30A, Code for Motor Fuel Dispensing Facilities and Repair

Garages.

FROM NFPA 30A:

7.6 Heat-Producing Appliances.

7.6.1 Heat-producing appliances shall be installed in accordance with the requirements of Section 7.6.

They shall be permitted to be installed in the conventional manner except as provided in Section 7.6.

7.6.2 Heat-producing appliances shall be of an approved type. Solid fuel stoves, improvised furnaces,

salamanders, or space heaters shall not be permitted in areas of repair garages used for repairing or

servicing of vehicles or in a fuel dispensing area.

Exception No. 1: Unit heaters, when installed in accordance with this chapter, need not meet this

requirement.

Exception No. 2: Heat-producing equipment for any lubrication room or service room where there is

no dispensing or transferring of Class I or Class II liquids or LP-Gas, when installed in accordance

with this chapter, need not meet this requirement.

7.6.4 Heat-producing appliances using gas or oil fuel shall be permitted to be installed in a lubrication

or service room where there is no dispensing or transferring of Class I liquids, including the open

draining of automotive gasoline tanks, provided the bottom of the combustion chamber is at least 455

mm (18 in.) above the floor and the appliances are protected from physical damage.

7.6.5 Heat-producing appliances using gas or oil fuel listed for use in garages shall be permitted to be

installed in lubrication rooms, service rooms, or fuel dispensing areas where Class I liquids are

dispensed or transferred, provided the equipment is installed at least 2.4 m (8 ft) above the floor.

84

ATTACHMENT C


7.6.6* Where major repairs are conducted on CNG-fueled vehicles or LNG-fueled vehicles, open

flame heaters or heating equipment with exposed surfaces having a temperature in excess of 399°C

(750°F) shall not be permitted in areas subject to ignitible concentrations of gas.

8.2.1* In major repair garages where CNG vehicles are repaired or stored, the area within 455 mm (18 in.)

of the ceiling shall be designated a Class I, Division 2 hazardous (classified) location.

Exception: In major repair garages, where ventilation equal to not less than four air changes per hour is

provided, this requirement shall not apply.

COMMITTEE ACTION/MOTION: Secretary Question – no committee action.

PANEL RECOMMENDATION: Staff to develop a proposal to replace section with a reference to 30A.

SECRETARY RECOMMENDATION: NFPA 30A provides more detail installation requirements

regarding heating systems located in repair garages. NFPA 30A permits the installation of fuel gas

appliances and provides code requirements that depend upon whether the repair garage is intended for

minor or major repairs as well as the type of vehicle fuel system (e.g. CNG, liquid) that may be present.

The NFPA 54 currently references NFPA 30A in exception No. 2 for one type of repair garage. A

reference to NFPA 30A for all types of repair garages would resolve the current conflict and improve code

compliance. Recommend the following committee input be approved:

9.1.11.2 Repair Garages. Appliances installed in repair garages shall be installed in accordance with NFPA 30A, Code for

Motor Fuel Dispensing Facilities and Repair Garages. a detached building or room, separated from repair areas by walls or

partitions, floors, or floor ceiling assemblies that are constructed so as to prohibit the transmission of vapors and having a

fire resistance rating of not less than 1 hour, and that have no openings in the wall separating the repair area within 8 ft (2.4

m) of the floor. Wall penetrations shall be firestopped. Air for combustion purposes shall be obtained from the outdoors.

The heating room shall not be used for the storage of combustible materials.

Exception No. 1: Overhead heaters where installed not less than 8 ft (2.4 m) above the floor shall be permitted.

Exception No. 2: Heating appliances for vehicle repair areas where there is no dispensing or transferring of Class I or

Class II flammable or combustible liquids or liquefied petroleum gas shall be installed in accordance with NFPA 30A,

Code for Motor Fuel Dispensing Facilities and Repair Garages.

ISSUE: Combustion air and venting after a home weatherization measures are undertaken.

BACKGROUND: The code currently does not address combustion air and venting for existing appliance

installations when a structure has undergone weatherization measures that could reduce air infiltration.

Building envelope changes such as replacement windows and doors, installation of storm windows and

doors, crack sealing, etc., could reduce the amount of infiltration air and impact the amount of combustion

air is available. Also, proper vent sizing and configuration is crucial to maintaining proper vent

performance is structures that experience minimum air infiltration. The proposed new language is design

to ensure that an existing appliance installation is evaluated for code compliance once such measure are

undertaken. The suggested text is similar to text in section 9.1.2 for added and converted appliances.

85

ATTACHMENT C


Suggested language:

9.1.24* Existing Appliances in Weatherized Sturctures. Where building envelope components are

replaced or modified for the purpose of reducing air infiltration the existing appliance installation shall

be checked for proper operation and to verify the following:

(1) Air for combustion is provided where required in accordance with the provisions of Section 9.3.

Where combustion air is adequate they shall be upgraded to meet Section 9.3 specifications.

(2) The venting system is constructed and sized in accordance with the provisions of Chapter 12.

Where the existing venting system is not adequate it shall be upgraded to comply with Chapter 12.

A.9.1.24. Building envelope changes such as replacement windows and doors, installation of storm

windows and doors, and crack sealing, will reduce the amount of infiltration air and may impact the

amount of combustion air is available for an existing appliance installation. Proper vent sizing and

configuration is crucial to maintaining proper vent performance in structures that experience minimum air

infiltration.

COMMITTEE ACTION/MOTION: None – potential project suggested by the Secretary.

PANEL RECOMMENDATION: Hold for the October full committee meeting. The panel believes

this coverage is needed but is concerned with some of the language. Gregg Gress volunteered to assist

staff in developing more code enforceable language.

SECRETARY RECOMMENDATION: Gregg Gress provided the following text to replace the

suggested language briefly discussed at the Panel meeting.

9.1.24* Existing Appliances. Where building envelope components of existing buildings are replaced or altered for the

purposes of reducing air infiltration, the existing appliance installations shall be inspected and tested for the purpose of

verifying compliance with the provisions of 9.3 and Chapter 12. Where the appliance installations do not comply with 9.3

and Chapter 12, they shall be altered as necessary to be in compliance with such. A.9.1.24. Building envelope changes such as the replacement of windows and doors, crack sealing and the installation of air

barriers, will reduce the amount of infiltration air and could impact the amount of combustion air that is available for

existing appliance installations. Proper vent sizing and configuration is crucial to maintaining the required vent performance

in structures that have reduced air infiltration.

ISSUE: 9.3.2 – Editorial

BACKGROUND: Editorial items identified during 2012 edition publication review. Multiple

requirements in one paragraph does not comply with the NFPA Manual of Style. Can we separate?

Also, can the third sentence be moved to the annex?

9.3.2 Indoor Combustion Air. The required volume of indoor air shall be determined in accordance with method

9.3.2.1 or 9.3.2.2 except that where the air infiltration rate is known to be less than 0.40 ACH, the method 9.3.2.2

shall be used. The total required volume shall be the sum of the required volume calculated for all appliances

located within the space. Rooms communicating directly with the space in which the appliances are installed

through openings not furnished with doors, and through combustion air openings sized and located in accordance

with 9.3.2.3, are considered a part of the required volume.

86

ATTACHMENT C




ISSUE: Combustion air for high input forced combustion appliances.

BACKGROUND: The National Fuel Gas Code combustion air requirements in section 9.3 were

developed primarily for residential-sized non-power burner appliances. The code contains no separate

requirements for power-burner type appliances often having large Btu inputs. Therefore, when the code’s

current combustion air requirements are applied to these high Btu input power burner appliances they

usually result in excessively sized outdoor combustion air openings. For that reason installers must rely

upon engineered systems or calculations.

The Fire Protection Research Foundation and AGA co-sponsored research regarding industry practices for

such appliance. The executive summary from the final report is as follows:

Based on the review of available literature, the review of the manufacturer’s requirements for

combustion air, the investigation of the combustion air required for power burners, and the

theoretical analysis on air flows through openings, the following sizing criteria for combustion

air openings for power burner appliances are theorized:

A minimum opening area of 0.2 square inches per kBtu/hr input rating for power burner

appliances equipped with a draft hood; and

A minimum opening area of 0.1 square inches per kBtu/hr input rating for power burner

appliances that require no dilution of flue gases.

Based on the theoretical analysis provided in this study, these theoretical results for combustion

air requirements for power burner appliances should provide an adequate amount of

combustion air for proper appliance operation and should optimize overall building efficiency

by reducing unnecessary area in openings. It is strongly recommended that the theorized sizing

criteria be validated through full-scale field experiments across the range of the applicable

power burner appliances, which will provide a basis for new code development. Validation of

these theoretical results is beyond the scope of this study.

COMMITTEE ACTION/MOTION: None – potential project as the result of committee indentified

research.

PANEL RECOMMENDATION: Gregg Gress to develop a draft committee input to strengthen the

code’s language regarding what types of appliances are covered by the combustion air provisions.

ISSUE: 9.4.4 – Question of intent

BACKGROUND: Editorial items identified during 2012 edition publication review. Is this really

necessary? Can it be reworded to be consistent with Manual of Style?

9.4.4 Additional Provisions. Also see 9.1.23, 9.2.1, and 12.4.3.


87

ATTACHMENT C


PANEL RECOMMENDATION: Delete 9.4.4 – A draft committee input has been created.

ISSUE: Figure 9.6.7 – gas flow arrows on sediment trap figure

BACKGROUND: Lemoff email 3/30/12:

To Ted: This is Sean McIntyre from KMS in California. I have a code Interpretation Question on

NFPA 54‐ 1999 & 2002. In 2002, pg 54‐32 section 8.5.7 on Sediment Trap says skipping ahead to the

sentence; the sediment trap shall be either a “Tee fitting with a capped nipple in the bottom outlet as

illustrated in Figure 8.5.7” or other device recognized as an effective sediment trap. The way I

understand the purpose of the Tee is to “interrupt” the flow of the gas in a way where any sediment that

may be in the flow path, drops into the “capped nipple” to prevent reaching the appliance the gas line is

serving. Your diagram is showing the gas entering the top of the Tee and exiting the Bull. I have been

piping gas fired equipment for 30 years and have piped some this way as shown, and many more the

opposite way where I supply the “Bull” on the Tee and exit the Top of the Tee and have a 3” or longer

capped nipple in the bottom of the Tee. I read the above sentence in 8.5.7 as addressing the Capped

nipple ONLY and see Nothing as to direction of Gas Flow. Can you help me with this? I have a

Plumbing Designer who insists the picture shown is the “ONLY” way you can pipe a gas appliance.

Thank You, I look forward to your help with a response.

From Ted: This is in response to your questions on NPFA 54, National Fuel Gas Code, 1999 and 2002

editions, on sediment traps. I note that the 2009 edition has essentially the same requirement. The

requirement in NFPA 54-2002 in paragraph states: 9.6.7 Sediment Trap. Where a sediment trap is not

incorporated as a part of the appliance, a sediment trap shall be installed downstream of the appliance

shutoff valve as close to the inlet of the appliance as practical at the time of appliance installation. The

sediment trap shall be either a tee fitting with a capped nipple in the bottom outlet as illustrated in

Figure 9.6.7 or other device recognized as an effective sediment trap. Illuminating appliances, ranges,

clothes dryers, decorative appliances for installation in vented fireplaces, gas fireplaces, and outdoor

grills shall not be required to be so equipped. Note the underlined text which states what constitutes a

sediment trap, and the reference to Figure 9.6.7 which illustrates the requirement. This is the only

reference to Figure 9.6.7 in NFPA 54, and it specifically refers only to the construction of the trap.

Figure 9.6.7, in addition to illustrating the assembly of the trap from the components specified,

provides a flow direction. As the flow direction is not referred to in paragraph 9.6.7, it is not part of the

code requirement. I thank you for bringing this to my attention, and I will make the committee aware of

this.

COMMITTEE ACTION/MOTION: Assigned to the Piping Panel to consider the following:

Show additional flow directions

Include new diagrams showing installation options


time.

88

ATTACHMENT C


ISSUE: 10.12.5 – Question of intent

BACKGROUND: Editorial items identified during 2012 edition publication review. Section10.12.2 (and

by extension 10.2.3) does not appear to provide the type of protection referenced here. I think this was

a reference to the old exception in 10.12.2 that was removed in the 2002 edition. Is this correct? Do we

need to pull this in to 10.12.5 somehow?

10.12.5 Combustible Material Adjacent to Cooking Top. Any portion of combustible material adjacent to a

cooking top section of a food service range, even though listed for close-to-wall installation, that is not shielded

from the wall by a high shelf, warming closet, and so on, shall be protected as specified in 10.12.2 for a distance of

at least 2 ft (0.6 m) above the surface of the cooking top.

From 2002 NFGC:

10.12.5 Combustible Material Adjacent to Cooking Top.

Exception No. 2: Unlisted floor-mounted food service equipment shall be permitted to be installed in rooms, but

not in partially enclosed areas such as alcoves, with reduced clearance of 6 in. (150 mm) to combustible material

provided the wall or combustible material is protected by sheet metal not less than 0.0152 in. (0.4 mm) thick,

fastened with noncombustible spacers that are spaced at not less than 2-ft (0.6-m) vertical and horizontal intervals

to provide a clearance of 11/2 in. (38 mm) from such wall or material. Such protection shall extend at least 12 in.

(300 mm) beyond the back, side, top, or any other part of the equipment, and the space between the sheet metal and

wall or combustible material shall be open on both sides and top and bottom to permit circulation of air.


PANEL RECOMMENDATION: Staff to review and develop a proposed committee input.

SECRETARY RECOMMENDATION: A revision is recommended to clarify the intent. The

section’s intent is provide minimum clearances for combustible materials applying to all appliances

(listed and unlisted) up to 2 ft above the cook top. The reference to 10.12.2 would eventually

accomplish this since it provides a minimum 18 in. clearance and refers to Table 10.2.3 for allowed

reductions. But it takes a bit of interpretation to get you there. The change for the 2002 edition

eliminated the two exceptions by rolling exception No. 1 into 10.12.2 and deleted exception No. 2 for a

reference to Table 10.2.3. The following committee input is proposed:

10.12.5 Combustible Material Adjacent to Cooking Top. Any portion of combustible material adjacent to a cooking top

section of a food service range, even though listed for close-to-wall installation, that is not shielded from the wall by a high

shelf, warming closet, and so on, shall be protected as specified in 10.12.2 for a distance of at least 2 ft (0.6 m) above the

surface of the cooking top. Listed and unlisted food service ranges shall be installed to provide a clearance to combustible

material of not less than 18 in. (460 mm) horizontally for a distance up to 2 ft (0.6) above the surfaced of the cooking top

where the combustible material is not completely shielded by high shelving, warming closet or other system. Reduced

combustible material clearances are permitted where protected in accordance with Table 10.2.3.

ISSUE: 10.15.1.2 – Figure to show vertical clearance.

BACKGROUND: A figure that shows the various clearances would help in understanding the intent of

the section.

89

ATTACHMENT C


10.15.1.2 Vertical Clearance above Cooking Top. Household cooking appliances shall have a vertical clearance

above the cooking top of not less than 30 in. (760 mm) to combustible material or metal cabinets. A minimum clearance

of 24 in. (610 mm) is permitted when one of the following is installed:

(1) The underside of the combustible material or metal cabinet above the cooking top is protected with not less than 1/4

in. (6 mm) insulating millboard covered with sheet metal not less than 0.0122 in. (0.3 mm) thick.

(2) A metal ventilating hood of sheet metal not less than 0.0122 in. (0.3 mm) thick is installed above the cooking top

with a clearance of not less than 1/4 in. (6 mm) between the hood and the underside of the combustible material or

metal cabinet, and the hood is at least as wide as the appliance and is centered over the appliance.

(3) A listed cooking appliance or microwave oven is installed over a listed cooking appliance and will conform to the

terms of the upper manufacturer’s installation instructions.

COMMITTEE ACTION/MOTION: Assigned to the Equipment Panel to add to Annex A. Diagram

below is from the ICC. Consider asking for permission or develop a new figure. Also, the arrows shown

should be moved to show distance from cook top (not side counters).

PANEL RECOMMENDATION: A public input item was received therefore a committee input is not

needed.

ISSUE: Side wall venting into screen enclosures.

BACKGROUND: NFPA 54, the National Fuel Gas Code, currently does not explicitly address installation

requirements for appliance sidewall vent terminations located in screened-in enclosures. There is some concern

that screen-in enclosures may impede the dispersion of combustion gases. There are many parameters that are, or

could be, important in determining how flue gas will disperse in the real world and what the limits might be for

safe venting in screened enclosures. These include: the appliance input rating, excess air, and efficiency which

determine the combustion gas flow rate, temperature, and composition; the design and location of the sidewall

vent terminal; the enclosure volume and screen mesh free area; and other factors such as wind speed and

direction, outdoor ambient temperature, nearby topology, the presence of barriers such as nearby buildings, trees,

and hills, the accumulation of lint from clothes dryers exhausting into the screen space(for dryer appliances).

90

ATTACHMENT C


The Fire Protection Research Foundation and AGA co-sponsored research regarding computer modeling for such

installations. The executive summary from the final report is as follows:

Based on the information obtained during the data collection effort and our staff’s expertise, a list of

parameters was compiled, from which the CFD modelling plan will be developed in collaboration with the

project technical panel. The goal of the modeling effort was to evaluate the sensitivity of exhaust gas dispersion within a screened

enclosure to several parameters – including the size of the enclosure, the porosity of the screened walls,

ambient and exhaust vent conditions. A total of 43 venting scenarios were simulated using the CFD software

FLACS. The CFD modeling results indicated that, within the range of conditions examined: Typical screen mesh porosities allow adequate air flow into the enclosure, to mix with and dilute the

exhaust stream to levels comparable with unobstructed venting conditions;

High screen blockage ratios (greater than approximately 75-85%) tend to result in increasing

accumulation of exhaust gases within the enclosure, particularly for smaller enclosure volumes;

Sidewall venting of gas appliances into tightly sealed areas (e.g., “winterized” enclosures) can result in

the accumulation of exhaust gases to dangerous levels within the entire enclosure;

The effect of direct vent appliances is negligible for typical screen mesh porosities;

Direct vent appliances present progressively higher hazard potential, when compared with remote intake

appliances, as the screen blockage ratio increases above approximately 75-85%. The above conclusions are based on simulations performed on a hypothetical enclosure with no furniture or

other objects inside, no vegetation or other obstructions outside and exposed to no wind. Even though the

general conclusions obtained from this study are not likely to change significantly with site-specific

parameters, the actual gas distribution patterns are expected to be sensitive to enclosure layout, wind

conditions, etc.. For the same reason, it is recommended that the results presented in this report be used with

an adequate margin of safety to account for site-specific variability.

COMMITTEE ACTION/MOTION: None – potential project as the result of committee indentified research.

PANEL RECOMMENDATION: A motion to restrict side wall venting into smaller screened enclosures failed.

The research computer modeling found that screens allow adequate air flow into the enclosure, to mix with and

dilute the exhaust stream to levels comparable with unobstructed venting conditions. While screen blockage

does not represent a hazard, the storage of furniture and other materials is likely to occur in screened-in areas,

such as a porch. These materials may potentially block or interfere with the free movement of air and exhaust

around direct vent terminations.

ISSUE: 13.2.27 & 13.2.30 – Duplication

BACKGROUND: Possible editorial item found during the 2012 edition publication review. Should

13.2.27 be deleted?

13.2.27 Interpolation. Interpolation shall be permitted in calculating capacities for vent dimensions that fall

between table entries.

13.2.30 Height entries. Where the actual height of a vent falls between entries in the height column of the

applicable table in Table 13.2(a) through Table 13.2(i) either of the following shall be used:

(1) Interpolation

91

ATTACHMENT C


(2) The lower appliance input rating shown in the table entries for FAN MAX and NAT MAX column values; and

the higher appliance input rating for the FAN MIN column values.



ISSUE: Annex B – Table reference corrections.

BACKGROUND: Editorial items identified during 2012 edition publication review. B.3.2 need to add

6.2(c) and (d); (k); (t); and (u). I sent this correction at the tale-end of the production process. Will need

to check final to see if change was or wasn’t able to be made. Also, parenthetical “see” statements in

B.3.2 and B.3.3 are only call-out to table. Want to describe?

Suggested changes:

NFPA published version:

B.3.2 Low Pressure Natural Gas Tables. Capacities for gas at low pressure [less than 2.0 psi (14 kPa gauge)] in

cubic feet per hour of 0.60 specific gravity gas for different sizes and lengths are shown in Table 6.2(a) through

Table 6.2(b d) for iron pipe or equivalent rigid pipe, in Table 6.2(h) through Table 6.2(j k) for smooth wall semi-

rigid tubing, and in Table 6.2(o) through Table 6.2(q) for corrugated stainless steel tubing, in Table 6.2(t) and Table

6.2(u) for polyethylene plastic pipe. Table 6.2(a) and Table 6.2(h) are based upon a pressure drop of 0.3 in. w.c. (75

Pa), whereas Table 6.2(b), Table 6.2(i), and Table 6.2(o) are based upon a pressure drop of 0.5 in. w.c. (125 Pa).

Table 6.2(j), Table 6.2(p), and Table 6.2(q) are special low-pressure applications based upon pressure drops greater

than 0.5 in. w.c. (125 Pa). In using these tables 6.2(j), 6.2(p), or 6.2(q), an allowance (in equivalent length of pipe)

should be considered for any piping run with four or more fittings (see Table B.3.2).

AGA published version:

B.3.2 Low Pressure Natural Gas Tables. Capacities for gas at low pressure [less than 2.0 psi (14 kPa gauge)] in

cubic feet per hour of 0.60 specific gravity gas for different sizes and lengths are shown in Table 6.2(a) through

Table 6.2(d) for iron pipe or equivalent rigid pipe, in Table 6.2(h) through Table 6.2(k) for smooth wall semi-rigid

tubing, and in Table 6.2(o) through Table 6.2(q) for corrugated stainless steel tubing, in Table 6.2(t) and Table

6.2(u) for polyethylene plastic pipe. Table 6.2(a) and Table 6.2(h) are based upon a pressure drop of 0.3 in. w.c.

(75 Pa), whereas Table 6.2(b), Table 6.2(i), and Table 6.2(o) are based upon a pressure drop of 0.5 in. w.c. (125

Pa). Table 6.2(j), Table 6.2(p), and Table 6.2(q) are special low-pressure applications based upon pressure drops

greater than 0.5 in. w.c. (125 Pa). In using these tables 6.2(j), 6.2(p), or 6.2(q), an allowance (in equivalent length

of pipe) should be considered for any piping run with four or more fittings (see Table B.3.2).



time.

ISSUE: Annex G: Recommended Procedures for Safety Inspection of an Existing Appliance Installation.

BACKGROUND: Annex G has not been updated in a number of years and may not contain adequate

information applicable to current appliance designs. The current Annex is only meant for central furnaces

92

ATTACHMENT C


and boilers. An updated Annex would be useful for fuel gas suppliers, weatherization programs, and home

inspectors. Annex G

Recommended Procedure for Safety

Inspection of an Existing Appliance

Installation

This annex is not a part of the requirements of this code but is

included for informational purposes only.

G.1 General The following procedure is intended as a guide to aid

in determining that an appliance is properly installed and is in a safe

condition for continuing use.

This procedure is intended for central furnace and boiler

installations, and may not be applicable to all installations. This

procedure should be performed prior to any attempt to modify the

appliance or the installation. If it is determined a condition that

could result in unsafe operation exists, shut off the appliance and

advise the owner of the unsafe condition.

The following steps should be followed in making the safety

inspection:

(1) Conduct a test for gas leakage.

(2) Visually inspect the venting system for proper size and

horizontal pitch, and determine that there is no blockage,

restriction, leakage, corrosion, or other deficiencies that could

cause an unsafe condition.

(3) Shut off all gas to the appliance, and shut off any other fuel gas

burning appliance within the same room. Use the shutoff valve

in the supply line to each appliance.

(4) Inspect burners and crossovers for blockage and corrosion.

(5) Furnace Installation: Inspect the heat exchanger for cracks,

openings, or excessive corrosion.

(6) Applicable only to boilers: Inspect for evidence of water or

combustion product leaks.

(7) Close all building doors and windows and all doors between

the space in which the appliance is located and other spaces of

the building that can be closed. Turn on any clothes dryers.

Turn on any exhaust fans, such as range hoods and bathroom

exhausts, so they will operate at maximum speed. Do not

operate a summer exhaust fan. Close fireplace dampers. If,

after completing Steps 8 through 13, it is believed sufficient

combustion air is not available, refer to Section 9.3 of this

code.

(8) Place the appliance being inspected in operation. Follow the

lighting instructions. Adjust the thermostat so the appliance

will operate continuously.

(9) Determine that the pilot(s), where provided, is burning

properly and that the main burner ignition is satisfactory, by

interrupting and re-establishing the electrical supply to the

appliance in any convenient manner. If the appliance is

equipped with a continuous pilot(s), test all pilot safety

device(s) to determine whether it is operating properly by

extinguishing the pilot(s) when the main burner(s) is off and

determining, after 3 minutes, that the main burner gas does not

flow upon a call for heat. If the appliance is not provided with

a pilot(s), test for proper operation of the ignition system in

accordance with the appliance manufacturer's lighting and

operating instructions.

(10) Visually determine that the main burner gas is burning

properly (i.e., no floating, lifting, or flashback). Adjust the

primary air shutter as required. If the appliance is equipped

with high and low flame controlling or flame modulation,

check for proper main burner operation at low flame.

(11) Test for spillage at the draft hood relief opening after 5

minutes of main burner operation. Use the flame of a match or

candle or smoke.

(12) Turn on all other fuel gas burning appliances within the same

room so they will operate at their full inputs. Follow lighting

instructions for each appliance.

(13) Repeat Steps 10 and 11 on the appliance being inspected.

(14) Return doors, windows, exhaust fans, fireplace dampers, and

any other fuel gas burning appliance to their previous

conditions of use.

(15) Furnace Installations: Check both the limit control and the fan

control for proper operation. Limit control operation can be

checked by blocking the circulating air inlet or temporarily

disconnecting the electrical supply to the blower motor and

determining that the limit control acts to shut off the main

burner gas.

(16) Boiler Installations:.Verity that the water pumps are in

operating condition. Test low water cutoffs, automatic feed

controls, pressure and temperature limit controls, and relief

valves in accordance with the manufacturer's

recommendations to determine that they are in operating

condition.

COMMITTEE ACTION/MOTION: None – potential project suggested by the Chair.

PANEL RECOMMENDATION: Hold for October full committee meeting discussion. The Panel

was made aware that the American Gas Association is developing a draft rewrite of Annex G.

93

AGENDA ITEM 6 – PROJECT STATUS

ISSUE: H.2 (1)(b) – Revise example?

BACKGROUND: Editorial items identified during 2012 edition publication review. This is not a good

example because using .60 ACH gives same result as 25 ft3 / 1000 BTUH. Can we rework it?

H.2 (1)

(b) Draft-hood equipped water heater: For structures that the air infiltration rate is known, Section 9.3.2.2 permits

the use of the equation in 9.3.2.2 (1) to determine the required volume for a draft hood equipped appliance.

Section 9.3.2.2 (3) limits the use of the equation to air change rates equal to or less than 0.60 ACH. While the

house was determined to have a 0.65 ACH, 0.60 is used to calculate the required volume. Using the equation

in 9.3.2.2 (1), the required volume for the 40,000 Btu/hr water heater is calculated as follows:

hrBtu

hrBtuft

/000,1

/000,40

60.0

21 3

= 1,400 ft3


PANEL RECOMMENDATION: Staff to review and draft a revision if needed.

SECRETARY RECOMMENDATION: No recommendation. There are three examples that illustrate

the standard method (which assumes .50 ACH) and two KAIR methods; one for a higher ACH (.65)

and a very low ACH (.30). I cannot duplicate the concern that two of the examples result in the same

25 ft3 /1000 requirement.

94

TO BE APPROVED

NFPA 54 / ASC Z223

NATIONAL FUEL GAS CODE COMMITTEE MEETING MINUTES

November 15-16, 2011, San Antonio, TX

95

B L A N K P A G E

96

1. Call to Order: Tom Crane welcomed members and guests and called the meeting to order at 9:00 a.m.

2. Introductions: Around-the-table self-introductions were made. The meeting participants were given the opportunity to review the AGA Antitrust Compliance Guidelines and were made aware of the fire alarm and exits. See Attachment A for attendance.


4. Committee Review of Membership: a) Z223 & NFPA 54 Membership Rosters: The membership rosters were reviewed. b) Z223 & NFPA 54 Membership Balance: ASC Z223 Membership by interest category

was reviewed and is in balance in accordance with the Committee’s procedures. The

NFPA 54 committee’s balance is the responsibility of the NFPA Standards Council and is in compliance.

c) Z223 New Member Election: The memberships of Angelone, Antonov, and Lemoff were approved.

5. Approval of Committee Minutes: The 2010 October Minneapolis meeting minutes were approved as distributed.

6. Future Meeting Schedule: Future meeting schedule was reviewed and accepted as follows:

2015 EDITION PUBLIC INPUT (PROPOSALS) DUE BY JUNE 22, 2012 2012 MEETINGS: Date: ...................September 18-20, 2012 (Tuesday-Thursday) Meeting Type: ....Advisory Panel Meetings Purpose:..............Review public proposals on 2015 Edition and make recommendations Location: ............Savannah, GA Host: ...................National Fire Protection Association

Date: ...................October 16-18, 2012 (Tuesday-Thursday) Meeting Type: ....Full Committee Purpose:..............Review and take action on proposals & Panel recommendations Location .............Palm Springs, CA Host: ...................American Gas Association

COMMENTS DUE BY MAY 3, 2013

2013 MEETINGS: Date: ...................June 18-19, 2013 (Tuesday-Wednesday) Meeting Type: ....Full Committee Purpose:..............Review and take action on Public Comments Location .............To Be Determined Host: ...................National Fire Protection Association

2015 EDITION PUBLISHED SEPTEMBER 2014 No meetings are scheduled for 2015.

97

7. Panel Research Projects: The Fire Protection Research Foundation is undertaking three NFGC related projects: a) CSST Bonding:

BACKGROUND: The NFPA Standards Council released their decision regarding an appeal to have the National Electric Code adopt bonding requirements for CSST similar to NFGC requirements. Their decision questioned the adequacy of the NFGC bonding requirements and requested additional information. In response, the Fire Protection Research Foundation has opened a project to gather the needed information. The project has the cooperation of the CSST manufacturers and insurance industry. The NFGC Committee has always taken safety seriously and adopted its CSST bonding requirements with consideration of available safety information. RESEARCH PROJECT: The Fire Protection Research Foundation is currently undertaking a project to identify the justification for the CSST bonding requirements in the National Fuel Gas Code. CSST is required to be direct bonded to help protect it from near lightning strikes. The Committee is waiting for the first phase findings of the Fire Protection Research Foundation’s work and is available to assist depending upon the results. See Attachment B for CSST NFPA 54 Task Group’s October 25, 2011, teleconference notes. COMMITTEE DISCUSSION: The committee expressed interest in more than a yes/no answer to the question of the effectiveness of the #6 AWG bonding conductor that is currently in the standard. The project should explore what will work effectively (ie by varying the length of conductor, potentially its size) in the various hazard scenarios. The committee recommended that the selection of gas for the study be considered in terms of its compatibility/performance in comparison with natural gas. The committee questioned the need to do the task of the study associated with power fault currents. The evaluation of copper and black iron pipe was encouraged to provide some benchmark performance. The bonding of these pipes should be in accordance with code installation requirements. The Committee discussed at some length whether information on the performance of CSST in a direct strike scenario would be of interest. Concerns were expressed about understanding the numerical value of the surge associated with direct lightning and the overall lack of knowledge of the performance of other building components in response to direct strikes and determined by straw vote that this information is not of direct value in responding to the standards council directive on this issue. The Committee conducted a straw vote indicating unanimous support for the proposal scope as currently written. The Foundation will augment the project technical panel for the second phase of the project, should it proceed, to include the members of the NFPA 54 task force assigned to address this issue. The project should initiate before the end of the year; completion for early results should be targeted for mid June to meet the first draft closing date for proposals for the standard; the final deadline is August for a committee proposal for consideration in September. The Committee welcomes a presentation from the contractor at some point in the future.

b) Side Wall Venting into Screened-in Enclosures: The Committee considered for the 2009 and 2012 editions, but ultimately failed to approve, restrictions on side wall vent terminations located in screened-in porches and larger pool enclosures. The Committee does not have the necessary technical information to determine if the dispersion of vented

98

combustion gases is impacted and whether a safety concern exists. A number of interrelated factors would need to be examined including appliance input, enclosure size, and screen mesh size.

c) Combustion air requirements for large input appliances: The code’s combustion air requirements were developed primarily for residential non-power burner type appliances. Therefore, when the code’s requirements are applied to high input and power burner appliances they could result in excessively sized outdoor combustion air openings. For that reason engineered systems or calculations are often used. The committee would like to incorporate sizing criteria for these appliances as part of the code.

8. NFPA 56 PS: The secretary provided a presentation on the NFPA 56PS Standard for Fire and

Explosion Prevention During Cleaning and Purging of Flammable Gas Piping Systems. The provisional standard was developed under NFPA expedited procedures in response to the Kleen Energy power generation plant explosion and the U.S. Chemical Safety Board report and recommendations. The standard prohibits the use of flammable gas blows as a means of cleaning piping.

9. Panel Assignments and Standards Updates: The committee reviewed a variety of possible revisions that may become committee proposals for the 2015 edition. These revisions were identified during the development of the 2012 edition and placed on the meeting agenda. The Committee assigned each Advisory Panel the task of reviewing their topic specific proposals and to develop draft committee proposals in time for the October 2012 committee meeting. The assignments and committee actions/discussion are as shown in Attachment C.

10. New Business:

a) Provide an opportunity to the panels to review reference standard revisions.

b) Depressurization: FYI - IECC has adopted revisions that require a blower door test with a limited air change rate of 5 ACH. Measures to limit the air change rate can impact whether or not fuel-gas appliances can be installed.

11. Adjournment: Adjourned at 12:00 noon on Wednesday, November 16, 2011.

Respectfully Submitted,

Paul Cabot Secretary ASC Z223, NFPA 54

99

ATTACHMENT A

MEETING ATTENDANCE Members Company Thomas Crane, Chair ....... Crane Engineering Paul Cabot, Secretary ....... American Gas Association Hugo Aguilar .................... IAPMO Ed Angelone ..................... EJA Consultants LLC Denise Beach1 ................... National Fire Protection Association David Berning................... A.O. Smith Jim Brewer ........................ Magic Sweep Dan Buuck ........................ NAHB Ron Caudle ....................... Southern California Gas Company Sharon Coates ................... Arkansas L.P. Gas Board Mike Deegan..................... Clearwater Gas System Glen Edgar ........................ Selkirk Corporation Pennie Feehan ................... Feehan Consulting / CDA Alberto Fossa .................... MDJ Consulting Ronnie Ray Frazier ........... Atmos Energy Corporation Steen Hagensen ................ ENERVEX Gregg Gress ...................... International Code Council Patricio Himes .................. Asociacion Mexana de Distribuidores de Gas Lp Peter Holmes .................... Maine Fuel Board Ted Lemoff ....................... TLemoff Engineering James Osterhaus ............... Texas Railroad Commission Andrea Papageorge ........... AGL Resources Inc. Phillip Ribbs ..................... PHR Consultants Mike Romano ................... TECO Peoples Gas Jack Scanlon ..................... Rheem Manufacturing Thomas Stroud ................. Hearth Products and Barbecue Association Franklin Switzer ............... S-AFE Inc. Robert Wozniak ................ Underwriters Laboratories Inc. Guests Kathleen Almand .............. Fire Protection Foundation James Bell ......................... Pietro Fiorentini Gerald Davis ..................... Washington Gas Light David Edler ....................... Ward Manufacturing Mitchell Guthrie ............... Consulting Engineer / NFPA 780 Christian Hagensen ........... ENERVEX Mark Harris ....................... Titeflex Corp. Nicholas Meole ................. Pietro Fiorentini James Ranfone .................. American Gas Association Joe Rose ............................ Southern California Gas Company Art Weirauch .................... Omegaflex Matt Wilber ...................... Crane Engineering

1 NFPA Liaison to ASC Z223/NFPA 54 Staff

100

ATTACHMENT B

NFPA 54 CSST Task Group – October 25, 2011 Teleconference Notes

Attendance D. Beach P. Cabot G. Gress M. Guthrie R. Wozniak T. Lemoff T. Crane J. Tobias C. Mello K. Almand G. Steinman R. Frazier K. Almand reviewed the general background of the project and went through the phase I project development. K. Almand explained that the research foundation project panel approved going to a direct-bid for phase II with the phase I contractor, Seftim. Phase II proposal is direct continuation of phase I report, but provides more detail. Seftim is based in France and doesn’t have laboratory facilities, so identification of US testing

and modeling subcontractors is important. LTI, a lightning research contractor in Western Massachusetts, and modeling consultant will partner with Seftim. The NFPRF panel agrees that proposal is responsive to RFP and phase I report tasks. K. Almand outlined the comments raised to date by NFPRF panel members as follows: 1. One of the test series (#4) refers to performance of CSST in a direct lightning strike scenario. CSST manufacturers are not interested in funding tests of direct lightning strikes because a home lightning protection system is needed to address hazards of direct lightning strikes regardless of type of gas piping system. 2. Pass/Fail criteria not specifically identified. NFPRF Panel members have differing opinions. K. Almand asked the NFG-AAA task group for input on whether pass/fail criteria should be identified. 3. All CSST types that are manufactured in the US will be tested, but there are two different kinds of CSST. There are two proprietary products on the market that have “enhanced” jacket systems to provide electrical continuity. The testing program is

intended to be “blind” testing. Concern is how to test two “enhanced” products in a blind study. The result of this study should not be interpreted as product testing such as what would be done by a listing agency.

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ATTACHMENT B

NFPA 54 CSST Task Group – October 25, 2011 Teleconference Notes

As of right now, CSST manufacturers are committed to funding this work. The Lightning Safety Alliance has indicated some interest in possible funding of the project. IBHS and PERC have been contacted, but have not expressed any specific interest in participating or co-funding. After much discussion, the task group did not reach a consensus on the need to identify a pass/fail criteria or what that pass/fail criteria might be. The task group agreed that the comments to the NFPRF technical panel and the contractor should reemphasize that the testing program should be testing the efficacy of the bonding system required by NFPA 54, not just the material. The task group agreed to recommend adding black iron and/or copper pipe to testing program for comparison. Mr. Crane stated that the project will provide the data, and the pass/fail or acceptability criteria should become logically evident after testing is complete. After some discussion, the task group did not reach a consensus to support or insist upon the direct lightning strike test. While there was some support for a direct-strike test to assist the NFPA 780 committee, the task group conceded that the purpose of this testing program is to support NFPA 54 code development efforts, and this type of test is not really within the scope initially agreed upon. After much discussion, the task group was evenly divided on the issue of testing CSST products with their jackets intact. There is no requirement in the LC-1 listing standard that a jacket be provided and no guidance or manufacturer’s instructions regarding how much of the jacket should be removed for installation of the bonding system. The “black

jacket” products are not recognized by the listing standard at this time as providing

additional protection related to lightning or any other electrical hazards. Four task group participants were in favor of testing CSST with the outer jacket (yellow or black) completely removed. Mr. Tobias and Mr. Guthrie recommended testing both scenarios – completely removing the jacket and stripping back a portion of the jacket to reflect a “real-world” installation. Other participants did not express any opinion or

recommendation.

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ATTACHMENT C EQUIPMENT PANEL ASSIGNMENTS

ISSUE: Definitions not used in mandatory text. BACKGROUND: “Air Shutters” is not used until Annex G.

3.3.4 Air Shutter. An adjustable device for varying the size of the primary air inlet(s). COMMITTEE ACTION/MOTION: Secretary requested to assign to the appropriate advisory panel. ISSUE: 3.3.11.3 Low Pressure Boiler BACKGROUND: Possible editorial revision. NFPA 211 extracts the definition from NFPA 31 and is slightly different wording. TC should review definition in 31 and determine if source is acceptable.

3.3.11.3 Low-Pressure Boiler. A boiler for generating steam at gauge pressures not in excess of 15 psi (103 kPa) or for furnishing water at a maximum temperature of 250°F (121°C) at a maximum gauge pressure of 160 psi (1103 kPa). [211, 2006].

COMMITTEE ACTION/MOTION: Secretary requested to assign to the appropriate advisory panel. ISSUE: 3.3.19.1 Type 1 Clothes Dryer. BACKGROUND: Possible editorial revision. Use of “may or may not be” – should an add annex note be added about coin-operation?

3.3.19.1 Type 1 Clothes Dryer. Primarily used in family living environment. May or may not be coin-operated for public use.

COMMITTEE ACTION/MOTION: Secretary requested to assign to the appropriate advisory panel. ISSUE: Definitions not used in mandatory text. BACKGROUND: “Consumption” is not used until Annex B.

3.3.24 Consumption. The maximum amount of gas per unit of time, usually expressed in cubic feet per hour, or Btu per hour, required for the operation of the appliance or appliances supplied.

COMMITTEE ACTION/MOTION: Secretary requested to assign to the appropriate advisory panel. ISSUE: Definitions not used in mandatory text. BACKGROUND: “Design Certification” – not used in any part of document.

3.3.28 Design Certification. The process by which a product is evaluated and tested by an independent laboratory to affirm that the product design complies with specific requirements.


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ISSUE: Definitions not used in mandatory text. BACKGROUND: “Domestic laundry stove” – not used, but laundry stove is.

3.3.31 Domestic Laundry Stove. A fuel-gas burning appliance consisting of one or more open-top-type burners mounted on high legs or having a cabinet base.


10.14.1 Listed domestic hot plates and laundry stoves installed on combustible surfaces shall be set on their own legs or bases. They shall be installed with minimum horizontal clearances of 6 in. (150 mm) from combustible material.

10.14.2 Unlisted domestic hot plates and laundry stoves shall be installed with horizontal clearances to combustible material of not less than 12 in. (300 mm). Combustible surfaces under unlisted domestic hot plates and laundry stoves shall be protected in an approved manner.

10.14.3 The vertical distance between tops of all domestic hot plates and laundry stoves and combustible material shall be at least 30 in. (760 mm).

12.3.2 Appliances Not Required to be Vented. The following appliances shall not be required to be vented.

(1) Listed ranges

(2) Built-in domestic cooking units listed and marked for optional venting

(3) Listed hot plates and listed laundry stoves

COMMITTEE ACTION/MOTION: Secretary requested to assign to the appropriate advisory panel. ISSUE: Definitions not used in mandatory text. BACKGROUND: “Unit Heater” – all references in the document are generic “unit heater”. No use of

“high static pressure-type” or “low static pressure-type”. The two types of unit heaters addressed in the document are suspended and floor-mounted.


3.3.57.5.1 High-Static Pressure Unit Heater. A self-contained, automatically controlled, vented, appliance having integral means for circulation of air against 0.2 in. (15 mm) H2O or greater static pressure. 3.3.57.5.2 Low-Static Pressure Unit Heater. A self-contained, automatically controlled, vented, appliance, intended for installation in the space to be heated without the use of ducts, having integral means for circulation of air, normally by a propeller fan(s), and may be equipped with louvers or face extensions made in accordance with the manufacturers’

specifications. 10.26 Unit Heaters. 10.26.1 Support. Suspended-type unit heaters shall be safely and adequately supported with due consideration given to their weight and vibration characteristics. Hangers and brackets shall be of noncombustible material. 10.26.2 Clearance.

10.26.2.1 Suspended-Type Unit Heaters. Suspended-type unit heaters shall comply with the following requirements: (1) A listed unit heater shall be installed with clearances from combustible material of not less than 18 in. (460 mm)

at the sides, 12 in. (300 mm) at the bottom, and 6 in. (150 mm) above the top where the unit heater has an internal draft hood, or 1 in. (25 mm) above the top of the sloping side of a vertical draft hood. A unit heater listed for reduced clearances shall be installed in accordance with the manufacturer’s installation instructions.

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(2) Unlisted unit heaters shall be installed with clearances to combustible material of not less than 18 in. (460 mm). (3) Clearances for servicing shall be in accordance with the manufacturers’ recommendations contained in the

installation instructions. 10.26.2.2 Floor-Mounted-Type Unit Heaters. Floor-mounted-type unit heaters shall comply with the following requirements: (1) A listed unit heater shall be installed with clearances from combustible material at the back and one side only of

not less than 6 in. (150 mm). Where the flue gases are vented horizontally, the 6 in. (150 mm) clearance shall be measured from the draft hood or vent instead of the rear wall of the unit heater. A unit heater listed for reduced clearances shall be installed in accordance with the manufacturer’s installation instructions.

(2) Floor-mounted-type unit heaters installed on combustible floors shall be listed for such installation. (3) Combustible floors under unlisted floor-mounted unit heaters shall be protected in an approved manner. (4) Clearances for servicing shall be in accordance with the manufacturers’ recommendations contained in the

installation instructions. 10.26.3 Combustion and Circulating Air. Combustion and circulating air shall be provided in accordance with Section 9.3. 10.26.4 Ductwork. A unit heater shall not be attached to a warm air duct system unless listed and marked for such installation. 10.26.5 Installation in Commercial Garages and Aircraft Hangars. Unit heaters installed in garages for more than three motor vehicles or in aircraft hangars shall be of a listed type and shall be installed in accordance with 9.1.11 and 9.1.12.

COMMITTEE ACTION/MOTION: Secretary requested to assign to the appropriate advisory panel. ISSUE: Definitions not used in mandatory text. BACKGROUND: “Heating Value” – not used until Annex A.

3.3.58 Heating Value (Total). The number of British thermal units produced by the combustion, at constant pressure, of 1 ft3 (0.03 m3 ) of gas when the products of combustion are cooled to the initial temperature of the gas and air, when the water vapor formed during combustion is condensed, and when all the necessary corrections have been applied.

A.5.4.2 To obtain the cubic feet per hour of gas required, divide the Btu per hour rating by the Btu per cubic ft heating value of the gas supplied. The heating value of the gas can be obtained from the local gas supplier. TABLE A.11.1.1 Note: To convert to Btu per hour, multiply the cubic feet per hour of gas by the Btu per cubic foot heating value of the gas used.

B.3.1 General. To obtain the cubic feet per hour of gas required, divide the total Btu/hr input of all appliances by the average Btu heating value per cubic foot of the gas. The average Btu per cubic foot of the gas in the area of the installation can be obtained from the serving gas supplier.

B.7.1 Example 1 - Longest Length Method. Determine the required pipe size of each section and outlet of the piping system shown in Figure B.7.1, with a designated pressure drop of 0.5 in. w.c. (125 Pa) using the Longest Length Method. The gas to be used has 0.60 specific gravity and a heating value of 1000 Btu/ft3 (37.5 MJ/m3). 7.2 Example 2 - Hybrid or Dual Pressure Systems. Determine the required CSST size of each section of the piping system shown in Figure B.7.2, with a designated pressure drop of 1 psi (7 kPa) for the 2 psi (14 kPa) section and 3 in. w.c. (0.75 kPa) pressure drop for the 13 in. w.c. (2.49 kPa) section. The gas to be used has 0.60 specific gravity and a heating value of 1000 Btu/ft3 (37.5 MJ/ m3). B.7.3 Example 3 - Branch Length Method. Determine the required semi-rigid copper tubing size of each section of the piping system shown in Figure B.7.3, with a designated pressure drop of 1 in. w.c. (250 Pa) (using the

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Branch Length Method). The gas to be used has 0.60 specific gravity and a heating value of 1,000 Btu/ft3 (37.5 MJ/m3). B.7.4 Example 4 - Modification to Existing Piping System Determine the required CSST size for Section G (retrofit application) of the piping system shown in Figure B.7.4, with a designated pressure drop of 0.5 in. w.c. (125 Pa) using the branch length method. The gas to be used has 0.60 specific gravity and a heating value of 1,000 Btu/ft3 (37.5 MJ/m3).

COMMITTEE ACTION/MOTION: Secretary requested to assign to the appropriate advisory panel. ISSUE: Definitions not used in mandatory text. BACKGROUND: “Orifice” is used throughout, but what is a “spud”?

3.3.74 Orifice. The opening in a cap, spud, or other device whereby the flow of gas is limited and through which the gas is discharged to the burner.

J.1.33 Orifice Spud. A removable plug or cap containing an orifice that permits adjustment of the flow of gas either by substitution of a spud with a different sized orifice or by the motion of a needle with respect to it.

COMMITTEE ACTION/MOTION: Secretary requested to assign to the appropriate advisory panel. ISSUE: 3.3.76 Parking Structure BACKGROUND: Editorial items identified during 2012 edition publication review. The “primary”

source of this definition is NFPA 88A. Change extract tag to source? 3.3.76 Parking Structure. A building, structure, or portion thereof used for the parking, storage, or both, of motor vehicles. [1, 2009]

COMMITTEE ACTION/MOTION: Secretary requested to assign to the appropriate advisory panel. ISSUE: Definitions not used in mandatory text. BACKGROUND: “Thermostat” – we only refer to a room temperature thermostat, we don’t break it

down by thermostat type. 3.3.101 Thermostat.

3.3.101.1 Electric Switch Type Thermostat. A device that senses changes in temperature and controls electrically, by means of separate components, the flow of gas to the burner(s) to maintain selected temperatures.

3.3.101.2 Integral Gas Valve Type Thermostat. An automatic device, actuated by temperature changes, designed to control the gas supply to the burner(s) in order to maintain temperatures between predetermined limits, and in which the thermal actuating element is an integral part of the device: (1) graduating thermostat, a thermostat in which the motion of the valve is approximately in direct proportion to the effective motion of the thermal element induced by temperature change; (2) snap-acting thermostat, a thermostat in which the thermostatic valve travels instantly from the closed to the open position, and vice versa.

9.7.3 Electrical Circuit. The electrical circuit employed for operating the automatic main gas-control valve, automatic pilot, room temperature thermostat, limit control, or other electrical devices used with the appliances shall be in accordance with the wiring diagrams certified or approved by the original appliance manufacturer.

9.8 Room Temperature Thermostats.

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9.8.1 Locations. Room temperature thermostats shall be installed in accordance with the manufacturers' instructions.

9.8.2 Drafts. Any hole in the plaster or panel through which the wires pass from the thermostat to the appliance being controlled shall be sealed so as to prevent drafts from affecting the thermostat.

10.6.2 Installation. A decorative appliance for installation in a vented fireplace shall be installed only in a vented fireplace having a working chimney flue and constructed of noncombustible materials. These appliances shall not be thermostatically controlled.

10.11.1 Installation. The installation of floor furnaces shall comply with the following requirements:

(3) Thermostats controlling floor furnaces shall not be located in a room or space which can be separated from the room or space in which the register of the floor furnace is located.

COMMITTEE ACTION/MOTION: Secretary requested to assign to the appropriate advisory panel. ISSUE: 8.1.3.3, 8.1.3.4, and 8.1.3.5 – Question of intent BACKGROUND: Editorial items identified during 2012 edition publication review. Scope of document only covers piping systems up to appliance connections, not appliances or equipment. Why do we have requirements regarding pressure testing of connected equipment and appliances? Why wouldn’t they

be isolated for all pressure testing and leak checks if they are not covered in the scope of the document?

8.1.3.3 Appliances and equipment that are not to be included in the test shall be either disconnected from the piping or isolated by blanks, blind flanges, or caps. Flanged joints at which blinds are inserted to blank off other equipment during the test shall not be required to be tested.

8.1.3.4 Where the piping system is connected to appliances or equipment designed for operating pressures of less than the test pressure, such appliances or equipment shall be isolated from the piping system by disconnecting them and capping the outlet(s).

8.1.3.5 Where the piping system is connected to appliances or equipment designed for operating pressures equal to or greater than the test pressure, such appliances or equipment shall be isolated from the piping system by closing the individual appliance or equipment shutoff valve(s).

COMMITTEE ACTION/MOTION: Secretary requested to assign to the appropriate advisory panel. ISSUE: 9.3.2 – Editorial BACKGROUND: Editorial items identified during 2012 edition publication review. Multiple requirements in one paragraph does not comply with the NFPA Manual of Style. Can we separate? Also, can the third sentence be moved to the annex?

9.3.2 Indoor Combustion Air. The required volume of indoor air shall be determined in accordance with method 9.3.2.1 or 9.3.2.2 except that where the air infiltration rate is known to be less than 0.40 ACH, the method 9.3.2.2 shall be used. The total required volume shall be the sum of the required volume calculated for all appliances located within the space. Rooms communicating directly with the space in which the appliances are installed through openings not furnished with doors, and through combustion air openings sized and located in accordance with 9.3.2.3, are considered a part of the required volume.


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ISSUE: 9.4.4 – Question of intent BACKGROUND: Editorial items identified during 2012 edition publication review. Is this really necessary? Can it be reworded to be consistent with Manual of Style?

9.4.4 Additional Provisions. Also see 9.1.23, 9.2.1, and 12.4.3.

COMMITTEE ACTION/MOTION: Secretary requested to assign to the appropriate advisory panel. ISSUE: 10.12.5 – Question of intent BACKGROUND: Editorial items identified during 2012 edition publication review. Section10.12.2 (and by extension 10.2.3) does not appear to provide the type of protection referenced here. I think this was a reference to the old exception in 10.12.2 that was removed in the 2002 edition. Is this correct? Do we need to pull this in to 10.12.5 somehow?

10.12.5 Combustible Material Adjacent to Cooking Top. Any portion of combustible material adjacent to a cooking top section of a food service range, even though listed for close-to-wall installation, that is not shielded from the wall by a high shelf, warming closet, and so on, shall be protected as specified in 10.12.2 for a distance of at least 2 ft (0.6 m) above the surface of the cooking top. From 2002 NFGC: 10.12.5 Combustible Material Adjacent to Cooking Top. Exception No. 2: Unlisted floor-mounted food service equipment shall be permitted to be installed in rooms, but not in partially enclosed areas such as alcoves, with reduced clearance of 6 in. (150 mm) to combustible material provided the wall or combustible material is protected by sheet metal not less than 0.0152 in. (0.4 mm) thick, fastened with noncombustible spacers that are spaced at not less than 2-ft (0.6-m) vertical and horizontal intervals to provide a clearance of 11/2 in. (38 mm) from such wall or material. Such protection shall extend at least 12 in. (300 mm) beyond the back, side, top, or any other part of the equipment, and the space between the sheet metal and wall or combustible material shall be open on both sides and top and bottom to permit circulation of air.

COMMITTEE ACTION/MOTION: Secretary requested to assign to the appropriate advisory panel. ISSUE: 10.15.1.2 – Figure to show vertical clearance. BACKGROUND: A figure that shows the various clearances would help in understanding the intent of the section.

10.15.1.2 Vertical Clearance above Cooking Top. Household cooking appliances shall have a vertical clearance above the cooking top of not less than 30 in. (760 mm) to combustible material or metal cabinets. A minimum clearance of 24 in. (610 mm) is permitted when one of the following is installed:

(1) The underside of the combustible material or metal cabinet above the cooking top is protected with not less than 1/4 in. (6 mm) insulating millboard covered with sheet metal not less than 0.0122 in. (0.3 mm) thick.

(2) A metal ventilating hood of sheet metal not less than 0.0122 in. (0.3 mm) thick is installed above the cooking top with a clearance of not less than 1/4 in. (6 mm) between the hood and the underside of the combustible material or metal cabinet, and the hood is at least as wide as the appliance and is centered over the appliance.

(3) A listed cooking appliance or microwave oven is installed over a listed cooking appliance and will conform to the terms of the upper manufacturer’s installation instructions.

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COMMITTEE ACTION/MOTION: Assigned to the Equipment Panel to add to Annex A. Diagram below is from the ICC. Consider asking for permission or develop a new figure. Also, the arrows shown should be moved to show distance from cook top (not side counters).

ISSUE: H.2 (1)(b) – Revise example? BACKGROUND: Editorial items identified during 2012 edition publication review. This is not a good example because using .60 ACH gives same result as 25 ft3 / 1000 BTUH. Can we rework it?

H.2 (1)

(b) Draft-hood equipped water heater: For structures that the air infiltration rate is known, Section 9.3.2.2 permits the use of the equation in 9.3.2.2 (1) to determine the required volume for a draft hood equipped appliance. Section 9.3.2.2 (3) limits the use of the equation to air change rates equal to or less than 0.60 ACH. While the house was determined to have a 0.65 ACH, 0.60 is used to calculate the required volume. Using the equation in 9.3.2.2 (1), the required volume for the 40,000 Btu/hr water heater is calculated as follows:

hrBtu

hrBtuft

/000,1

/000,40

60.0

21 3

= 1,400 ft3


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ATTACHMENT C PIPING PANEL ASSIGNMENTS

ISSUE: Definitions not used in mandatory text. BACKGROUND: “Hot taps” – not used in any part of the document.

3.3.60 Hot Taps. Piping connections made to operating pipelines or mains or other facilities while they are in op-ration. The connection of the branch piping to the operating line and the tapping of the operating line are done while it is under gas pressure.

COMMITTEE ACTION/MOTION: Secretary requested to assign to the appropriate advisory panel. ISSUE: 5.6.4 – Use of PVC as an acceptable gas piping material. BACKGROUND: The 2012 code provided a reference to PVC as an acceptable gas pressure piping material under the old ASTM D2513 standard in section 5.6.4.1.2 . PVC has been used for such purposes in the past.

5.6* Acceptable Piping Materials and Joining Methods. 5.6.1 General.

5.6.1.1AcceptableMaterials. Materials used for piping systems shall comply with the requirements of this chapter or shall be acceptable to the authority having jurisdiction.

5.6.4.1.2 Plastic pipe, tubing and fittings, other than polyethylene, shall be identified and conform to the 2008 edition of ASTM D2513, Standards Specification for Thermoplastic Gas Pressure Pipe Tubing and Fittings. Pipe to be used shall be marked “gas” and “ASTM D2513”.

COMMITTEE ACTION/MOTION: Committee approved to piping panel for consideration of revisions. The committee noted the following:

PVC is not listed for use with natural gas or LP PVC is not used for pressurized applications Fittings are not approved.

The panel should consider a prohibition of PVC as a fuel gas piping material. Also consider deleting “or

shall be acceptable to the authority having jurisdiction” in section 5.6.1.1. ISSUE: Polyamide Product Standard BACKGROUND: Beach email 12/29/10: Some ANSI news regarding polyamide piping for fuel gas applications – BSR/ASTM WK20984‐201x. This is just something we probably want the piping panel to monitor during development. I assume this is in response to the change to ASTM 2513 to cover PE only.

5.6.4 Plastic Pipe, Tubing, and Fittings.

5.6.4.1 Standard and Marking.

5.6.4.1.1 Polyethylene plastic pipe, tubing, and fittings used to supply fuel shall conform to ASTM D2513, Standard Specification for Polyethylene (PE) Gas Pressure Pipe, Tubing, and Fittings. Pipe to be used shall be marked “gas” and “ASTM D2513.”

5.6.4.1.2 Plastic pipe, tubing and fittings, other than polyethylene, shall be identified and conform to the 2008 edition of ASTM D2513, Standards Specification for Thermoplastic Gas Pressure Pipe Tubing and Fittings. Pipe to be used shall be marked “gas” and “ASTM D2513”.

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COMMITTEE ACTION/MOTION: Assigned to the piping panel for review and develop a possible committee proposal. ISSUE: 5.7.2.2 – Possible obsolete coverage/term. BACKGROUND: Editorial items identified during 2012 edition publication review. Reference to coal bins really necessary in the 21st century?

5.7.2.2 Gas meters shall not be placed where they will be subjected to damage, such as adjacent to a driveway, under a fire escape, in public passages, halls, coal bins, or where they will be subject to excessive corrosion or vibration.

COMMITTEE ACTION/MOTION: Secretary requested to assign to the appropriate advisory panel. ISSUE: 5.10.1.1 – Is the term “equipment” correct. BACKGROUND: Lemoff email 2/5/10: Is equipment correct?

5.10 Back Pressure Protection. 5.10.1 Where to Install.

5.10.1.1 Protective devices shall be installed as close to the equipment as practical where the design of equipment connected is such that air, oxygen, or standby gases could be forced into the gas supply system.

COMMITTEE ACTION/MOTION: Approved to piping panel. Committee is recommending that “or

appliance” be added to after “equipment” to cover all applications. ISSUE: Table 6.2(c) & Table 6.2(d) – Revise by rounding to three significant digits. BACKGROUND: The two new 2012 edition tables were not rounded to three significant digits as was done for all remaining pipe sizing tables. In reviewing the existing tables the secretary found that the 4 inch column contained the pipe capacities for 3 ½ inch diameter piping. The Secretary has drafted two replacement tables as follows:

Table 6.2(c) Schedule 40 Metallic Pipe




Pipe Size (in.)

Nominal: 1/2 3/4 1 11/4 11/2 2 21/2 3 4

Actual ID: 0.622 0.824 1.049 1.380 1.610 2.067 2.469 3.068 4.026 Length (ft) Capacity in Cubic Feet of Gas per Hour

10 454 949 1,790 3,670 5,500 10,600 16,900 29,800 43,678 60,800 20 312 652 1,230 2,520 3,780 7,280 11,600 20,500 30,020 41,800 30 250 524 986 2,030 3,030 5,840 9,310 16,500 24,107 33,600 40 214 448 844 1,730 2,600 5,000 7,970 14,100 20,632 28,700 50 190 397 748 1,540 2,300 4,430 7,060 12,500 18,286 25,500

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60 172 360 678 1,390 2,090 4,020 6,400 11,300 16,569 23,100 70 158 331 624 1,280 1,920 3,690 5,890 10,400 15,243 21,200 80 147 308 580 1,190 1,790 3,440 5,480 9,690 14,181 19,800 90 138 289 544 1,120 1,670 3,230 5,140 9,090 13,305 18,500

100 131 273 514 1,060 1,580 3,050 4,860 8,580 12,568 17,500 125 116 242 456 936 1,400 2,700 4,300 7,610 11,139 15,500 150 105 219 413 848 1,270 2,450 3,900 6,890 10,093 14,100 175 96 202 380 780 1,170 2,250 3,590 6,340 9,285 12,900 200 90 188 353 726 1,090 2,090 3,340 5,900 8,638 12,000 250 80 166 313 643 964 1,860 2,960 5,230 7,656 10,700 300 72 151 284 583 873 1,680 2,680 4,740 6,937 9,660 350 66 139 261 536 803 1,550 2,470 4,360 6,382 8,890 400 62 129 243 499 747 1,440 2,290 4,050 5,937 8,270 450 58 121 228 468 701 1,350 2,150 3,800 5,570 7,760 500 55 114 215 442 662 1,280 2,030 3,590 5,262 7,330 550 52 109 204 420 629 1,210 1,930 3,410 4,997 6,960 600 50 104 195 400 600 1,160 1,840 3,260 4,767 6,640 650 47 99 187 384 575 1,110 1,760 3,120 4,565 6,360 700 46 95 179 368 552 1,060 1,690 3,000 4,386 6,110 750 44 92 173 355 532 1,020 1,630 2,890 4,225 5,890 800 42 89 167 343 514 989 1,580 2,790 4,080 5,680 850 41 86 162 332 497 957 1,530 2,700 3,949 5,500 900 40 83 157 322 482 928 1,480 2,610 3,828 5,330 950 39 81 152 312 468 901 1,440 2,540 3,718 5,180

1000 38 79 148 304 455 877 1,400 2,470 3,616 5,040 1100 36 75 141 289 432 833 1,330 2,350 3,435 4,780 1200 34 71 134 275 412 794 1,270 2,240 3,277 4,560 1300 33 68 128 264 395 761 1,210 2,140 3,138 4,370 1400 31 65 123 253 379 731 1,160 2,060 3,014 4,200 1500 30 63 119 244 366 704 1,120 1,980 2,904 4,050 1600 29 61 115 236 353 680 1,080 1,920 2,804 3,910 1700 28 59 111 228 342 658 1,050 1,850 2,714 3,780 1800 27 57 108 221 331 638 1,020 1,800 2,631 3,670 1900 27 56 105 215 322 619 987 1,750 2,555 3,560 2000 26 54 102 209 313 602 960 1,700 2,485 3,460

Table 6.2(d) Schedule 40 Metallic Pipe




Pipe Size (in.)

Nominal: 1/2 3/4 1 11/4 11/2 2 21/2 3 4

Actual ID: 0.622 0.824 1.049 1.380 1.610 2.067 2.469 3.068 4.026 Length (ft) Capacity in Cubic Feet of Gas per Hour

10 660 1,380 2,600 5,340 8,000 15,400 24,600 43,400 63,551 88,500 20 454 949 1,790 3,670 5,500 10,600 16,900 29,800 43,678 60,800 30 364 762 1,440 2,950 4,410 8,500 13,600 24,000 35,075 48,900 40 312 652 1,230 2,520 3,780 7,280 11,600 20,500 30,020 41,800 50 276 578 1,090 2,240 3,350 6,450 10,300 18,200 26,606 37,100 60 250 524 986 2,030 3,030 5,840 9,310 16,500 24,107 33,600

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70 230 482 907 1,860 2,790 5,380 8,570 15,100 22,178 30,900 80 214 448 844 1,730 2,600 5,000 7,970 14,100 20,632 28,700 90 201 420 792 1,630 2,440 4,690 7,480 13,200 19,359 27,000

100 190 397 748 1,540 2,300 4,430 7,060 12,500 18,286 25,500 125 168 352 663 1,360 2,040 3,930 6,260 11,100 16,207 22,600 150 153 319 601 1,230 1,850 3,560 5,670 10,000 14,684 20,500 175 140 293 553 1,140 1,700 3,270 5,220 9,230 13,509 18,800 200 131 273 514 1,056 1,580 3,050 4,860 8,580 12,568 17,500 250 116 242 456 936 1,400 2,700 4,300 7,610 11,139 15,500 300 105 219 413 848 1,270 2,450 3,900 6,890 10,093 14,100 350 96 202 380 780 1,170 2,250 3,590 6,340 9,285 12,900 400 90 188 353 726 1,090 2,090 3,340 5,900 8,638 12,000 450 84 176 332 681 1,020 1,960 3,130 5,540 8,105 11,300 500 80 166 313 643 964 1,860 2,960 5,230 7,656 10,700 550 76 158 297 611 915 1,760 2,810 4,970 7,271 10,100 600 72 151 284 583 873 1,680 2,680 4,740 6,937 9,660 650 69 144 272 558 836 1,610 2,570 4,540 6,643 9,250 700 66 139 261 536 803 1,550 2,470 4,360 6,382 8,890 750 64 134 252 516 774 1,490 2,380 4,200 6,148 8,560 800 62 129 243 499 747 1,440 2,290 4,050 5,937 8,270 850 60 125 235 483 723 1,390 2,220 3,920 5,745 8,000 900 58 121 228 468 701 1,350 2,150 3,800 5,570 7,760 950 56 118 221 454 681 1,310 2,090 3,690 5,410 7,540

1000 55 114 215 442 662 1,280 2,030 3,590 5,262 7,330 1100 52 109 204 420 629 1,210 1,930 3,410 4,997 6,960 1200 50 104 195 400 600 1,160 1,840 3,260 4,767 6,640 1300 47 99 187 384 575 1,110 1,760 3,120 4,565 6,360 1400 46 95 179 368 552 1,060 1,690 3,000 4,386 6,110 1500 44 92 173 355 532 1,020 1,630 2,890 4,225 5,890 1600 42 89 167 343 514 989 1,580 2,790 4,080 5,680 1700 41 86 162 332 497 957 1,530 2,700 3,949 5,500 1800 40 83 157 322 482 928 1,480 2,610 3,828 5,330 1900 39 81 152 312 468 901 1,440 2,540 3,718 5,180 2000 38 79 148 304 455 877 1,400 2,470 3,616 5,040

COMMITTEE ACTION/MOTION: Approved as a Committee Proposal subject to Piping Panel review. ISSUE: 7.1.2.1 (A) – Awkward language BACKGROUND: Editorial items identified during 2012 edition publication review. This language is awkward. Can we do any better?

7.1.2.1 Cover Requirements. Underground piping systems shall be installed with a minimum of 12 in. (300 mm) of cover.

(A) The minimum cover shall be increased to 18 in. (460 mm) if external damage to the pipe or tubing from external forces is likely to result.

(B) Where a minimum of 12 in. (300 mm) of cover cannot be provided, the pipe shall be installed in conduit or bridged (shielded).


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ISSUE: 7.3.3 & 7.3.4 – Penetration of walls, floors or partitions. BACKGROUND: Beach email 12/29/10: I am suddenly getting phone calls on 7.3.3 and 7.3.4. Specifically, I’ve spoken several times to an architect and a gas supplier working on the same job. The gas supplier is interpreting 7.3.3 and the first sentence of 7.3.4 to mean that tubing is prohibited from penetrating walls, floors or partitions of any kind, not just the solid kind. I can’t seem to convince him otherwise, so maybe we can look at the wording of 7.3.4 or add a positive paragraph clearly stating that tubing shall be permitted to penetrate walls, floors or partitions.

7.3.3 Piping in Partitions. Concealed gas piping shall not be located in solid partitions.

7.3.4 Tubing in Partitions. This provision shall not apply to tubing that pierces walls, floors, or partitions. Tubing installed vertically and horizontally inside hollow walls or partitions without protection along its entire concealed length shall meet the following requirements:

(1) A steel striker barrier not less than 0.0508 in. (1.3 mm) thick, or equivalent, is installed between the tubing and the finished wall and extends at least 4 in. (100 mm) beyond concealed penetrations of plates, fire stops, wall studs, and so on.

(2) The tubing is installed in single runs and is not rigidly secured. COMMITTEE ACTION/MOTION: Approved to Piping Panel for review and possible revised language. ISSUE: 7.12.5.1 – Question on use of terms. BACKGROUND: Editorial items identified during 2012 edition publication review. Are “large” and

“small” really necessary here? 7.12.5.1* Location. The gas-mixing machine shall be located in a large well-ventilated area or in a small detached building or cutoff room provided with room construction and explosion vents in accordance with sound engineering principles. Such rooms or below finished ground level installations shall have adequate positive ventilation.

COMMITTEE ACTION/MOTION: Secretary requested to assign to the appropriate advisory panel. ISSUE: 7.12.6 – Question on use of terms. BACKGROUND: Editorial items identified during 2012 edition publication review. Should the term “practicable” be deleted.

7.12.6 Use of Automatic Firechecks, Safety Blowouts, or Backfire Preventers. Automatic firechecks and safety blowouts or backfire preventers shall be provided in piping systems distributing flammable air-gas mixtures from gas-mixing machines to protect the piping and the machines in the event of flashback, in accordance with the following:

(1)* Approved automatic firechecks shall be installed upstream as close as practicable to the burner inlets following the firecheck manufacturers’ instructions.

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COMMITTEE ACTION/MOTION: Secretary requested to assign to the appropriate advisory panel. ISSUE: 8.1.1.5 – Replace “telltale” with “double block and bleed system” BACKGROUND: To use current technical language as utilized in the NFPA 56PS standard.

8.1.1.5 A piping system shall be tested as a complete unit or in sections. Under no circumstances shall a valve in a line be used as a bulkhead between gas in one section of the piping system and test medium in an adjacent section, unless two valves are installed in series with a valved “tell-tale” located between these valves. A valve shall not be subjected to the test pressure unless it can be determined that the valve, including the valve closing mechanism, is designed to safely withstand the test pressure.

COMMITTEE ACTION/MOTION: Approved the following as a Committee Proposal and assigned the Piping Panel to draft a reason and a diagram in Annex A.

8.1.1.5* A piping system shall be tested as a complete unit or in sections. Under no circumstances shall a valve in a line be used as a bulkhead between gas in one section of the piping system and test medium in an adjacent section, unless two valves are installed in series with a valved “telltale” a double block and bleed valve system is installed located between these valves. A valve shall not be subjected to the test pressure unless it can be determined that the valve, including the valve closing mechanism, is designed to safely withstand the test pressure. A.8.1.1.5 Add diagram & note why the term was revised.

ISSUE: 8.1.1.7 – Add reference to NFPA 56 on pipe cleaning. BACKGROUND: Consider additional cleaning technical requirements for piping covered by the code.

8.1 Pressure Testing and Inspection. 8.1.1* General.

8.1.1.1 Prior to acceptance and initial operation, all piping installations shall be visually inspected and pressure tested to determine that the materials, design, fabrication, and installation practices comply with the requirements of this

code. 8.1.1.2 Inspection shall consist of visual examination, during or after manufacture, fabrication, assembly, or pressure tests. 8.1.1.3 Where repairs or additions are made following the pressure test, the affected piping shall be tested. Minor repairs and additions are not required to be pressure tested, provided that the work is inspected and connections are tested with a noncorrosive leak-detecting fluid or other leak-detecting methods approved by the authority having jurisdiction. 8.1.1.4 Where new branches are installed to new appliance(s), only the newly installed branch(es) shall be required to be pressure tested. Connections between the new piping and the existing piping shall be tested with a noncorrosive leak-detecting fluid or approved leak-detecting methods. 8.1.1.5 A piping system shall be tested as a complete unit or in sections. Under no circumstances shall a valve in a line be used as a bulkhead between gas in one section of the piping system and test medium in an adjacent section, unless two valves are installed in series with a valved “tell-tale” located between these valves. A valve shall not be subjected to the test pressure unless it can be determined that the valve, including the valve closing mechanism, is designed to safely withstand the test pressure. 8.1.1.6 Regulator and valve assemblies fabricated independently of the piping system in which they are to be installed shall be permitted to be tested with inert gas or air at the time of fabrication. 8.1.1.7 Prior to testing, the interior of the pipe shall be cleared of all foreign material.

COMMITTEE ACTION/MOTION: Approved the following Committee Proposal and assigned the Piping Panel to consider additional revisions as follows:

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8.1.1.7* Prior to testing, the interior of the pipe shall be cleared of all foreign material.

A.8.1.1.7 Fuel gas piping operating above 125 psi shall be cleaned in accordance with NFPA 56, Standard for Fire and Explosion Prevention During Cleaning and Purging of Flammable

Gas Piping Systems. Panel should consider:

Review and correct as necessary the reference to NFPA 56 in the new A.8.1.1.7 Add a sub title to 8.1.1.2 Relocate 8.1.1.2 to after 8.1.1.7 Prohibit the blowing of fuel gas as a cleaning means Add additional cleaning coverage for larger pipe diameters and higher pressure systems consistent

with NFPA 56. ISSUE: 8.1 – Use of gas detector. BACKGROUND: Beach/Cabot email 1/21/11: Hi Paul, This is weird to me. 8.1 is for the pressure test only. The test media are limited to air, nitrogen, carbon dioxide or inert gas. So how would you detect a leak during the pressure test using a gas detector if there is no fuel gas? And what difference would a source of ignition make if fuel gas hasn’t been

introduced to the system? I could understand it if this was under 8.2.3 where you are looking for leaks after the gas has been turned on, but it just doesn’t make sense in the pressure test. Can we ask the

appropriate panel to review, or is there some other logic here that I’m not getting? Hi Denise, It took a bit of digging and I have a reason why that section was originally in that location ‐ but you’re

right, Section 8.1.5.2 needs either to be relocated and/or reworded. The 1996 edition (and earlier editions) had an exception that allowed the use of fuel gas as the pressure test medium for 0.5 psig systems. When that was dropped for the 1999 edition, section 8.1.5.2 requirements were not revised to reflect that change. Since various gases are allowed to be used during the pressure test a “gas detector” in section 8.1.5.2

could be used as long as it appropriate for the test pressure gas that is being used. Also, the code does not provide coverage for how to find leaks under section 8.2 leak check. That is where both a combustive gas detector could be used and were flames should not. I think we need either relocate 8.1.5.2 to a new section (and rewrite it) to make it applicable to both the pressure test and leak check (with a reference to it in 8.1 and 8.2) OR rewrite 8.1.5.2 to be consistent with 8.1 requirements and add a new section in 8.2 applicable to leak checks.

8.1.5 Detection of Leaks and Defects.

8.1.5.1 The piping system shall withstand the test pressure specified without showing any evidence of leakage or other defects. Any reduction of test pressures as indicated by pressure gauges shall be deemed to indicate the presence of a leak unless such reduction can be readily attributed to some other cause.

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8.1.5.2 The leakage shall be located by means of an approved gas detector, a noncorrosive leak detection fluid, or other approved leak detection methods. Matches, candles, open flames, or other methods that provide a source of ignition shall not be used.

8.1.5.3 Where leakage or other defects are located, the affected portion of the piping system shall be repaired or replaced and retested.

8.2 Piping System, Appliance and Equipment Leakage Check.

8.2.1 Test Gases. Leak checks using fuel gas shall be permitted in piping systems that have been pressure tested in accordance with Section 8.1.

8.2.2 Turning Gas On. During the process of turning gas on into a system of new gas piping, the entire system shall be inspected to determine that there are no open fittings or ends and that all valves at unused outlets are closed and plugged or capped.

8.2.3* Leak Check. Immediately after the gas is turned on into a new system or into a system that has been initially restored after an interruption of service, the piping system shall be checked for leakage. Where leakage is indicated, the gas supply shall be shut off until the necessary repairs have been made.

8.2.4 Placing Appliances and Equipment in Operation. Appliances and equipment shall not be placed in operation until after the piping system has been checked for leakage in accordance with 8.2.3, the piping system is purged in accordance with 8.3 and, connections to the appliance are checked for leakage.

COMMITTEE ACTION/MOTION: Approved to Piping Panel for review and possible revised language. ISSUE: Figure 9.6.7 – gas flow arrows on sediment trap figure BACKGROUND: Lemoff email 3/30/12: To Ted: This is Sean McIntyre from KMS in California. I have a code Interpretation Question on NFPA 54‐ 1999 & 2002. In 2002, pg 54‐32 section 8.5.7 on Sediment Trap says skipping ahead to the sentence; the sediment trap shall be either a “Tee fitting with a capped nipple in the bottom outlet as

illustrated in Figure 8.5.7” or other device recognized as an effective sediment trap. The way I

understand the purpose of the Tee is to “interrupt” the flow of the gas in a way where any sediment that

may be in the flow path, drops into the “capped nipple” to prevent reaching the appliance the gas line is serving. Your diagram is showing the gas entering the top of the Tee and exiting the Bull. I have been piping gas fired equipment for 30 years and have piped some this way as shown, and many more the opposite way where I supply the “Bull” on the Tee and exit the Top of the Tee and have a 3” or longer

capped nipple in the bottom of the Tee. I read the above sentence in 8.5.7 as addressing the Capped nipple ONLY and see Nothing as to direction of Gas Flow. Can you help me with this? I have a Plumbing Designer who insists the picture shown is the “ONLY” way you can pipe a gas appliance.

Thank You, I look forward to your help with a response. From Ted: This is in response to your questions on NPFA 54, National Fuel Gas Code, 1999 and 2002 editions, on sediment traps. I note that the 2009 edition has essentially the same requirement. The requirement in NFPA 54-2002 in paragraph states: 9.6.7 Sediment Trap. Where a sediment trap is not incorporated as a part of the appliance, a sediment trap shall be installed downstream of the appliance shutoff valve as close to the inlet of the appliance as practical at the time of appliance installation. The sediment trap shall be either a tee fitting with a capped nipple in the bottom outlet as illustrated in Figure 9.6.7 or other device recognized as an effective sediment trap. Illuminating appliances, ranges, clothes dryers, decorative appliances for installation in vented fireplaces, gas fireplaces, and outdoor

117


grills shall not be required to be so equipped. Note the underlined text which states what constitutes a sediment trap, and the reference to Figure 9.6.7 which illustrates the requirement. This is the only reference to Figure 9.6.7 in NFPA 54, and it specifically refers only to the construction of the trap. Figure 9.6.7, in addition to illustrating the assembly of the trap from the components specified, provides a flow direction. As the flow direction is not referred to in paragraph 9.6.7, it is not part of the code requirement. I thank you for bringing this to my attention, and I will make the committee aware of this. COMMITTEE ACTION/MOTION: Assigned to the Piping Panel to consider the following:

Show additional flow directions Include new diagrams showing installation options

ISSUE: 7.12.5.1 – Question on use of terms. BACKGROUND: Editorial items identified during 2012 edition publication review. B.3.2 need to add 6.2(c) and (d); (k); (t); and (u). I sent this correction at the tale-end of the production process. Will need to check final to see if change was or wasn’t able to be made. Also, parenthetical “see” statements in

B.3.2 and B.3.3 are only call-out to table. Want to describe? Suggested changes: NFPA published version:

B.3.2 Low Pressure Natural Gas Tables. Capacities for gas at low pressure [less than 2.0 psi (14 kPa gauge)] in cubic feet per hour of 0.60 specific gravity gas for different sizes and lengths are shown in Table 6.2(a) through Table 6.2(b d) for iron pipe or equivalent rigid pipe, in Table 6.2(h) through Table 6.2(j k) for smooth wall semi-rigid tubing, and in Table 6.2(o) through Table 6.2(q) for corrugated stainless steel tubing, in Table 6.2(t) and Table 6.2(u) for polyethylene plastic pipe. Table 6.2(a) and Table 6.2(h) are based upon a pressure drop of 0.3 in. w.c. (75 Pa), whereas Table 6.2(b), Table 6.2(i), and Table 6.2(o) are based upon a pressure drop of 0.5 in. w.c. (125 Pa). Table 6.2(j), Table 6.2(p), and Table 6.2(q) are special low-pressure applications based upon pressure drops greater than 0.5 in. w.c. (125 Pa). In using these tables 6.2(j), 6.2(p), or 6.2(q), an allowance (in equivalent length of pipe) should be considered for any piping run with four or more fittings (see Table B.3.2).

AGA published version:

B.3.2 Low Pressure Natural Gas Tables. Capacities for gas at low pressure [less than 2.0 psi (14 kPa gauge)] in cubic feet per hour of 0.60 specific gravity gas for different sizes and lengths are shown in Table 6.2(a) through Table 6.2(d) for iron pipe or equivalent rigid pipe, in Table 6.2(h) through Table 6.2(k) for smooth wall semi-rigid tubing, and in Table 6.2(o) through Table 6.2(q) for corrugated stainless steel tubing, in Table 6.2(t) and Table 6.2(u) for polyethylene plastic pipe. Table 6.2(a) and Table 6.2(h) are based upon a pressure drop of 0.3 in. w.c. (75 Pa), whereas Table 6.2(b), Table 6.2(i), and Table 6.2(o) are based upon a pressure drop of 0.5 in. w.c. (125 Pa). Table 6.2(j), Table 6.2(p), and Table 6.2(q) are special low-pressure applications based upon pressure drops greater than 0.5 in. w.c. (125 Pa). In using these tables 6.2(j), 6.2(p), or 6.2(q), an allowance (in equivalent length of pipe) should be considered for any piping run with four or more fittings (see Table B.3.2).


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ATTACHMENT C VENTING PANEL ASSIGNMENTS

ISSUE: Consistent use of terms. BACKGROUND: Possible editorial item found during the 2012 edition publication review. “Flue gases”, “products of combustion”, and “vent gases” are all used to refer to the gases being vented. Can we pick one and use it consistently throughout this section? Also, how can regulator vent be a sub-definition of vent? A regulator vent does not vent flue gases.

3.3.106 Vent. A passageway used to convey flue gases from appliances or their vent connectors to the outdoors.

3.3.106.1 Common Vent. That portion of a vent or chimney system that conveys products of combustion from more than one appliance.

3.3.106.2 Gas Vent. A passageway composed of listed factory-built components assembled in accordance with the manufacturer’s installation instructions for conveying vent gases from appliances or their vent connectors to the outdoors.

3.3.106.2.1 Gas Vent, Special Type. Gas vents for venting listed Category II, III, and IV appliances.

3.3.106.2.2 Gas Vent, Type B. A vent for venting listed gas appliances with draft hoods and other Category I appliances listed for use with Type B gas vents. ,

3.3.106.2.3 Gas Vent, Type B-W. A vent for venting listed wall furnaces.

3.3.106.2.4 Gas Vent, Type L. A vent for venting appliances listed for use with Type L vents and appliances listed for use with Type B gas vents.

3.3.106.3 Regulator Vent. The opening in the atmospheric side of the regulator housing permitting the in and out movement of air to compensate for the movement of the regulator diaphragm.

COMMITTEE ACTION/MOTION: Secretary requested to assign to the appropriate advisory panel. ISSUE: Definitions not used in mandatory text. BACKGROUND: Thermally and mechanically actuated automatic vent damper device – only automatic vent damper is really used. There is a reference to an electric vent damper, but not electrically operated automatic vent damper.


3.3.29.5.1 Automatic Vent Damper Device. A device that is intended for installation in the venting system, in the outlet of or downstream of the appliance draft hood, of an individual automatically operated appliance and that is designed to automatically open the venting system when the appliance is in operation and to automatically close off the venting system when the appliance is in a standby or shutdown condition.

3.3.29.5.2 Electrically Operated, Automatic Vent Damper Device. An automatic vent damper device that employs electrical energy to control the device.

3.3.29.5.3 Mechanically Actuated, Automatic Vent Damper Device. An automatic vent damper device dependent for operation upon the direct application or transmission of mechanical energy without employing any type of energy conversion.

3.3.29.5.4 Thermally Actuated, Automatic Vent Damper Device. An automatic vent damper device dependent for operation exclusively on the direct conversion of the thermal energy of the vent gases into mechanical energy.

119

ATTACHMENT C VENTING PANEL ASSIGNMENTS

COMMITTEE ACTION/MOTION: Secretary requested to assign to the appropriate advisory panel. ISSUE: 13.2.27 & 13.2.30 – Duplication BACKGROUND: Possible editorial item found during the 2012 edition publication review. Should 13.2.27 be deleted?

13.2.27 Interpolation. Interpolation shall be permitted in calculating capacities for vent dimensions that fall between table entries.

13.2.30 Height entries. Where the actual height of a vent falls between entries in the height column of the applicable table in Table 13.2(a) through Table 13.2(i) either of the following shall be used:

(1) Interpolation

(2) The lower appliance input rating shown in the table entries for FAN MAX and NAT MAX column values; and the higher appliance input rating for the FAN MIN column values.


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NOTES:

____________________________________________________________________________ 1. 2013-2015 Meeting Schedule - page 123_________________________________________ 2. Need for Adviosry Panel Meetings - page 125_____________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________

121

B L A N K

122


SUBJECT: Proposed 2013-2015 Meetings: ASC Z223/NFPA 54 Committee

The ASC Z223 and NFPA 54 committees meet jointly to maintain and develop the National Fuel

Gas Code. For your planning purposes the National Fuel Gas Code Committee’s 2013-2015

preliminary meeting schedule is proposed as follows:

2015 EDITION: COMMENTS DUE BY MAY 3, 2013

2013 MEETINGS:

Date: ...................June 18-19, 2013 (Tuesday-Wednesday)

Meeting Type: ....Full Committee

Purpose:..............Review and take action on Public Comments

Location .............To Be Determined

Host: ...................National Fire Protection Association

2015 EDITION: PUBLISHED SEPTEMBER 2014

2014 MEETINGS:

Date: ...................November 18-19, 2014 (Tuesday-Wednesday)

Meeting Type: ....Full Committee

Purpose:..............Complete Unfinished Business &Planning on 2018 Edition

Location .............To Be Determined

Host: ...................American Gas Association

Timely meeting notices will be sent to you as each meeting date approaches. Meeting

information will also be available on the AGA and NFPA websites. Please contact Paul Cabot

with any questions or comments you may have at 202.824.7312 or [email protected].

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SUBJECT: Need for Advisory Panel Meetings

Historically, the committee’s advisory panels meet to prescreen the public input (proposals) and

provide their recommendations for full committee consideration and action. This function is

useful when there is a high number of public input (proposals) and committee projects. The

following are the number of public input (proposals) and committee projects considered by the

panels for the last 4 cycles:

Edition Public Input (Proposals) & Committee Proposals

2006 124 (PI) + 32 (CP) = 156

2009 84 (PI) + 26(CP) = 110

2012 91 (PI) + 53 (CP) = 144

2015 65 (PI) + 32 (CP) = 97

Does the committee still wish to hold advisory panel meetings to prescreen public input?

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NOTES:

____________________________________________________________________________ 1. Cross Reference Table: Log # to PI # - page 129.___________________________________ 2. Public input items not acted upon - page 135.______________________________________ 3. Pulbic input items acted upon and panel generated drafts - page 161.___________________ ____________________________________________________________________________ Note: Public input and advisory generated draft revisions will be taken in chapter-section___ order starting with Chapter 1. Definitions in Chapter 3 that are assoicated with a later chapter_ revision are typcially held until the main revision item is addressed. ___________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________

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128

CROSS-REFERENCE TABLE

Log# to PI #

The data entry log numbers used during the panel meeting are assigned a corresponding public input (PI)

number. The PI # designation for each public input item becomes the official designation for the

committee ballot and the first public review draft.

129

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130

Prop # Log#Comm.Action

Tech.Comm. Section

Sort ListingSeq# ActivaArt Supp.

Find CP's

PI #1 Entire Document- ( ):54- NFG-AAA ActiveA2014 PI #6

7 Entire Document- ( ):54- NFG-AAA ActiveA2014 PI #1

18 2.3.2- ( ):54- NFG-AAA ActiveA2014 PI #22


24 3.3.5 Anode- ( ):54- NFG-AAA ActiveA2014 PI #32

44 3.3.6.8 and 3.3.6.9- ( ):54- NFG-AAA ActiveA2014 PI #46

23 3.3.18 Cathodic Protection- ( ):54- NFG-AAA ActiveA2014 PI #31

28 3.3.51 Gases- ( ):54- NFG-AAA ActiveA2014 PI #66

19 3.3.64 Leak Check- ( ):54- NFG-AAA ActiveA2014 PI #25

13 3.3.67.1 Combustible Material- ( ):54- NFG-AAA ActiveA2014 PI #17

15 3.3.67.2 Noncombustible Material- ( ):54- NFG-AAA ActiveA2014 PI #19

27 3.3.88.4 Monitoring Regulator- ( ):54- NFG-AAA ActiveA2014 PI #65

58 3.3.106.2- ( ):54- NFG-AAA ActiveA2014 PI #60

45 4.3.1(3)- ( ):54- NFG-AAA ActiveA2014 PI #47

16 4.4 (New)- ( ):54- NFG-AAA ActiveA2014 PI #20

2 5.6.1- ( ):54- NFG-AAA ActiveA2014 PI # 4

2a 5.6.8.4- ( ):54- NFG-AAA ActiveA2014 PI #5

46 5.6.8.4(1)- ( ):54- NFG-AAA ActiveA2014 PI #48

47 5.6.8.4(8)- ( ):54- NFG-AAA ActiveA2014 PI #49

48 5.6.8.4(9) (New)- ( ):54- NFG-AAA ActiveA2014 PI #50




32 5.9.2.1(1) and (6)- ( ):54- NFG-AAA ActiveA2014 PI #70

33 5.9.2.3 (New)- ( ):54- NFG-AAA ActiveA2014 PI #71

36 5.12.1 (New)- ( ):54- NFG-AAA ActiveA2014 PI #38

39 5.13.1 and 5.13.2 (New)- ( ):54- NFG-AAA ActiveA2014 PI #39

57 Table 6.2(c) and (d)- ( ):54- NFG-AAA ActiveA2014 PI #59


25 7.1.3 and 7.1.3.1- ( ):54- NFG-AAA ActiveA2014 PI #33

Page 1A2014Cycle

131

pcabot

Rectangle


Tech.Comm. Section


Find CP's

PI #6 7.1.3 and 7.1.3.1 (New)- ( ):54- NFG-AAA ActiveA2014 PI #10







54 7.3.2(1)- ( ):54- NFG-AAA ActiveA2014 PI #56



43 7.13.1 and 7.13.2- ( ):54- NFG-AAA ActiveA2014 PI #43


3 7.13.3- ( ):54- NFG-AAA ActiveA2014 PI # 11



21 9.1.x (New)- ( ):54- NFG-AAA ActiveA2014 PI #27







12 10.24.1 through 10.24.3- ( ):54- NFG-AAA ActiveA2014 PI #16

10 Table 12.5.1- ( ):54- NFG-AAA ActiveA2014 PI #24

59a Table 12.5.1- ( ):54- NFG-AAA ActiveA2014 PI #64


58a 12.5.2- ( ):54- NFG-AAA ActiveA2014 PI #61

58b 12.7.3.3- ( ):54- NFG-AAA ActiveA2014 PI #62

59 12.8- ( ):54- NFG-AAA ActiveA2014 PI #63

34 A.3.3.51 (New)- ( ):54- NFG-AAA ActiveA2014 PI #72

Page 2A2014Cycle

132

pcabot

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Tech.Comm. Section


Find CP's

PI #14 A.3.3.67.1- ( ):54- NFG-AAA ActiveA2014 PI #18

17 A.4.4 (New)- ( ):54- NFG-AAA ActiveA2014 PI #21


35 A.5.9.2(3) (New)- ( ):54- NFG-AAA ActiveA2014 PI #73


65 A.10.3.7.4 (New)- ( ):54- NFG-AAA ActiveA2014 PI #36

42 A.10.15.1.2 (New)- ( ):54- NFG-AAA ActiveA2014 PI #42

61 C.3- ( ):54- NFG-AAA ActiveA2014 PI #14

5 L.2.5- ( ):54- NFG-AAA ActiveA2014 PI #9

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B L A N K

134

Public Input Not Acted Upon by the Panels

The advisory panels did not take an action on the following Public Input (PI) items and are therefore

being forwarded to the full committee without a recommendation. These items will be discussed in

chapter section sequence as the committee reviews the code in starting with Chapter 1 (definitions

associated with later chapter revisions are typically held until the main revision is discussed).

135

B L A N K

136

Public Input No. 6-NFPA 54-2012 [ Chapter NFPA ]

When making the gas connection to a building supply system, one should not use a flexiblegas line or Quick Connect device that has been previously used in another location. NewQuick Connect and Flex devices should be used at the time of installation, even if theequipment is used and arrived with the hose and fittings, connected.

Statement of Problem and Substantiation for Public Input

Many of the Z21 and Z83 standards Technical Advisory Groups as well as the Z21/83 Technical Committee have been struggling with this issue for several years. Of concern is How to warn and Where to place the warning. The biggest concern is for used equipment. The standards community does not feel that it is recommended to “drag” along Quick Connect systems from one site to another. We are recommending that a Quick disconnect device not be re-used in a different installation after some undetermined use in another location. We are concerned that warnings in manuals or on labels will be lost, by the time they are needed. I recently commented to the ANSI Z21.69/CSA 6.16 “Call For Comment”. That comment brought the suggestion that I make the proposal to this committee. My comments were; Comment: I agree that gas connectors should not be reused. However, I don't believe that instructions in an installation manual, which in all probability will not be available to a second or third installer, is the place to make the warning. I believe that this is an issue for the National Fuel Gas Code. All plumbers in the U.S. should be aware that standard installation practice requires a new gas quick connect connector when installing a new or used piece of equipment. Proposed Revision: Forward this requirement to the National Fuel Gas Code. TAG Response: The TAG agreed with your comment and agreed that you should submit your comment to the National Fuel Gas Code Committee for consideration. I am hopeful that this proposal will be given consideration by the committee.

Submitter Information Verification

Submitter Full Name:Terry Wiseman

Organization: Vulcan-Hart Co.

Affilliation: NAFEM Z83.11 TAG Chair Z21.101 TAG Z21/83 Technical Comm. Alternate

Submittal Date: Thu Mar 29 13:11:56 EDT 2012

Copyright Assignment

I, Terry Wiseman, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in

copyright in this Public Input (including both the Proposed Change and the Statement of Problem and Substantiation). I

understand and intend that I acquire no rights, including rights as a joint author, in any publication of the NFPA in w hich this

Public Input in this or another similar or derivative form is used. I hereby w arrant that I am the author of this Public Input and

that I have full pow er and authority to enter into this copyright assignment.

By checking this box I aff irm that I am Terry Wiseman, and I agree to be legally bound by the above Copyright Assignment

and the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic

signature that w ill, upon my submission of this form, have the same legal force and effect as a handw ritten signature

137

Public Input No. 8-NFPA 54-2012 [ Section No. 2.3.5 ]

2.3.5 UL Publications.

Underwriters Laboratories Inc., 333 Pfingsten Road, Northbrook, IL 60062-2096, www.ul.com.

ANSI/UL 651, Schedule 40 and 80 Rigid PVC Conduit and Fittings, 2005, Revised 20102011 .


Update referenced standard to most recent edition as indicated.


Submitter Full Name:John Bender

Organization: Underwriters Laboratories Inc.

Submittal Date: Wed Apr 18 12:56:50 EDT 2012


I, John Bender, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in





By checking this box I aff irm that I am John Bender, and I agree to be legally bound by the above Copyright Assignment



138

Public Input No. 32-NFPA 54-2012 [ New Section after 3.3.4 ]

Add a new section to read:

3.3.5 Anode. An assembly consisting of a magnesium or zinc ingot or other chemical connected bywire to an underground metal piping system.


These code changes are necessary in order to provide requirements for cathodic protection for buried coated steel piping, including service risers other than "anodeless risers". This will improve the safety of buried steel piping, by requiring cathodic protection, thus minimizing premature failures due to corrosion and making the NFPA 54 Code consistent with the Code of Federal Regulations Title 49, Part 192.


Submitter Full Name:Frank Volgstadt

Organization: Volgstadt & Associates,Inc.

Submittal Date: Fri Jun 22 09:57:29 EDT 2012


I, Frank Volgstadt, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in





By checking this box I aff irm that I am Frank Volgstadt, and I agree to be legally bound by the above Copyright Assignment



139

Public Input No. 31-NFPA 54-2012 [ New Section after 3.3.17.5.1 ]


3.3.18 Cathodic Protection. A procedure by which anunderground metallic pipe is protected againstcorrosion.





Organization: Volgstadt & Associates, Inc.











140


5.6.10 Flanges.

All cast iron and steel pipe flanges shall comply with ANSI/ASME B16.1, Gray Iron PipeFlanges and Flanged Fittings, Class 25, 125, and 250; ANSI/ASME B16.20, Metallic Gasketsfor Pipe Flanges, Ring Joint Spiral Wound and Jacketed; or MSS SP-6, Standard Finishes forContact Faces of Pipe Flanges and Connecting-End Flanges of Valves and Fittings. Thepressure–temperature ratings shall equal or exceed that required by the application.

5.6.10.1 Flange Facings.

Standard facings shall be permitted for use under this code. Where 150 psi (1034 kPa) steelflanges are bolted to Class 125 cast-iron flanges, the raised face on the steel flange shall beremoved.

5.6.10.2 Lapped Flanges.

Lapped flanges shall be used only aboveground or in exposed locations accessible forinspection.


The two standards that define dimensions for pipe flanges and flanged fittings are ANSI/ASME B16.1, which applies to cast iron flanges, and ANSI/ASME B16.5, which applies to steel flanges and flanged fittings. ANSI/ASME B16.5 is another ANSI Standard, which should be permitted as a flange connection for gas piping.


Submitter Full Name:Kevin Carlisle

Organization: Karl Dungs, Inc.

Submittal Date: Mon Jul 02 07:53:14 EDT 2012


I, Kevin Carlisle, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in





By checking this box I aff irm that I am Kevin Carlisle, and I agree to be legally bound by the above Copyright Assignment




141

5.9.1 General.

Overpressure protection devices shall be provided and properly adjusted to prevent thepressure in the piping system from exceeding that rated value that would cause unsafeoperation of any connected and properly adjusted appliances.

5.9.1.1

The requirements of this section shall be met and a piping system deemed to haveoverpressure protection where a service or line pressure regulator plus one other device areinstalled such that the following occur:

(1) Each device limits the pressure to a value that does not exceed the maximum workingpressure of the downstream system.

(2) The individual failure of either device does not result in overpressure of the downstreamsystem.

5.9.1.2

The pressure regulating, limiting, and relieving devices shall be maintained, inspectionprocedures shall be devised or instrumentation installed to detect failures or malfunctions ofsuch devices, and replacements or repairs shall be made.

5.9.1.3

A pressure relieving or limiting device shall not be required where the following conditionsexist:

(1) The gas does not contain materials that could seriously interfere with the operation of theservice or line pressure regulator.

(2) The operating pressure of the gas source is 60 psi (414 kPa) or less.

(3) The service or line pressure regulator has all of the following design features orcharacteristics:

(a) Pipe connections to the service or line regulator do not exceed 2 in. (50 mm)nominal diameter.

(b) The regulator is self-contained with no external static or control piping.

(c) The regulator has a single port valve with an orifice diameter no greater than thatrecommended by the manufacturer for the maximum gas pressure at the regulatorinlet.

(d) The valve seat is made of resilient material designed to withstand abrasion of thegas, impurities in the gas, and cutting by the valve and to resist permanentdeformation where it is pressed against the valve port.

(e) The regulator is capable, under normal operating conditions, of regulating thedownstream pressure within the necessary limits of accuracy and of limiting thedischarge pressure under no-flow conditions to not more than 150 percent of thedischarge pressure maintained under flow conditions.


Current language does not inform or require the installer that an OPD may need special adjustment to prevents the downstream components or appliances from having too much gas pressure should the line pressure or service regulator fail. Rated value is the critical value. This value, stamped on all equipment, defines clearly the requirement. A value that would cause "unsafe operation" is ambiguous.














Public Input No. 69-NFPA 54-2012 [ Section No. 5.9.1.3 ]

5.9.1.3

A pressure relieving or limiting device shall not be required where the following conditionsexist:

(1) The gas does not contain materials that could seriously interfere with the operation of theservice or line pressure regulator and there is a gas filter or gas strainer mountedupstream .

(2) The operating pressure of the gas source is 60 psi (414 kPa) or less provided all thedownstream components and piping are rated for at least 60 PSI .

(3) The service or and line pressure regulator has all of the following design features orcharacteristics:

(a) Pipe connections to the service or line regulator do not exceed 2 in. (50 mm)nominal diameter.

(b)

(c) The regulator is self-contained with no external static or control piping.

(d)

(e) The

regulator has a single port

(f) valve

with an orifice diameter no greater than that recommended by the manufacturer for themaximum gas pressure at the regulator inlet.

(g) The valve seat is made of resilient material designed to withstand abrasion of thegas, impurities in the gas, and cutting by the valve and to resist permanentdeformation where it is pressed against the valve port.

(h) The regulator is capable, under normal operating conditions, of regulating thedownstream pressure within the necessary limits of accuracy and of limiting thedischarge pressure under no-flow conditions to not more than 150 percent of thedischarge pressure maintained under flow conditions.

(f) The failure of any diaphragm needed for regulation leads to an outlet pressure condition thatis equal to or lower than the regulator's setpoint under flow and no flow conditions.

(g) The mechanical failure of the regulating disc of the regulator leads to an outlet pressurecondition that is equal to or lower than the regulator's setpoint. under flow and no flowconditions.


143

The above provisions seem to provide exceptions to 5.9.1.1, which requires "a service or line pressure regulator plus one other device". It therefore permits the installation not to install the second device under certain conditions, however, some of the conditions can easily lead to an overpressure condition of the second device required in 5.9.].1 is not installed. The proposal removes those provisions that can lead to potentially serious, hazardous conditions associated with too much pressure to the downstream piping. In additional, the safely of tile system relics on some degree of redundancy, and therefore, the conditions should apply to the service regulator and line regulator. Additional justification: 5.9.1.3(1) This is not attainable without a gas filter immediately upstream of the device. Gas may be clean for some time, but anytime new piping is added, or there is maintenance on the service gas piping, there is a high potential for having debris entering the gas. 5.9.1.3 (2) This only is OK if the all the downstream components are actually rated for at least 60 PSI. 5.9.1.3(3) The most common cause of an overpressure condition downstream is either the failure of a regulating diaphragm or the mechanical failure of the regulating disc. These two provisions need to be added if the overpressure device is permitted to be removed from the gas piping. 5.9.1.3(3) (a) Remove this provision since it is too broadly written. The size of the regulator is not a determining factor to prevent an OPD or all regulators. Pipe sizes less than 2" can also have overpressure conditions. 5.9.1.3(3) (a) Remove this provision since it is too broadly written. This does not preclude and overpressure condition from occurring. What matters is the how the orifice of the service or line regulator prevents the outlet pressure from exceeding a certain value, not how the orifice is rated for the maximum gas pressure at the regulator inlet.














144


5.9.2.1

Pressure relieving or pressure limiting devices shall be one of the following:

(1) Spring-loaded, full capacity relief device

(2) Pilot-loaded back pressure regulator used as a relief valve designed so that failure of thepilot system or external control piping causes the regulator relief valve to open

(3) A monitoring regulator installed in series with the service or line pressure regulator

(4) A series regulator installed upstream from the service or line regulator and set tocontinuously limit the pressure on the inlet of the service or line regulator to themaximum working pressure of the downstream piping system

(5) An automatic shutoff device installed in series with the service or line pressure regulatorand set to shut off when the pressure on the downstream piping system reaches themaximum working pressure or some other predetermined pressure less than themaximum working pressure. This device shall be designed so that it will remain closeduntil manually reset.

(6) A liquid seal, full capacity relief device that can be set to open accurately andconsistently at the desired pressure


Added verbiage clarifies the difference between a monitor regulator and a series regulator.














145

Public Input No. 71-NFPA 54-2012 [ New Section after 5.9.2.2 ]

Add new text to read as follows:5.9.2.3 Token relief valves and internal token relief valves shall not be Dennitted to be used as a deviceto comply with 5.9.2.1.
















146


7.1.3* Protection Against Corrosion.

Gas piping in contact with earth or other material that could corrode the piping shall beprotected against corrosion by coating and wrapping in an approved manner to at least 6inches above ground . When dissimilar metals are joined underground, an insulating couplingor fitting shall be used. Piping shall not be laid in contact with cinders. Uncoated threaded orsocket welded joints shall not be used in piping in contact with soil or where internal orexternal crevice corrosion is known to occur. Zinc coating (galvanizing) shall not be deemedadequate protection for gas piping below grade.

7.1.3.1 Protective Coatings and Wrapping. Pipe protective coatings and wrappings shallbe approved for the application and shall be factory applied.

Exception: When installed in accordance with the manufacturer's installation instructions, fieldapplication of coatings and wrappings shall be permitted for pipe nipples, fittings and locationswhere the factory coating or wrapping has been damaged or necessarily removed at joints.


Within the industry, it is a known fact that ferrous pipe and fittings must be protected from corrosion when installed within 6 inches of the ground and/or underground. While preparing a letter of deficiency identifying the code requirements for pipe protection, it became difficult explaining what approved manner implied. The term "approved manner" is understood by some and not by others. Formulating a clear argument defending the necessity of protective coatings on ferrous pipe and fittings below ground is problematical. With the influx of combination inspectors, it is important that code requirements are clear and concise. This proposal does just that by spelling out the required protection.


Submitter Full Name:Pennie Feehan

Organization: Pennie L. Feehan Consulting



I, Pennie Feehan, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in





By checking this box I aff irm that I am Pennie Feehan, and I agree to be legally bound by the above Copyright Assignment



147


7.1.3* Protection Against Corrosion.

Gas piping in contact with earth or other material that could corrode the piping shall beprotected against corrosion in an approved manner. accordance with 7.1.3.1. When dissimilarmetals are joined underground, an insulating coupling or fitting shall be used. Piping shall notbe laid in contact with cinders. Uncoated threaded or socket welded joints shall not be usedin piping in contact with soil or where internal or external crevice corrosion is known to occur.

7.1.3.1* Steel and wrought-iron gas piping installed below ground and steel risers shall becoated or taped in its entirety. The piping or riser shall be cathodic protected by means of awelded anode. The anode size and type shall be approved.

Exception No.1: Factory assembled or field assembled anodeless risers are not required tobe catholically protected.

Exception No. 2: Cathodic protection methods approved by the AHJ.





Organization: Volgstadt & Associates, Inc.











148


7.1.7.3 Tracer Wire.

An electrically continuous corrosion-resistant tracer wire (minimum AWG 14) nor smaller than14 AWG or a traceable, locatable warning tape shall be buried with the plastic pipe tofacilitate locating. One end of the tracer wire or tape shall be brought aboveground at a buildingwall or riser.


The word “tape” alone does not fully describe the required properties of the tracer tapes. Such tapes are designed to be marker/warning tapes and have metallic foil in them to allow them to be located with electronic locating instruments.


Submitter Full Name:Gregg Gress

Organization: International Code Council



I, Gregg Gress, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in





By checking this box I aff irm that I am Gregg Gress, and I agree to be legally bound by the above Copyright Assignment



149


7.2.7 CSST.

CSST piping systems shall be installed in accordance with this code and the manufacturer'sinstallation instructions. Where run exposed and not concealed within a wall, floor or ceilingcavity, CSST shall be installed so as to closely follow the surface from which it is supported.CSST shall not be run in open air without continuous support unless it is not less than 6 feetabove the adjacent grade or floor.


It is common for CSST to be installed exposed and flying through the air without continuous support. For example, CSST run to an appliance sitting on a pad outdoors. The span from the building outside wall to the appliance is in free air and is subject to foot traffic, pets, lawn maintenance equipment, etc. CSST is often run down from a ceiling to a furnace or water heater and is run in midair with no support and without following a surface. Same issue; it is subject to damage and repeated movement. CSST was intended to be concealed in cavities where it is protected, but, once it is run exposed, special precautions must be taken to protect it from bending, flexing, etc. Where the CSST is run to a suspended unit heater, for example, it is protected by virtue of its height and inaccessibility.














Public Input No. 43-NFPA 54-2012 [ Section No. 7.13 ]

150

7.13 Electrical Bonding and Grounding.

7.13.1 Pipe 1 Metal Gas Piping and Tubing Other than CSST .

Each aboveground portion of a

All above ground metal gas piping

system, other than CSST, that is likely to become energized

systems installed in, or attached to, a building or structure, shall be electricallycontinuous and bonded to an effective ground-fault current path. Gas piping

, other than CSST,

shall be

considered to be

bonded

when it is connected to appliances that are connected to the appliance grounding conductor ofthe circuit supplying that appliance.

7.13.2 * CSST.

CSST gas piping systems shall be bonded to the electrical service grounding electrode system. Thebonding jumper shall connect to a metallic pipe or fitting between the point of delivery and the firstdownstream CSST fitting. The bonding jumper

to either the service equipment enclosure; the grounded conductor at the service; thegrounding electrode conductor, if of sufficient size; or to one or more of thegrounding electrodes used. The bonding conductor shall not be smaller than 6 AWGcopper wire or equivalent.

Gas piping systems that contain one or more segments of CSST

The bonding clamp shall be

bonded in accordance with this section

connected in an accessible location to a metallic pipe or fitting downstream of thepoint of delivery .

7.13.3* Prohibited Use.

Gas piping shall not be used as a grounding conductor or electrode.

7.13.4* Lightning Protection Systems.

Where a lightning protection system is installed, the bonding of the gas piping shall be inaccordance with NFPA 780, Standard for the Installation of Lightning Protection Systems.


The bonding of gas piping has been a code requirement for decades, and is consistent with the National Electrical Code. The bonding requirements for CSST were revised in the 2009 edition. Research is being conducted to confirm that the current bonding requirements for CSST are adequate, or to identify any revisions needed. While reviewing the bonding of gas piping it has been noted that the recently revised requirements should be applicable to all gas piping, not just CSST. The likelihood of metallic gas piping systems becoming energized is not dependent on the material. Current building codes require all metal water piping and exposed structural metal in buildings to be bonded. Many residential, commercial and industrial buildings contain as much or more metallic gas piping as metal water piping that is not being used as a grounding electrode. Metallic gas piping is just as conductive and poses an identical risk of electrical shock as water piping. Therefore, the bonding of the metal gas piping needs to be treated identically to the comprehensive rules for bonding other metal objects, such as water piping and structural steel. The proposed type of bonding for metal gas piping is commonly practiced in North America. Section 10-406 of the Canadian Electrical Code (CSA C22.1) requires all metallic gas piping to be bonded (with a 6 AWG conductor) directly to the grounding electrode system. The specified bonding practices are recognized as safe and effective by the National Electric Code (NEC) as implied in Article 250.106. Furthermore, as stated in the Informational Note following 250.104 (B) of the NEC, bonding all piping and metal air ducts within the premises will provide additional safety. The metal gas piping systems in many buildings often consists of hundreds of feet of piping, and an equipment grounding conductor of 12 or 14 AWG will not adequately bond the system to safely de-energize it in a ground fault or over-voltage condition.


151

Submitter Full Name:FRANK STANONIK

Organization: GAS APPLIANCE MANUFACTURER

Submittal Date: Wed Jun 27 12:28:10 EDT 2012


I, FRANK STANONIK, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights

in copyright in this Public Input (including both the Proposed Change and the Statement of Problem and Substantiation). I




By checking this box I aff irm that I am FRANK STANONIK, and I agree to be legally bound by the above Copyright

Assignment and the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating

an electronic signature that w ill, upon my submission of this form, have the same legal force and effect as a handw ritten

signature


7.13.2* CSST.

CSST gas piping systems shall be bonded to the electrical service grounding electrodesystem. The bonding jumper shall connect to a metallic pipe or fitting between the point ofdelivery and the first downstream CSST fitting. The bonding jumper shall not be smaller than 6AWG copper wire or equivalent. Gas piping systems that contain one or more segments ofCSST shall be bonded in accordance with this section. CSST with an arc-resistant jacketlisted by an approved agency for installation without the direct bonding, as prescribed in thissection, shall be installed in accordance with section 7.13.1 and the manufacturer’sinstallation instructions.

Additional Proposed Changes

File Name Description Approved

Stringfellow-Residential LightningFires_Modified_Final.pdf

Stringfellow-Residential Lightning Fires_Modified_Final.pdf

LC 1024 Final Version Rev02_16_12.pdf LC 1024 Final Version Rev02_16_12.pdf

Open LTI_10_3241-confidential


The use of a CSST product with a protective, arc-resistant jacket is an alternate method of protection against electrical arcing damage caused by high voltage transient events such as a nearby lightning strike. An arc-resistant jacket does not rely on direct bonding to the grounding electrode system to reduce or eliminate damage from electrical arcing. Instead, the protective jacket acts as a resistor and is designed to locally absorb and dissipate the arcing energy over a short length of the jacket. The jacket, in essence, disrupts the focus of the arc and reduces the energy level below the threshold value that can cause a perforation of the tubing wall. This dynamic action is equally effective compared to the current CSST bonding method regardless of the bonding conductor size or length. The protection against arcing is provided uniformly throughout the piping system, and is not affected by close proximity to other metallic systems that may not be similarly bonded. The ICC Evaluation Service has developed listing criteria for arc-resistant jackets to verify that this design approach will provide an ability to resist damage from transient arcing currents under a wide range of conditions. A copy of the PMG Listing Criteria (LC1024) is included with this proposal. Currently, three CSST products are listed to PMG LC1024. The listing criteria defines the experimental means to determine whether the protective jacket provides resistance to damage from indirect lightning strikes without the need

152

for additional bonding as prescribed currently in 7.13.2 of the 2012 edition of the NFGC. A proposal to include performance requirements for an arc-resistant jacket based on the PMG LC1024 Listing Criteria is presently under consideration by the ANSI LC-1 TAG. Extensive testing has been performed by Lightning Technologies Inc. (Pittsfield, MA) to demonstrate that the protective, arc-resistant jacket can resist in excess of 4.5 coulombs without a perforation of the tubing wall. A copy of a pertinent LTI test report is attached. By comparison, experimental testing has determined that energy levels around 0.15 coulombs are sufficient to perforate uncoated CSST. While no product or system is immune to damage from a direct lightning strike, lightning experts agree that a level of approximately 2 coulombs is the upper end of the energy level induced in metallic systems (inside the building) from a nearby/indirect lightning strike. A recent IEEE paper by Dr. Michael Stringfellow (attached) on lightning damage confirms that the proposed energy value (2 coulombs and lower) appears consistent with lightning damage observed in the field, and the acceptance level (4.5 coulombs) represents an appropriate safety threshold for this type of lightning protection. CSST with arc-resistant jacket has been commercially installed since 2004, and at the present time, three different (black-jacketed) products are commercially available. Field experience has been very favorable with no known cases of indirect lightning damage to CSST piping systems using these arc-resistant jackets. Currently, at least 10 states permit the installation of the arc-resistant CSST without the need for additional bonding. Given that both conventional (yellow) and advanced (black) CSST products will continue to be commercially available, both methods of electrical protection of CSST systems should be recognized and permitted within the Code.


Submitter Full Name:Robert Torbin

Organization: Omega Flex Inc.

Submittal Date: Thu Jun 28 09:35:31 EDT 2012


I, Robert Torbin, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in





By checking this box I aff irm that I am Robert Torbin, and I agree to be legally bound by the above Copyright Assignment



153

Public Input No. 72-NFPA 54-2012 [ New Section after A.3.3.6.11.1 ]

Add a new section to read as follows: A.3.3.51 For installations using biogas, CSA B 149.6 is a recommended resource because itcontains safety practices that should be addressed due to the inherent hazards. which may not be notspecifically addressed in NFPA 54, that are specific to the use of biogas, such as but not limited tooxygen, moisture, or hydrogen sulfide in the gas; the use of such gases for a pilot; the purging of agas train containing biogas: and types of piping materials.


The proposal clarifies that NFPA 54 covers fuel gases coming from a landfill, a wastewater digester, and an agricultural digester, aka biogases). This is needed since NFPA 86 and NFPA 37 cover biogases and each standard references NFPA 54. In addition, CSA B 149.6 will be published as ANSI/CSA B 149.6 at the next publication since is now an ANSI and CSA standard.














154

Public Input No. 45-NFPA 54-2012 [ New Section after A.5.8 ]

Add a new section to read as follows: A.5.8.2 For industrial, power generation, or commercial applications requiring delivery pressuresgreater than 2 PSI, the authority having jurisdiction can permit the listed line gas pressure regulator todelivery pressure greater than 2 PSI.


ANSI Z21.80/CSA 3.7, Line Pressure Regulators permits a maximum outlet pressure of 2 PSI. NFPA 85, NFPA 86, CSD-1 and NFPA 37 all reference NFPA 54. If strictly enforced, that would prevent any system from having more than 2 PSI of delivery, which is not practical for many installations covered under these standards.














155

Public Input No. 73-NFPA 54-2012 [ New Section after A.5.8 ]

Add new section to read as follows: A.5.9.2(3) Monitor regulator sets have three types of arrangements with a line regulator 1) Upstream monitor regulator with external sensing line / Line Regulator 2) Upstream Line Regulator with external sensing line / monitor regulator 3) Upstream line regulator with internal sensing line / monitor regulator


The proposal intends to provide information about different types of piping arrangements for line regulators.














156

Public Input No. 34-NFPA 54-2012 [ New Section after A.7.1.3 ]


A.7.1.3 Mill Coated Pipe. When purchasing steel pipe for underground gas services, operatorsshould purchase mill coated pipe (i.e., pipe coated during manufacturing process). Whenpurchasingpipe wrap tapes. There are many different types of pre-coated piping in the market. The better thecoating or tape wrap application, the less electrical current isneeded to cathodically protect the pipe.Some examples of mill coatings are extruded polyethylene or polypropylene plastic coatings(Extrube®, Extrucoat® Pipe), fusion bonded epoxy, coal tar coatings, enamels, mastics. A qualified(corrosion) person can help select the best coating or tape wrap for a natural gas system. A localnatural gas utility may be able to give the name and location of nearby suppliers of mill coated gaspipe and pipe wrap tape.

There are commercially available pipe wrap tapes specifically designed to protect buried steel gaspipes and joints. For example, Scotchrap® 50 and 51 tapes are tought, polyvinyl chloride based tapeswith special high tack adhesives formulated toresist corrosion of metal piping systems above andbelow ground, fittings and joints on all mill-coated pipe and electrical conduit systems.

Anode size and type should be selected by qualified personnel familiar with the local soil conditionsand based on the length of piping and the length of time the pipe is expected to be in service.





Organization: volgstadt & Associates, Inc.











Public Input No. 14-NFPA 54-2012 [ Section No. C.3 ]

157

C.3 Leak Check Not Using a Meter.

This test can be done using one of the following methods:

(1) For Any Gas System. To an appropriate checkpoint, attach a manometer or pressure gaugebetween the inlet to the piping system and the first regulator in the piping system, momentarilyturn on the gas supply, and observe the gauging device for pressure drop with the gas supplyshut off. No discernible drop in pressure should occur during a period of 3 minutes.

(2) For Gas Systems Using Undiluted LP-Gas System Preparation for Propane. A leak checkperformed on an LP-Gas system being placed back in service can be performed by using one ofthe following methods:

(a) By inserting a pressure gauge between the container gas shutoff valve and the firstregulator in the system, admitting full container pressure to the system and then closingthe container shutoff valve. Enough gas should then be released from the system to lowerthe pressure gauge reading by 10 psi (69 kPa). The system should then be allowed tostand for 3 minutes without showing an increase or a decrease in the pressure gaugereading.

(b) For systems serving appliances that receive gas at pressures of 1⁄2 psi (3.5 kPa) or less,by inserting a water manometer or pressure gauge into the system downstream of the finalsystem regulator, pressurizing the system with either fuel gas or air to a test pressure of 9in. w.c. ± 1⁄2 in. w.c. (2.2 kPa ± 0.1 kPa), and observing the device for a pressure change. Iffuel gas is used as a pressure source, it is necessary to pressurize the system to fulloperating pressure, close the container service valve, and then release enough gas fromthe system through a range burner valve or other suitable means to drop the systempressure to 9 in. w.c. ± 1⁄2 in. w.c. (2.2 kPa ± 0.1 kPa). This ensures that all regulators inthe system upstream of the test point are unlocked and that a leak anywhere in thesystem is communicated to the gauging device. The gauging device should indicate noloss or gain of pressure for a period of 3 minutes.

(c) By inserting a 30 psi (207 kPa) pressure gauge on the downstream side of the first-stageregulator, admitting normal operating pressure to the system and then closing thecontainer valve. Enough pressure should be released from the system to lower thepressure gauge reading by 5 psi (34.5 kPa). The system should be allowed to stand for 3minutes without showing an increase or a decrease in pressure gauge reading.



Changes to C.3.docx


In C.3 (2) (b) and (e), the proposal incorporates new language to cover leak checking of systems utilizing a test assembly with a low pressure regulator and an inches water column gauge or a test assembly with a high pressure regulator and a 30 psi gauge as part of the test assembly. The proposal refers the reader to the type of test that should be conducted when utilizing a specific type of device. In C.3 (2) (c), there are systems that utilize a number of second-stage regulators supplied from one first-stage regulator and 2 psi systems may use a number of line pressure regulators supplied from one first-stage and a 2 psi regulator. The requirement in the test protocol is to insure regulators upstream of the selected checkpoint are unlocked. If there are piping systems with regulators in parallel within the piping system and there is a leak in the parallel line, the new provisions would insure that the parallel regulator would not lockup and the leak would be detected. If there is no leak in the parallel line, the parallel regulator would lockup as expected and that is acceptable. This change specifically addresses the need for a clarification of the testing required when there is more than one second stage regulator and the procedure to ensure the regulators are unlocked during the test.

Paragraph C.3 (2) (d) adds testing information for 5 psi first-stage regulators which are utilized in many of the northern States where container pressures can drop to 10 psi. The 2 psi minimum pressure reduction will

158

insure that the first stage regulator, 5 or 10 psi outlet setting is unlocked when the leak check is performed.

The addition of “gauge/regulator” test assemblies in C.3(2)(b) and (e), which incorporate a regulator that limits the pressure to the gauge during the test, is to recognize new types of leak check devices that are available and presently being used by LP-Gas servicemen.


Submitter Full Name:Bruce Swiecicki

Organization: National Propane Gas Associati

Affilliation: Technology, Standards and Safety Committee



I, Bruce Sw iecicki, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in





By checking this box I aff irm that I am Bruce Sw iecicki, and I agree to be legally bound by the above Copyright



signature

159

B L A N K

160

Public Input Acted Upon by the Panels

The advisory panels took an action on the following Public Input (PI) items and are being forwarded to

the full committee with a recommendation. These items will be discussed in turn as the committee

reviews the code in chapter section sequence starting with Chapter 1 (definitions associated with later

chapter revisions are typically held until the main revision is discussed).

Included among the public input items are panel generated revisions designated as “FR-##-NFPA-54-

2012”. These items will become committee input items only if accepted by committee. If not accepted,

they will be discarded and will not show up in the First Public Draft report.

161

B L A N K

162

Public Input No. 1-NFPA 54-2012 [ Chapter NFPA ]

It is very confusing throughout NFPA-54 in regards to the use of pressure units. I wouldrecommend the use of psig or psia be used consistently through the text. The use of psishould only be used when referring to differential pressures.

For example:

1) Tables 6.2(a) through 6.2(x) and Tables 6.3(a) through 6.3(m) lists the inlet pressure unitsas psi. These should be corrected to psig.

2) Sections 6.4.1; 6.4.2; B.3.2; B.3.5; and B.5 discuss the use of the sizing equations in termsof high pressure and low pressure.

High pressure is defined as 1.5 psi and above. Low pressure is defined as less than 1.5psi. The units that are used should be psig.

High pressure should be defined as 1.5 psig and above. Low pressure should be definedas less than 1.5 psig.

What makes things even more confusing is when P1 and P2 are shown with units of psia

for inputs to the high pressure equation.

3) Section 3.3.81 is the definition of pressure. Since atmospheric pressure is defined, Iwould recommend defining gauge pressure too. Possibly

both definitions should include a description of how the pressures are used in the Code. If the units of pressure are used consistently throughout

the Code, as either psig or psia, then the confusion would go away.


Provide clear units when discussing pressure. Inlet pressure should be in units of psig NOT psi. See the attached description that gives clear examples of the confusion.


Submitter Full Name:Ken Wallace

Organization: JK Windley & Associates

Submittal Date: Thu Mar 08 15:22:15 EST 2012

Committee Statement

Resolution:


I, Ken Wallace, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in





By checking this box I aff irm that I am Ken Wallace, and I agree to be legally bound by the above Copyright Assignment



There is a statement in the introduction to the code stating that all pressures are guage pressureunless specifically indicated otherwise.

163

First Revision No. 16-NFPA 54-2012 [ Section No. 2.3.2 ]

2.3.2 ASTM Publications.

ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, (610)832-9585, www.astm.org.

ASTM A 53, Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-CoatedWelded and Seamless, 2007.

ASTM A 106, Standard Specification for Seamless Carbon Steel Pipe for High-TemperatureService, 2008.

ASTM A 254, Standard Specification for Copper-Brazed Steel Tubing, 1997 (Reaffirmed2007).

ASTM B 88, Standard Specification for Seamless Copper Water Tube, 2009.

ASTM B 210, Standard Specification for Aluminum and Aluminum-Alloy Drawn SeamlessTubes, 2004.

ASTM B 241, Standard Specification for Aluminum and Aluminum-Alloy Seamless Pipe andSeamless Extruded Tube, 2002.

ASTM B 280, Standard Specification for Seamless Copper Tube for Air-Conditioning andRefrigeration Field Service, 2008.

ASTM D 2513, Standard Specification for Polyethylene (PE) Gas Pressure Pipe, Tubing, andFittings, 2009.

ASTM D 2513, Standard Specification for Thermoplastic Gas Pressure Pipe, Tubing, andFittings, 2008.

ASTM E 136, Standard Test Method for Behavior of Materials in a Vertical Tube Furnace at750 Degrees C ,

2009

2011 .

ASTM F 1973, Standard Specification for Factory Assembled Anodeless Risers andTransition Fittings in Polyethylene (PE) and Polyamide 11 (PA11) and Polyamide 12 (PA12)Fuel Gas Distribution Systems, 2008.

ASTM F 2509, Standard Specification for Field-Assembled Anodeless Riser Kits for Use onOutside Diameter Controlled Polyethylene Gas Distribution Pipe and Tubing, 2006.

ASTM E2652, Standard Test Method for Behavior of Materials in a Tube Furnace with aCone-shaped Airflow Stabilizer, at 750°C , (2009a)


Submitter Full Name: [ Not Specified ]

Organization: [ Not Specified ]

Submittal Date: Wed Sep 19 14:59:20 EDT 2012

Committee Statement and Meeting Notes

CommitteeStatement:

E 136 is updated to the most recent edition, and ASTM E 2652 is added inaccordance with PI (Log 16).

FR-16-NFPA 54-2012

Public Input No. 22-NFPA 54-2012 [Section No. 2.3.2]

164


2.3.2 ASTM Publications.

ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, (610)832-9585, www.astm.org.

ASTM A 53, Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-CoatedWelded and Seamless, 2007.

ASTM A 106, Standard Specification for Seamless Carbon Steel Pipe for High-TemperatureService, 2008.

ASTM A 254, Standard Specification for Copper-Brazed Steel Tubing, 1997 (Reaffirmed2007).

ASTM B 88, Standard Specification for Seamless Copper Water Tube, 2009.

ASTM B 210, Standard Specification for Aluminum and Aluminum-Alloy Drawn SeamlessTubes, 2004.

ASTM B 241, Standard Specification for Aluminum and Aluminum-Alloy Seamless Pipe andSeamless Extruded Tube, 2002.

ASTM B 280, Standard Specification for Seamless Copper Tube for Air-Conditioning andRefrigeration Field Service, 2008.

ASTM D 2513, Standard Specification for Polyethylene (PE) Gas Pressure Pipe, Tubing, andFittings, 2009.

ASTM D 2513, Standard Specification for Thermoplastic Gas Pressure Pipe, Tubing, andFittings, 2008.

ASTM E 136, Standard Test Method for Behavior of Materials in a Vertical Tube Furnace at750 Degrees C, 2009 2011 .

ASTM F 1973, Standard Specification for Factory Assembled Anodeless Risers andTransition Fittings in Polyethylene (PE) and Polyamide 11 (PA11) and Polyamide 12 (PA12)Fuel Gas Distribution Systems, 2008.

ASTM F 2509, Standard Specification for Field-Assembled Anodeless Riser Kits for Use onOutside Diameter Controlled Polyethylene Gas Distribution Pipe and Tubing, 2006.

ASTM E2652, Standard Test Method for Behavior of Materials in a Tube Furnace with aCone-shaped Airflow Stabilizer, at 750°C , (2009a)


This change puts NFPA 54 in line with what was done for NFPA 101 (and many other documents) in the 2012 cycle. NFPA requirements are that definitions cannot contain requirements and the definitions of noncombustible and limited combustible contain requirements. Therefore this public input proposes to put simply a place holder in chapter 3 (definitions) and place the requirements into Chapter 4 (General), just as was done in NFPA 101 and 5000. The proposed language is identical to the language in NFPA 101. If the technical committee wishes it can simply extract the language from NFPA 101. The corresponding sections are: 3.3.67.2 would be extracted from 3.3.169.4 and 4.4 would be extracted from 4.6.13.

Related Public Inputs for This Document

Related Input Relationship

Public Input No. 17-NFPA 54-2012 [Section No. 3.3.67.1]

Public Input No. 18-NFPA 54-2012 [New Section after

165

A.3.3.6.11.1]

Public Input No. 20-NFPA 54-2012 [New Section after 4.3]

Public Input No. 21-NFPA 54-2012 [New Section after A.3.3.99.7]


Submitter Full Name:Marcelo Hirschler

Organization: GBH International

Submittal Date: Tue Jun 19 08:16:02 EDT 2012

Committee Statement

Resolution:

Statement:


I, Marcelo Hirschler, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights





By checking this box I aff irm that I am Marcelo Hirschler, and I agree to be legally bound by the above Copyright



signature


3.3.4 Air Shutter.

An adjustable device for varying the size of the primary air inlet(s).




Submittal Date: Thu Sep 20 08:47:27 EDT 2012


Committee Statement: The term is not used in the mandatory text.

FR-25-NFPA 54-2012

FR-16-NFPA 54-2012

E 136 is updated to the most recent edition, and ASTM E 2652 is added in accordance with PI(Log 16).

166

First Revision No. 9-NFPA 54-2012 [ Sections 3.3.6.8, 3.3.6.9 ]

Sections 3.3.6.8, 3.3.6.9

3.3.6.8 Nonresidential, Low-Heat Appliance.

A

commercial, industrial, or institutional

appliance needing a chimney capable of withstanding a continuous flue gas temperature notexceeding 1000°F (538°C).

[ 211, 2010]

3.3.6.9 Nonresidential, Medium-Heat Appliance.

A

commercial, industrial, or institutional

appliance needing a chimney capable of withstanding a continuous flue gas temperature notexceeding 1800°F (982°C).

[ 211, 2010]






CommitteeStatement:

The words are unnecessary, the chimney temperature criterion is not related to the nature ofthe occupancy, rather it’s related solely to the nature of the appliance.

FR-9-NFPA54-2012

Public Input No. 46-NFPA 54-2012 [Sections 3.3.6.8, 3.3.6.9]

167

Public Input No. 46-NFPA 54-2012 [ Sections 3.3.6.8, 3.3.6.9 ]

Sections 3.3.6.8, 3.3.6.9

3.3.6.8 Nonresidential, Low-Heat Appliance.

A commercial, industrial, or institutional appliance needing a chimney capable of withstandinga continuous flue gas temperature not exceeding 1000°F (538°C). [211, 2010]

3.3.6.9 Nonresidential, Medium-Heat Appliance.

A commercial, industrial, or institutional appliance needing a chimney capable of withstandinga continuous flue gas temperature not exceeding 1800°F (982°C). [211, 2010]


These words cannot be defined and only serve to make the definitions ambiguous. The words are unnecessary, the chimney temperature criterion is not related to the nature of the occupancy, rather it’s related solely to the nature of the appliance.





Committee Statement

Resolution:

Statement:










FR-9-NFPA 54-2012

The words are unnecessary, the chimney temperature criterion is not related to the nature of theoccupancy, rather it’s related solely to the nature of the appliance.

168

First Revision No. 37-NFPA 54-2012 [ New Section after 3.3.8 ]

3.3.9 Automatic Vent Damper.

A device that is intended for installation in the venting system, in the outlet of ordownstream of the appliance draft hood, of an individual automatically operatedappliance and that is designed to automatically open the venting system when theappliance is in operation and to automatically close off the venting system when theappliance is in a standby or shutdown condition.






CommitteeStatement:

The definition is relocated from 3.3.29.5.1 because other definitions in 3.3.29.5 are not termsused in the mandatory code text. Therefore, the definition for automatic vent damper ispromoted to a stand-alone definition.

FR-37-NFPA54-2012

First Revision No. 26-NFPA 54-2012 [ Section No. 3.3.11.3 ]

3.3.11.3 Low Pressure Boiler.

A boiler for generating steam at gauge pressures not in excess of 15 psi (103 kPa) or forfurnishing water at a maximum temperature of 250°F (121°C) at a maximum gauge pressure of160 psi (1103 gauge pressure of 1100 kPa). [211 31 , 2010 2011 ]






CommitteeStatement:

NFPA 211 extracts the definition from NFPA 31. The definition is therefore updated toreflect the primary source document.

FR-26-NFPA 54-2012

169


3.3.24 Consumption.

The maximum amount of gas per unit of time, usually expressed in cubic feet per hour, or Btuper hour, required for the operation of the appliance or appliances supplied.






CommitteeStatement:

The term is not used in the mandatory text of the code and is therefore removed fromthe glossary.

FR-33-NFPA 54-2012


3.3.28 Design Certification.

The process by which a product is evaluated and tested by an independent laboratory to affirmthat the product design complies with specific requirements.






CommitteeStatement:

The term is not used in the mandatory text of the code and is therefore removed fromthe glossary.

FR-34-NFPA 54-2012

170



3.3.29.5.1 Automatic Vent Damper Device.

A device that is intended for installation in the venting system, in the outlet of or downstreamof the appliance draft hood, of an individual automatically operated appliance and that isdesigned to automatically open the venting system when the appliance is in operation and toautomatically close off the venting system when the appliance is in a standby or shutdowncondition.

3.3.29.5.2 Electrically Operated, Automatic Vent Damper Device.

An automatic vent damper device that employs electrical energy to control the device.

3.3.29.5.3 Mechanically Actuated, Automatic Vent Damper Device.

An automatic vent damper device dependent for operation on the direct application ortransmission of mechanical energy without employing any type of energy conversion.

3.3.29.5.4 Thermally Actuated, Automatic Vent Damper Device.

An automatic vent damper device dependent for operation exclusively on the direct conversionof the thermal energy of the vent gases into mechanical energy.






CommitteeStatement:

The term used in the code is "automatic vent damper." Therefore, the definition for automaticvent damper is relocated as a stand-alone definition and all other sub-definitions for ventdamper are removed from the glossary.

FR-36-NFPA54-2012

171


3.3.31 Domestic Laundry Stove.

A fuel gas–burning appliance consisting of one or more open-top-type burners mounted onhigh legs or having a cabinet base.






CommitteeStatement:

The committee is not aware that these units are being produced and installed. The committeeinvites comments from anyone who is producing or installing such appliances.

FR-29-NFPA54-2012

172


3.3.51 Gases.

Include natural gas, manufactured gas, liquefied petroleum (LP) gas in the vapor phase only,liquefied petroleum gas–air mixtures, biogases (e.g., landfill. wastewater digester. andagricultural digester) and mixtures of these gases, plus gas–air mixtures within the flammablerange, with the fuel gas or the flammable component of a mixture being a commerciallydistributed product.

3.3.51.1 Flue Gases.

Products of combustion plus excess air in appliance flues or heat exchangers.

3.3.51.2 Utility Gases.

Natural gas, manufactured gas, liquefied petroleum gas–air mixtures, or mixtures of any ofthese gases.

3.3.51.3 Vent Gases.

Products of combustion from appliances plus excess air, plus dilution air in the ventingsystem above the draft hood or draft regulator.


The proposal clarifies that NFPA 54 covers fuel gases coming from a landfill, a wastewater digester, and an agricultural digester, AKA biogases.This is needed since NFPA 86 and NFPA 37 cover biogases and each standard references NFPA 54.





Committee Statement

Resolution:

The committee believes that the subject of biogases extends far beyond the definition of gases.The committee and the proponent has not addressed issues such as heat content, contaminants,and materials. The committee established a task group to review other sections of the code thatmay need to be modified to address the use of biogases.

173



3.3.57.5.1 High-Static Pressure-Type Unit Heater.

A self-contained, automatically controlled, vented

appliance having integral means for circulation of air against 0.2 in. (15 mm) H 2 O or

greater static pressure.

3.3.57.5.2 Low-Static Pressure-Type Unit Heater.

A self-contained

,

automatically controlled, vented,

fuel gas–burning space heating appliance, intended for installation in the space to beheated without the use of ducts, having integral means for circulation of air

, normally by a propeller fan(s), and may be equipped with louvers or face extensions made inaccordance with the manufacturer's specifications

.






CommitteeStatement:

The terms "high pressure unit heater" and "low pressure unit heater" are not used in themandatory text. The committee updated the definition to a generic definition for unit heater.

FR-30-NFPA54-2012

174


3.3.64 Leak Check.

An operation performed on a gas piping system to verify that the system does not leak.




Submittal Date: Tue Sep 18 17:44:07 EDT 2012


CommitteeStatement:

The committee deleted the definition because the leak check is required by, and is fullydescribed in subsection 8.2.3. The committee notes that there is no other usage in thecode outside of 8.2.3 and its related annex material. Therefore, the definition is notneeded.

FR-7-NFPA 54-2012 Also refer tostatement onrelated PI 26.


175


3.3.64 Leak Check.

An operation performed on a complete gas piping system, the appliance connectors andappliances to verify that the system does not leak.


Return the prior definition per the 2006 edition, so to conform to my proposed change in 8.2.3. Respectfully, this submitter maintains that there was no justification for the change made in this definition in the 2009 edition revision. A leak check that only includes the piping system - and not the appliance connector and appliance controls - is no "leak check". From my 36 years of experience, the appliances and the appliance connectors are as dynamic (if not more dynamic in terms of potential leak sources) as the piping system, when introducing or restoring gas service. While it has been commented that a very small amount of gas leakage is allowed for gas (appliance) valves, the same holds true for manual shut-off valves in-line (reference ANSI ZS21.15). There have been incidents where the physical act of reaching behind an appliance, or moving the appliance, to reach the line shut-off valve - per the existing requirements - have in fact damaged the appliance connector.


Submitter Full Name:TIM DUNN

Organization: DUNN LABORATORIES INC


Committee Statement

Resolution:

Statement:

FR-7-NFPA 54-2012 Also refer to statement on related PI 26.

The committee deleted the definition because the leak check is required by, and is fully describedin subsection 8.2.3. The committee notes that there is no other usage in the code outside of 8.2.3and its related annex material. Therefore, the definition is not needed.

176


3.3.67.1 Combustible ( Material ) . As pertaining to materials adjacent to or in contact with heat-producing appliances, vent connectors, gasvents, chimneys, steam and hot water pipes, and warm air ducts, materials made of or surfaced with wood,compressed paper, plant fibers, or other materials that are capable of being ignited and burned. Suchmaterial shall be considered combustible even though flame-proofed, fire-retardant treated, or plastered.

A material that, in the form in which it is used and under the conditions anticipated, will ignite andburn; a material that does not meet the definition of noncombustible. [NFPA 101; 3.3.169.1].






CommitteeStatement:

This extracts the definition of combustible material from NFPA 101 to prevent the use ofdefinitions that are duplicative in meaning but not identical. The committee did not include thereference to limited-combustible material because the term is not used any place else in the code.

FR-17-NFPA54-2012


177


3.3.67.1 Combustible ( Material) .

As pertaining to materials adjacent to or in contact with heat-producing appliances, ventconnectors, gas vents, chimneys, steam and hot water pipes, and warm air ducts, materialsmade of or surfaced with wood, compressed paper, plant fibers, or other materials that arecapable of being ignited and burned. Such material shall be considered combustible eventhough flame-proofed, fire-retardant treated, or plastered. A material that, in the form in which itis used and under the conditions anticipated, will ignite and burn; a material that does notmeet the definition of noncombustible or limited-combustible. [NFPA 101; 3.3.169.1]


This extracts the definition of combustible material from NFPA 101 to prevent the use of definitions that are duplicative in meaning but not identical. This is a goal of the NFPA Technical Advisory Committee on the Glossary of Terminology, set up by Standards Council, which I chair. This public input is not being generated on behalf of the glossary committee. The proposed annex note brings in the concept from the original definition in NFPA 54. The term “flameproofed” is now considered inappropriate.If the committee wants to explain what limited combustible materials are it can extract that from 4.6.14 of NFPA 101, shown below, but that is probably not necessary.I have proposed public input to also extract the concept of noncombustible (material). 4.6.14* Limited-Combustible Material. A material shall be considered a limited-combustible material where all the conditions of 4.6.14.1 and 4.6.14.2, and the conditions of either 4.6.14.3 or 4.6.14.4, are met. 4.6.14.1 The material shall not comply with the requirements for noncombustible material in accordance with 4.6.13. 4.6.14.2 The material, in the form in which it is used, shall exhibit a potential heat value not exceeding 3500 Btu/lb (8141 kJ/kg) where tested in accordance with NFPA 259, Standard Test Method for Potential Heat of Building Materials.

178

4.6.14.3 The material shall have the structural base of a noncombustible material with a surfacing not exceeding a thickness of 1/8 in. (3.2 mm) where the surfacing exhibits a flame spread index not greater than 50 when tested in accordance with ASTM E 84, Standard Test Method for Surface Burning Characteristics of Building Materials, or ANSI/UL 723, Standard for Test for Surface Burning Characteristics of Building Materials. 4.6.14.4 The material shall be composed of materials that, in the form and thickness used, neither exhibit a flame spread index greater than 25 nor evidence of continued progressive combustion when tested in accordance with ASTM E 84, Standard Test Method for Surface Burning Characteristics of Building Materials, or ANSI/UL 723, Standard for Test for Surface Burning Characteristics of Building Materials, and shall be of such composition that all surfaces that would be exposed by cutting through the material on any plane would neither exhibit a flame spread index greater than 25 nor exhibit evidence of continued progressive combustion when tested in accordance with ASTM E 84 or ANSI/UL 723. 4.6.14.5 Where the term limited-combustible is used in this Code, it shall also include the term noncombustible.



Public Input No. 18-NFPA 54-2012 [New Section afterA.3.3.6.11.1]





Committee Statement

Resolution:

Statement:










signature

FR-17-NFPA 54-2012

This extracts the definition of combustible material from NFPA 101 to prevent the use of definitionsthat are duplicative in meaning but not identical. The committee did not include the reference tolimited-combustible material because the term is not used any place else in the code.

179


3.3.67.2 Noncombustible Material.

A material that, in the form in which it is used and under the conditions anticipated, will notignite, burn, support combustion, or release flammable vapors when subjected to fire or heat.Materials that are reported as passing ASTM E 136, Standard Test Method for Behavior ofMaterials in a Vertical Tube Furnace at 750 Degrees C , are considered noncombustiblematerials.






Committee Statement:

The committee removed the second sentencebecause it is a requirement. The requirement forpassing the ASTM E136 test was relocated tochapter 4.

FR-18-NFPA 54-2012; The committee believes that adefinition containing descriptive text is needed. The useof a cross-reference as a definition is inadequate.


180


3.3.67.2 Noncombustible ( Material) .

A material that, in the form in which it is used and under the conditions anticipated, will notignite, burn, support combustion, or release flammable vapors when subjected to fire or heat.Materials that are reported as passing ASTM E 136, Standard Test Method for Behavior ofMaterials in a Vertical Tube Furnace at 750 Degrees C , are considered noncombustiblematerials See Section 4.4 .






Public Input No. 21-NFPA 54-2012 [New Section afterA.3.3.99.7]





Committee Statement

Resolution:

Statement:

FR-18-NFPA 54-2012; The committee believes that a definition containing descriptive text isneeded. The use of a cross-reference as a definition is inadequate.

The committee removed the second sentence because it is a requirement. The requirement forpassing the ASTM E136 test was relocated to chapter 4.

181


3.3.76 Parking Structure.

A building, structure, or portion thereof used for the parking, storage, or both, of motorvehicles. [1 88A , 2009 2011 ]

3.3.76.1 Basement or Underground Parking Structure.

A parking structure or portion thereof located below finished ground level.

3.3.76.2 Enclosed Parking Structure.

Having exterior enclosing walls that have less than 25 percent of the total wall area open toatmosphere at each level using at least two sides of the structure.






Committee Statement: The extract tag is updated to reflect the primary source document.

FR-27-NFPA 54-2012


3.3.83 Pressure Test.

An operation performed to verify the gastight integrity of gas piping following its installation ormodification.






CommitteeStatement:

The pressure test is required by and completely described by subsection 8.1. Therefore,a definition is not needed.

FR-8-NFPA 54-2012

182


3.3.88.4 Monitoring Regulator.

A pressure regulator set in a non-regulating state and in series with another pressureregulator for the purpose of automatically taking over in an emergency the control of thepressure downstream of the regulator in case that pressure tends to exceed a set maximum.







Committee Statement

Resolution: Paragraph 5.9.2.1 provides an operational definition by its description. The proposed additionreads as a requirement, and the NFPA Manual of Style prohibits including requirements indefinitions.

183


3.3.101 Thermostat.

3.3.101.1 Electric Switch–Type Thermostat.

A device that senses changes in temperature and controls electrically, by means of separatecomponents, the flow of gas to the burner(s) to maintain selected temperatures.

3.3.101.2 Integral Gas Valve–Type Thermostat.

An automatic device, actuated by temperature changes, designed to control the gas supply tothe burner(s) in order to maintain temperatures between predetermined limits and in which thethermal actuating element is an integral part of the device: (1) graduating thermostat, athermostat in which the motion of the valve is approximately in direct proportion to the effectivemotion of the thermal element induced by temperature change; (2) snap-acting thermostat, athermostat in which the thermostatic valve travels instantly from the closed to the openposition, and vice versa.






CommitteeStatement:

The terms "electric switch-type thermostat" and "integral gas valve-type thermostat" are notused in the mandatory text of the code and are therefore removed from the glossary.

FR-35-NFPA54-2012


184

3.3.

106 Vent

106 Gas Vent .

A passageway

used to convey flue

composed of listed factory-built components assembled inaccordance with the manufacturer's installation instructions forconveying vent gases from appliances or their vent connectors tothe outdoors.

3.3.106.

1 Common

1 Common Vent.

That portion of a gas vent or chimney system that

conveys products of combustion from

conveys vent gases from more than one appliance. 3.3.106.

2 Gas Vent.

A passageway composed of listed factory-built components assembled in accordance withthe manufacturer's installation instructions for conveying vent gases from appliances or theirvent connectors to the outdoors.

3.3.106.2.

1 Special-Type Gas Vent.

Gas vents for venting listed Category II, III, and IV appliances.

3.3.106.

2.

2 Type B Gas Vent.

A gas vent for venting listed gas appliances with draft hoods andother Category I appliances listed for use with Type B gas vents.

3.3.106.

2.

3 Type B-W Gas Vent.

A gas vent for venting listed wall furnaces.

3.3.106.

2.

4 Type L

Gas

Vent.

A gas vent for venting appliances listed for use with Type L ventsand appliances listed for use with Type B gas vents.

3.3.106.3 Regulator Vent.

The opening in the atmospheric side of the regulator housing permitting the in and outmovement of air to compensate for the movement of the regulator diaphragm.





Committee Statement and Meeting Notes 185

CommitteeStatement:

The committee removed the parent definition for vent because it does not apply to a regulatorvent. In addition, the committee determined that the gas vent should be the parent definitionand all sub-definitions are types of gas vents.

FR-14-NFPA54-2012

Public Input No. 60-NFPA 54-2012 [ Section No. 3.3.106.2 [Excluding any Sub-

Sections] ]

A passageway composed of listed factory-built components assembled in accordance with themanufacturer's installation instructions for conveying vent gases from appliances or their ventconnectors to the outdoors. This definition does not apply to plastic plumbing piping that isspecified as a venting material in the manufacturer's instructions for gas-fired appliances thatare listed for venting with such piping.


Section 12.5.2 does not refer to plastic piping as a vent, rather, it refers to plastic piping only as a material used for venting. By definition, a vent is a listed product, listed for venting, whereas, PVC, CPVC and ABS plumbing piping is not listed as a vent for combustion products. Special vents in this code are listed products for Category II, III and IV appliances (see def) and plumbing plastic pipe does fall under that definition either. Section 12.5.2 requires AHJ approval of the plastic pipe that the appliance manufacturer specifies under its listing, why? Gas vents and plastic pipes specified to be used for venting are two different animals and code is blurring the distinction.





Committee Statement

Resolution:

Statement:










FR-12-NFPA 54-2012

The committee clarified that plastic pipe is not a gas vent as defined by this code.

186

First Revision No. 15-NFPA 54-2012 [ New Section after 4.3 ]

.






CommitteeStatement:

This change puts NFPA 54 in line with what was done for NFPA 101 (and many otherdocuments) in the 2012 cycle. NFPA requirements are that definitions cannot containrequirements and the definitions of noncombustible and limited combustible containrequirements. Therefore this public input proposes to put simply a place holder in chapter 3(definitions) and place the requirements into Chapter 4 (General), just as was done in NFPA101 and 5000. The proposed language is identical to the language in NFPA 101. If the technicalcommittee wishes it can simply extract the language from NFPA 101. The correspondingsections are: 3.3.67.2 would be extracted from 3.3.169.4 and 4.4 would be extracted from4.6.13.

FR-15-NFPA54-2012


See the Committee Statement for Instructions on this Change

187

Public Input No. 20-NFPA 54-2012 [ New Section after 4.3 ]

Add a new section to read: 4.4* Noncombustible Material. A material that complies with any of the following shall beconsidered a noncombustible material: ? (1) A material that, in the form in which it is used and under the conditions anticipated, will notignite, burn, support combustion, or release flammable vapors when subjected to fire or heat ? (2) A material that is reported as passing ASTM E 136, Standard Test Method for Behavior ofMaterials in a Vertical Tube Furnace at 750 Degrees C ? (3) A material that is reported as complying with the pass/fail criteria of ASTM E 136 whentested in accordance with the test method and procedure in ASTM E 2652, Standard Test Method forBehavior of Materials in a Tube Furnace with a Cone-shaped Airflow Stabilizer, at 750 Degrees C







Committee Statement

Resolution:

Statement:

FR-15-NFPA 54-2012

This change puts NFPA 54 in line with what was done for NFPA 101 (and many other documents)in the 2012 cycle. NFPA requirements are that definitions cannot contain requirements and thedefinitions of noncombustible and limited combustible contain requirements. Therefore this publicinput proposes to put simply a place holder in chapter 3 (definitions) and place the requirementsinto Chapter 4 (General), just as was done in NFPA 101 and 5000. The proposed language isidentical to the language in NFPA 101. If the technical committee wishes it can simply extract thelanguage from NFPA 101. The corresponding sections are: 3.3.67.2 would be extracted from3.3.169.4 and 4.4 would be extracted from 4.6.13.

188


4.3.1 Potential Ignition Sources.

Where work is being performed on piping that contains or has contained gas, the followingshall apply:

(1) Provisions for electrical continuity shall be made before alterations are made in a metallicpiping system.

(2) Smoking, open flames, lanterns, welding, or other sources of ignition shall not bepermitted.

(3) A metallic electrical bond shall be installed around the location of cuts in metallic gaspipes made by other than cutting torches. Where cutting torches, welding, or othersources of ignition are

unavoidable

(1) to be used , it shall be determined that all sources of gas or gas–air mixtures have beensecured and that all flammable gas or liquids have been cleared from the area. Pipingshall be purged as required in Section 8.3 before welding or cutting with a torch isattempted.

(2) Artificial illumination shall be restricted to listed safety-type flashlights and safety lamps.Electric switches shall not be turned on or turned off.






CommitteeStatement:

It is both irrelevant and impossible to determine what is "unavoidable". The committeemodified the language to make the requirement enforceable.

FR-21-NFPA54-2012


189


4.3.1 Potential Ignition Sources.

Where work is being performed on piping that contains or has contained gas, the followingshall apply:

(1) Provisions for electrical continuity shall be made before alterations are made in a metallicpiping system.

(2) Smoking, open flames, lanterns, welding, or other sources of ignition shall not bepermitted.

(3) A metallic electrical bond shall be installed around the location of cuts in metallic gaspipes made by other than cutting torches. Where cutting torches, welding, or othersources of ignition are unavoidable to be used , it shall be determined that all sources ofgas or gas–air mixtures have been secured and that all flammable gas or liquids havebeen cleared from the area. Piping shall be purged as required in Section 8.3 beforewelding or cutting with a torch is attempted.

(4) Artificial illumination shall be restricted to listed safety-type flashlights and safety lamps.Electric switches shall not be turned on or turned off.


What is or is not “unavoidable” is both irrelevant and impossible to determine. To what extent must one go to avoid torches? Who makes that call? The real question is: “will torches be used, or not?”





Committee Statement

Resolution:

Statement:











FR-21-NFPA 54-2012

It is both irrelevant and impossible to determine what is "unavoidable". The committee modified thelanguage to make the requirement enforceable.

190

5.6.1 General.

5.6.1.1 Acceptable Materials.

Materials used for piping systems shall either comply with the requirements of this chapter orshall be acceptable to the authority having jurisdiction.

5.6.1.

2 Used

2 Controls (See definitions 3.3.25 and or 3.3.25.1) Shall be listed and may be manufactured ofaluminum can be used provided that the control is equipped with female threads and are of theTapered NPT type. Filters and strainers made of aluminum may also be used and are subjectto the same thread requirements as controls.

5.6.1.3 Used Materials.

Pipe, fittings, valves, or other materials shall not be used again unless they are free of foreignmaterials and have been ascertained to be adequate for the service intended.

5.6.1.3 Other Materials.

Material not covered by the standards specifications listed herein shall meet the followingcriteria:

(1) Be investigated and tested to determine that it is safe and suitable for the proposedservice

(2) Be recommended for that service by the manufacturer

(3) Be acceptable to the authority having jurisdiction


The current wording in NFPA 54 does not adequately address the differences between fittings and control devices. Controls are clearly defined in NFPA 54 but the current wording drags controls under the umbrella of fittings. We believe the original intent was not to prohibit cast aluminum bodies for controls rather to prohibit the use of cast fittings such as couplings and elbows. The industry has been using cast aluminum bodies for regulators and control valves for many years without issue. All of the ANSI standards that these products are certified too require a minimum distance to shoulder requirement that eliminates the potential for the steel pipe to interfere with the performance of the control device.


Submitter Full Name:Peter Baker

Organization: Maxitrol Company

Submittal Date: Mon Mar 26 08:36:53 EDT 2012

Committee Statement

Resolution:


I, Peter Baker, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in





By checking this box I aff irm that I am Peter Baker, and I agree to be legally bound by the above Copyright Assignment



The committee believes that these public inputs were based on the 2009 edition. This paragraphwas revised in the 2012 edition and the revisions submitted are no longer necessary.

191


5.6.8.4 Metallic Pipe Fittings.

Metallic fittings shall comply with the following:

(1) Threaded fittings in sizes larger than 4 in. (100 mm) shall not be used unless acceptableto the authority having jurisdiction .

(2) Fittings used with steel or wrought-iron pipe shall be steel, brass, bronze, malleable iron,or cast iron.

(3) Fittings used with copper or brass pipe shall be copper, brass, or bronze.

(4) Fittings used with aluminum alloy pipe shall be of aluminum alloy.

(5) Cast-Iron Fittings. Cast-iron fittings shall comply with the following:

(a) Flanges shall be permitted.

(b) Bushings shall not be used.

(c) Fittings shall not be used in systems containing flammable gas–air mixtures.

(d) Fittings in sizes 4 in. (100 mm) and larger shall not be used indoors unlessapproved by the authority having jurisdiction.

(e) Fittings in sizes 6 in. (150 mm) and larger shall not be used unless approved by theauthority having jurisdiction.

(6) Aluminum Alloy Fittings. Threads shall not form the joint seal.

(7) Zinc–Aluminum Alloy Fittings. Fittings shall not be used in systems containingflammable gas–air mixtures.

(8) Special Fittings. Fittings such as couplings, proprietary-type joints, saddle tees, gland-type compression fittings, and flared, flareless, or compression-type tubing fittings shallbe as follows:

(a) Used within the fitting manufacturer's pressure–temperature recommendations

(b) Used within the service conditions anticipated with respect to vibration, fatigue,thermal expansion, or contraction

(c) Installed or braced to prevent separation of the joint by gas pressure or externalphysical damage

(d) Acceptable to the authority having jurisdiction

(9) Pipe fittings shall not be drilled and tapped.






CommitteeStatement:

The committee prohibited the use of threaded fittings greater than 4 inches to reflect currentindustry practices. Piping greater than 4 in nominal diameter is uncommon. It was reported tothe committee that pipe greater than 4 inches is required to be welded. In addition, if pipegreater than 4 inches is required, it can be approved by the Authority Having Jurisdiction underthe equivalency clause. Item 8(c) was deleted because it is vague and therefore unenforceable.It could be interpreted to unnecessarily prohibit fittings that incorporate physical restraints. New

192

item 9 is added because drilling and tapping could create an unsafe connection. The method ofdrilling and tapping a standard fitting results in insufficient material to meet B.1.20.1, AmericanNational Standard for Pipe Threads.

FR-1-NFPA54-2012







(1) Threaded fittings in sizes larger than 4 in. (100 mm) shall not be used unless acceptableto the authority having jurisdiction .


















The NFPA and ICC style manuals agree that the codes and standards should not grant unlimited discretion to the code enforcement authority. Non-uniform interpretations and application of the codes and standards

will surely result from such discretion. What is the basis for the AHJ’s determination that fittings over 4 inch

193

will surely result from such discretion. What is the basis for the AHJ’s determination that fittings over 4 inch

are acceptable? A guess, a whim, a hunch, a SWAG. The NFGC committee could not recall the justification for the 4 inch limit, so how will the code officials know how to make this call? The proper fix is to either eliminate the discretion clause or eliminate item (1) entirely.





Committee Statement

Resolution:

Statement:


FR-1-NFPA 54-2012

The committee prohibited the use of threaded fittings greater than 4 inches to reflect currentindustry practices. Piping greater than 4 in nominal diameter is uncommon. It was reported to thecommittee that pipe greater than 4 inches is required to be welded. In addition, if pipe greater than4 inches is required, it can be approved by the Authority Having Jurisdiction under the equivalencyclause. Item 8(c) was deleted because it is vague and therefore unenforceable. It could beinterpreted to unnecessarily prohibit fittings that incorporate physical restraints. New item 9 isadded because drilling and tapping could create an unsafe connection. The method of drilling andtapping a standard fitting results in insufficient material to meet B.1.20.1, American NationalStandard for Pipe Threads.

194



(1) Threaded fittings in sizes larger than 4 in. (100 mm) shall not be used unless acceptableto the authority having jurisdiction.


















If a fitting has to be braced to keep it from flying apart, should it be allowed? Braced how and with what? Are Dresser style couplings ever used above ground? How does one protect a joint from separation as a result of external physical damage? How severe would the damage have to be to overcome the performance of the brace? The NFPA and ICC style manuals agree that the codes and standards should not grant unlimited discretion to the code enforcement authority. Non-uniform interpretations and application of the codes and standards will surely result from such discretion. What is the basis for the AHJ’s determination that SPECIAL fittings are acceptable? This entire category is wide open, subject to unlimited interpretations and so vague as to allow anything, unless of course, the AHJ steps in and provides some well founded justification to disallow something. Even the category concept of “special fittings” begs for scrutiny. Why is a flare fitting “special” but a threaded tee is not?





Committee Statement

Resolution:

Statement:


FR-1-NFPA 54-2012


196




(2) Fittings used with steel or wrought-iron pipe shall be steel, brass, bronze, malleableiron, or cast iron.








(e) Fittings in sizes 6 in. (150 mm) and larger shall not be used unless approved bythe authority having jurisdiction.









The current wording in NFPA 54 does not adequately address the differences between fittings and control devices. Controls are clearly defined in NFPA 54 but the current wording drags controls under the umbrella of fittings. We believe the original intent was not to prohibit cast aluminum bodies for controls rather to prohibit the use of cast fittings such as couplings and elbows. The industry has been using cast aluminum bodies for regulators and control valves for many years without issue. All of the ANSI standards that these products are certified too require a minimum distance to shoulder requirement that eliminates the potential for the steel pipe to interfere with the performance of the control device.



Public Input No. 4-NFPA 54-2012 [Section No.5.6.1]

Logged as #2 in filemaker


Submitter Full Name:Peter Baker

Organization: Maxitrol Company


197


Committee Statement

Resolution:


I, Peter Baker, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in





By checking this box I aff irm that I am Peter Baker, and I agree to be legally bound by the above Copyright Assignment




The committee believes that these public inputs were based on the 2009 edition. This paragraphwas revised in the 2012 edition and the revisions submitted are no longer necessary.

198




















(9) Pipe fittings shall not be drilled and tapped to create a branch opening.


This practice has been prohibited in plumbing and mechanical codes and was thought to be extinct until some gas suppliers have started making live taps in customer piping on the outlet side of the meter. Field constructed tees made by drilling and tapping an elbow are not listed fittings. The profile of the threads tapped in the side wall of an elbow are such that the threads are incomplete and only 2 threads are possible. Drilling and tapping a curved body will result in threads that are not a complete circle. Fittings are not made this way in the factory and should not be allowed to be made this way in the field. Pipe is not allowed to be drilled and tapped, so why are fittings any different? GTI has investigated this practice to determine if it structurally weakens the fitting.





Committee Statement199

Resolution:

Statement:

First Revision No. 2-NFPA 54-2012 [ Section No. 5.6.10 [Excluding any Sub-

Sections] ]

All pipe flanges shall comply with ANSI one of the following:

1. ANSI /ASME B16.1, Gray Iron Pipe Flanges and Flanged Fittings, Class 25, 125, and250 ;

2. ANSI/ASME B16. 5, Pipe Flanges and Flanged Fittings: NPS 1/2 through NPS 24Metric/Inch Standard ;

3. ANSI/ASME B16. 20, Metallic Gaskets for Pipe Flanges, Ring Joint Spiral Wound andJacketed ; or

4. MSS SP-6, Standard Finishes for Contact Faces of Pipe Flanges and Connecting-EndFlanges of Valves and Fittings. The pressure–temperature ratings shall equal or exceed thatrequired by the application.






Committee Statement: Under review.

FR-2-NFPA 54-2012

FR-1-NFPA 54-2012


200


Add a new section to read: 5.12.1 Emergency Thermal Shutoff Fitting(s). Where a fusible link, thermal-activated shutoff isinstalled with a shutoff valve to automatically stop the flow of gas in the event of fire, the thermal-activated shutoff shall be listed and shall be sized and installed in accordance with the manufacturers'instruction.



MA Regulations Thermal Activated Gas Shut-off.pdf

MA Regulations Thermal Activated Gas Shut-off


State laws such as Massachusetts’ General Law (G.L.C. 164, §75A) require automatic thermal shutoffs for gas “when the inlet piping to an exterior meter exceeds 4" in nominal diameter,” and NFPA 54 should provide guidance regarding the installation of these automatic thermal gas shutoffs or fusible fire safety devices. (A copy of the Massachusetts law is attached.) NFPA standards exist for fusible fire safety devices for oil burning equipment. Yet, similar NFPA standards have not been written for gas service. NFPA 31 standard for the installation of oil-burning equipment requires fusible fire safety devices.


Submitter Full Name:Jean Steckler

Organization: Teco Americas


Committee Statement

Resolution: The code doesn't currently prohibit the installation of a thermal-activated shutoff. The submitter didnot provide the actual listing standard for the thermal-activated shutoff. The committee choosesnot to add a requirement for a listed device without reviewing the listing standard for that device.

201


Add new text to read as follows: 5.13.1 General. Where automatic excess flow valves are installed, they shall be listed for theapplication and shall be sized and installed in accordance with the manufacturers' instructions. 5.13.2 Minimum Supply Pressure. Where one or more excess flow valves are installed in a pipingsystem or appliance connection the minimum pressure at the inlet of each appliance downstream fromthe excess flow valve or valves shall be 5.5 in. w.c. for natural gas and 11 in. w.c. for LP. Thepressure shall be measured with all appliances downstream of the excess flow valve or valvesoperating at their full input rate.


The code currently contains minimum coverage for the installation of excess flow valves (EFV). The current coverage requires the installer to follow manufacturer’s installation instructions for their selection and installation. Since an EFV will have a higher pressure loss than typically installed piping components, the code will need to help ensure that the piping system will have the required capacity to meet the inputs of the connected appliances. AGA is proposing a simplified approach to help ensure that gas piping systems incorporating an EFV are properly designed. The proposed approach allows the continued use of the code’s piping sizing tables without the need to add equivalent lengths to take into account the EFV’s pressure loss. This helps avoid confusion regarding sizing of piping. To address these installations, a minimum inlet pressure to the appliance would be specified. The proposal’s minimum inlet pressure is the minimum pressures specified by most appliance manufactures in their installation instructions. These minimum inlet pressures help ensure proper appliance operation.


Submitter Full Name:JAMES RANFONE

Organization: AMERICAN GAS ASSN


Committee Statement

Resolution: The concerns of the submitter are addressed in the existing 5.4.1, which requires that the pipingsystem is sized and installed to provide adequate gas flow to meet the maximum demand at theminimum pressure required by the appliances.

202

First Revision No. 3-NFPA 54-2012 [ New Section after 6.2 ]

Add note to Tables 6.2(c) and (d) same as note 2 in previous tables and round all entries to threesignificant digits.

Also revise the 4" capacities to match the attached.






Committee Statement: For consistency with other such tables.

FR-3-NFPA 54-2012


203


Add note to Tables 6.2(c) and (d) same as note 2 in previous tables and round all entries to three significantdigits.


For consistency with other such tables.


Submitter Full Name: Gregg Gress



Committee Statement


I, Gregg Gress, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in thisPublic Input (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquireno rights, including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivativeform is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this copyrightassignment.

By checking this box I affirm that I am Gregg Gress, and I agree to be legally bound by the above Copyright Assignment and the termsand conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon mysubmission of this form, have the same legal force and effect as a handwritten signature

Resolution:

Statement:

FR-3-NFPA 54-2012

For consistency with other such tables.

204


7.1.2.1 Cover Requirements.

Underground piping systems shall be installed with a minimum of 12 in. (300 mm) of cover.

(A)

The minimum cover shall be increased to 18 in. (460 mm) if external damage to the pipe ortubing from external forces is likely to result.

(B)

Where a minimum of 12 in. (300 mm) of cover cannot be provided, the pipe shall be installed in conduitor bridged (shielded).

1 Burial Depth. The depth of burial for unprotected underground piping shall be notless than 18 inches. The depth of burial for piping protected by rigid metal conduit orschedule 80 PVC conduit shall be not less than 12 inches.


How does one determine if external damage is “likely to result?” Ask two code officials and get two different answers. This can be simple; either bury it 18 inches, or protect it and bury it 12 inches. What is acceptable “bridging” material? A piece of wood, sheet metal scraps, concrete? The text should call out the means of protection with no uncertainty.





Committee Statement

Resolution:










The proposal would unnecessarily stipulate minimum burial depth of 12" even where protection isprovided. The committee does not agree that rigid metal conduit and schedule 80 pvc conduit arethe only appropriate means of protection and therefore did not modify the code to limit the meansof protection.

205


7.1.5 Piping Through Foundation Wall.

Underground piping, where installed through the outer foundation or basement wall of abuilding, shall be encased in a protective sleeve or protected by an approved device or method.The space between the gas piping and the sleeve and between the sleeve and the wall shallbe sealed to prevent entry of gas and water.7.1.5 Piping Through Foundation Wall.

Underground piping shall be brought above finished ground level before entering abuilding and shall be installed in accordance with Section 7.2.1.


This proposal will establish consistency between the National Fuel Gas Code and the International Fuel Gas Code. The International Fuel Gas Code was changed in 2009 to prohibit the penetration of gas piping through a foundation wall below ground level. The reasons for this are:1. Fuel gas tends to follow the path of least resistance, which often is the trench in which the gas piping is laid. 2. Heaving soil may have an adverse effect on a caulked sleeve, causing it to loosen and permit any leaking gas to penetrate the building.

By allowing gas piping to enter the building only above grade, the potential for gas leaking below grade to enter the building by migrating through the entry of the piping void in the foundation wall will be eliminated.


Submitter Full Name:Bruce Swiecicki

Organization: National Propane Gas Associati

Affilliation: Technology, Standards and Safety Committee


Committee Statement

Resolution: The proposed language would result in forcing the penetration to occur above-grade. In urbanareas, this would require additional protection against damage or tampering. In addition, there is apotential for an increased hazard for installations where appliances are installed in the basement.Any requirement to bring the gas piping in above-grade would result in additional fittings and jointswhere potential leaks could occur. While eliminating the potential for gas to migrate along the gasline, that is not the only potential path for gas to migrate into a building.

206


7.2.5.4 Piping on Roof Tops. Piping supports shall be attached to the piping toprevent displacement of the supports.

Gas piping installed on the roof surfaces shall be elevated above the roof surface and shall besupported in accordance with Table 7.2.5.2.


It is very common to see gas piping run across flat roofs and supported by 4” x 4” treated wood blocks. The blocks are often missing, kicked out, swiped for other purposes or otherwise displaced resulting in loss of support of the gas piping. A simple pipe strap attached to the blocks will prevent this.





Committee Statement

Resolution:










The proponent does not substantiate the extent of the problem. In addition, the phrase "preventdisplacement" is unenforceable.

207


7.2.6 Removal of Piping.

Where piping containing gas is to be removed, the line first shall be disconnected from allsources of gas and then thoroughly purged with air, water, or inert gas before any cutting orwelding is done.






CommitteeStatement:

The scope of chapter 7 is installation of piping, therefore removal of piping is not appropriateto chapter 7. Removal from service is covered by 8.3.

FR-4-NFPA 54-2012


208


7.2.6 Removal of Piping.

Where piping containing gas is to be removed, the line first shall be disconnected from allsources of gas and then thoroughly purged with air, water, or inert gas before any cutting orwelding is done.


As it is currently written, Section 7.2.6 contradicts the purging requirements of Section 8.3. It makes no mention of venting off pressure outside to a safe location prior to removing the piping. It also states that "the line first shall be disconnected" which in this case most likely means isolated, but it could also be interpreted as breaking a flange or union on a line containing pressurized gas that has not been vented or purged. It also allows the section of pipe to be purged using air, where 8.3 requires an inert gas. Section 8.3 provides clear guidance on how to safely inert a natural gas piping system prior to taking it out of service. To avoid confusing the reader, I would suggest moving 7.2.6 to a subset of 8.3.1.1 to keep the purging information in one place and consistent (see linked proposal - Public Input No. 30).


Submitter Full Name:MIKE BETHANY

Organization: CEC COMBUSTION SAFETY


Committee Statement

Resolution:

Statement:


I, MIKE BETHANY, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in





By checking this box I aff irm that I am MIKE BETHANY, and I agree to be legally bound by the above Copyright Assignment



FR-4-NFPA 54-2012

The scope of chapter 7 is installation of piping, therefore removal of piping is not appropriate tochapter 7. Removal from service is covered by 8.3.

209

Public Input No. 55-NFPA 54-2012 [ New Section after 7.2.7 ]

Add a new section to read: 7.2.8. Tapping Prohibited. Pipe shall not be drilled and tapped to make branch connections forany purpose.


Such practice has historically been prohibited in codes and standards and was extinct until recently revived. Some gas suppliers are drilling and tapping elbows (hot taps) in piping downstream of gas meters. A companion proposal attempts to prohibit this practice and this proposal applies the pipe wall. There is insufficient wall thickness for threads and the curvature of the pipe wall will result in incomplete threads. Such threads are subject to corrosion failure and this practice will not comply with ASME B1.20.1 for metallic pipe threads.





Committee Statement

Resolution:










Subsection 5.6.7 contains requirements for pipe threads, and any "drilling and tapping" mustcomply with the requirements for metallic pipe threads. Therefore, it is possible that a pipe withsufficient wall thickness could be drilled and tapped and still comply with 5.6.7.

210


7.3.2 Fittings in Concealed Locations.

Fittings installed in concealed locations shall be limited to the following types:

(1) Threaded elbows, tees, couplings, caps and

couplings

(1) plugs

(2) Brazed fittings

(3) Welded fittings

(4) Fittings listed to ANSI LC 1/CSA 6.26, Fuel Gas Piping Systems Using CorrugatedStainless Steel Tubing (CSST) , or ANSI LC 4, Press-Connect Copper and Copper AlloyFittings for Use in Fuel Gas Distribution Systems






CommitteeStatement:

Threaded caps and plugs are used in concealed piping as a result of remodeling and buildingalterations. There is no reason to prohibit threaded caps and plugs in locations where threadedelbows, tees and couplings are allowed. Bushings and unions are prohibited by this section forvalid reasons, but not caps and plugs.

FR-5-NFPA54-2012


211


7.3.2 Fittings in Concealed Locations.

Fittings installed in concealed locations shall be limited to the following types:

(1) Threaded elbows, tees, couplings, caps and couplings plugs

(2) Brazed fittings

(3) Welded fittings

(4) Fittings listed to ANSI LC 1/CSA 6.26, Fuel Gas Piping Systems Using CorrugatedStainless Steel Tubing (CSST), or ANSI LC 4, Press-Connect Copper and Copper AlloyFittings for Use in Fuel Gas Distribution Systems


Threaded caps and plugs are used in concealed piping as a result of remodeling and building alterations. There is no reason to prohibit threaded caps and plugs in locations where threaded elbows, tees and couplings are allowed. Bushings and unions are prohibited by this section for valid reasons, but not caps and plugs.





Committee Statement

Resolution:

Statement:










FR-5-NFPA 54-2012

Threaded caps and plugs are used in concealed piping as a result of remodeling and buildingalterations. There is no reason to prohibit threaded caps and plugs in locations where threadedelbows, tees and couplings are allowed. Bushings and unions are prohibited by this section forvalid reasons, but not caps and plugs.

212

First Revision No. 6-NFPA 54-2012 [ New Section after 7.3.5.2 ]

Add new section as follows: 7.3.6 Shutoff Valves in Tubing Systems. Where shutoff valves in tubing systems are installedwithin wall, floor or ceiling cavities and are accessed or operated from outside of such cavities, suchvalves shall be rigidly and securely supported independently of the tubing.






Committee Statement:Shutoff valves in tubing systems must be installed such thatthey will not cause damage to the tubing system duringinstallation or operation of the shutoff valve.

FR-6-NFPA 54-2012 The committee did notaccept the second sentence becauseoutlets are covered in 7.7.

Public Input No. 57-NFPA 54-2012 [New Section after 7.3.5.2]

213


Add new section as follows: 7.3.6 Valves and Outlets. Where shutoff valves are installed within wall, floor or ceiling cavities andare accessed or operated from outside of such cavities, such valves shall be rigidly and securelysupported independently of the tubing so as to prevent movement and rotation of the valve in anydirection. Gas outlet pipes that project through wall, floor or ceiling surfaces shall be rigidly andsecurely supported independently of the tubing so as to prevent movement and rotation of the outlet inany direction.


It is very common to see key- operated gas shutoff valves (T-handle) installed in wall and floor cavities with CSST and copper tubing. The installers slap a pipe strap, drive-in talon or a bent nail on the tubing on each side of the valve and expect the tubing to hold the valve in a fixed position as the valve is operated. The resulting force causes the tubing to flex which applies stresses never intended for the tubing. Installers often make a transition from CSST or copper to an iron pipe elbow or tee within a cavity with an iron pipe nipple run through the wall or floor surface to create an appliance gas outlet. The elbow or tee is poorly supported such that any rotational force applied to the nipple “stub-out” causes stresses in the tubing. CSST manufacturers offer outlet fittings that are designed with integral supports for this purpose, but installers will fashion their own from pipe nipples and elbows or tees because of the cost savings. In the case of CSST systems, it would be preferable for the code to require that pre-manufactured outlet devices be used in all cases. That way, there would be no question as to what kind of support is behind the wall.





Committee StatementResolution:

Statement:










FR-6-NFPA 54-2012 The committee did not accept the second sentence because outlets arecovered in 7.7.

Shutoff valves in tubing systems must be installed such that they will not cause damage to thetubing system during installation or operation of the shutoff valve.

214


7.7.2.2

Appliance shutoff valves installed in fireplaces shall be removed and the piping capped gastightwhere the fireplace is used for solid fuel burning Where a solid fuel-burning fireplace has gaspiping extending into the firebox and the fireplace is to be used for burning solid fuel, the gaspiping shall be removed from the firebox and the opening through which the piping entered thefirebox shall be closed so as to restore the integrity of the firebox .


Building wood fires in a firebox that contains a gas outlet pipe is a risk that can easily be avoided. The code does not intend to make it easy and convenient for homeowners to switch back and forth from gas logs sets to wood fires at their whim. I have seen gas stub-outs (outlets) in fire boxes that were exposed to beds of coals and embers for long periods and the caps were nearly welded on from the heat and impossible to remove without damaging the pipe. Why risk catastrophe by leaving a live gas outlet in the fire box? We all know what happens to gas log lighters when they are exposed to wood fires; they sag, deform and decompose from extreme heat. The log lighters are made of the same material as the iron pipe gas outlets in the firebox.















The proposed language would result in prohibition of log-lighters and similar equipment. This doesnot appear to be the intent of the submitter. The committee disagrees that gas log lighters orsimilar equipment should be prohibited.

215


7.13.3 * Prohibited Use.

Gas piping shall not be used as a grounding conductor or electrode.


Letter dated April 5, 2012, Sub Change proposal for the National Fuel Gas Code, and Technical Paper by Thomas A. Rorro, "Hot Gas" © 2012. Note: Supporting material is available for review at NFPA Headquarters.


Submitter Full Name:THOMAS RORRO

Organization: Thomas A. Rorro, P.E.

Submittal Date: Thu Apr 26 07:14:53 EDT 2012

Committee Statement

Resolution:


I, THOMAS RORRO, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights





By checking this box I aff irm that I am THOMAS RORRO, and I agree to be legally bound by the above Copyright



signature

The intent of the prohibition is to prevent the intentional use of the gas pipe as the groundingconductor. The committee recognizes that it may become an inadvertent conductor under faultconditions, but that does not invalidate the requirement as written.

216


8.2.3* Leak Check.

Immediately after the gas is turned on into a new system or into a system that has beeninitially restored after an interruption of service, the entire gas piping system shall be checkedfor leakage. Where leakage is indicated, the gas supply shall be shut off until the necessaryrepairs have been made.


Revise so to conform to my proposed change in the definition, Leak Check, 3.3.64. Respectfully, this submitter maintains that there was no justification for the change made in this definition in the 2009 edition revision. A leak check that only includes the piping system - and not the appliance connector and appliance controls - is no "leak check". From my 36 years of experience, the appliances and the appliance connectors are as dynamic (if not more dynamic in terms of potential leak sources) as the piping system, when introducing or restoring gas service. While it has been commented that a very small amount of gas leakage is allowed for gas (appliance) valves, the same holds true for manual shut-off valves in-line (reference ANSI ZS21.15). There have been incidents where the physical act of reaching behind an appliance, or moving the appliance, to reach the line shut-off valve - per the existing requirements - have in fact damaged the appliance connector.





Committee Statement

Resolution:


I, TIM DUNN, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in





By checking this box I aff irm that I am TIM DUNN, and I agree to be legally bound by the above Copyright Assignment and

the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic


Subsection 8.2.4 requires that the connection to the appliance is checked for leakage prior toputting the appliance into operation. Consequently, section 8.2, taken as a whole, addresses thesubmitter's concerns without modification.

217


8.3.1.1 Removal from Service.

Where existing gas piping is opened, the section that is opened shall first be isolated fromthe gas supply and then the line pressure vented in accordance with 8.3.1.3. Where Theremaining fuel gas in the piping shall be displaced with an inert gas where either of thefollowing conditions apply:

(1) Gas piping meeting the criteria of Table 8.3.1 is

removed from service, the residual fuel gas in the piping shall be displaced with an inert gas.

opened to atmosphere

(2) Piping containing gas is to be removed by means of cutting, welding, or other hot work


This change would remove the ambiguity surrounding the term "removal from service". Removing a gas line from service does not necessarily mean that the line will be opened or cut into. This would state that if you are going to open the line or cut into it, then you must adhere to the following steps. It also clarifies the sequence of steps that must be performed before piping containing fuel gas can be opened or removed. At no point does the code define what "removal from service" means, nor does it define "residual fuel gas". This change attempts to clarify those terms. It also requires a greater level of safety when cutting into gas piping with torches and other hot work methods – regardless of the size of the pipe (moved from 7.2.6 - see Public Input No. 29).



Public Input No. 29-NFPA 54-2012 [Section No.7.2.6]

Removes 7.2.6 and moves contents to8.3.1.1


Submitter Full Name:MIKE BETHANY

Organization: CEC COMBUSTION SAFETY




I, MIKE BETHANY, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in





By checking this box I aff irm that I am MIKE BETHANY, and I agree to be legally bound by the above Copyright Assignment



The proposal would result in requiring small piping systems to be inerted if hot work is to beperformed. Subsection 7.2.6 previously required only purging with air, inert gas, or water. Thecommittee does not agree that inerting small piping systems should be required whenever hotwork is to be performed. In addition, section 4.3 provides requirements for prevention of accidentalignition.

218


Add a new section to read: Propane Appliances in Below Grade Installations. Listed residential flammable gas detectors,with set alarms for propane vapors, shall be placed with propane appliances in below gradeinstallations, such as basements, pits or crawl spaces, and this detector shall be mounted per thedetector manufacturer instructions.


With propane being heavier than air, leaks in remote areas may go undetected by the occupants. While recent testing of propane released in a cellar indicates eventual mixing, the time taken to be considered well mixed is critically long, especially when flammable concentrations may reach a competent ignition source beforehand. The benefit of such a supplemental device will be that persons inside the structure, though away from the leak site, will become aware of the escape of fugitive gas by the alarming detector. While some may raise concerns over the reliability of such gas detectors, as supplemental detection devices, it should be pointed out that in specific and foreseeable circumstances, the propane odorant itself may not be an effective warning agent - please refer to NFPA 58, Section 4.2, A.4.2.1. There have been well chronicled episodes where the odorant has not been added to propane loads, plus it has been well-documented that new containers when placed in service have a high potential for odorant depletion. In recent years, a number of appliance manufactures have recommended the use of approved flammable gas detectors for below grade installations in their installation and care-and use manuals.





Committee Statement

Resolution: As the proponent notes in his substantiation, there are questions regarding the reliability of fuelgas detectors and the possibility of nuisance alarms ocurring. Repetetive nuisance alarms havebeen shown to discourage the use of warning devices, resulting in ignoring or disabling the device.The committee does not believe that sufficient justification has been submitted to warrant requiringthe installation of fuel gas detectors simply because propane is heavier than air. In addiiton, therehas been no evidence presented to support the position that propane appliances installed belowgrade present a unique hazard over any other installation.

219


9.4.4 Additional Provisions.

Also see 9.1.23 , 9.2.1 , and 12.4.3 .






CommitteeStatement:

The list of cross-references is not necessary. It is up to installers to comply withapplicable provisions of the code.

FR-31-NFPA 54-2012

220


Add a new section to read: 9.6.4.2 Manual shutoff valves shall be positioned, or oriented, so that when closed the valve's handledoes not protrude toward the appliance housing.


This proposal is a safety measure so to prevent the accidental opening of the manual valve by movement of hte appliance. In the case of an unused appliance outlet, the code specifically requires the outlet to be capped (Section 7.7.3). However, there have been certainly been incidents when a gas appliance has been removed from service - the best examples gas range or clothes dryer being replaced with electric models - unqualified persons have simply disconnect the connector at the closed shut-off valve. Uncapped, the shutoff valve can inadvertently be opened, by appliance movement, especially with the valve's 90 degree handle facing out.





Committee Statement

Resolution:


I, TIM DUNN, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in





By checking this box I aff irm that I am TIM DUNN, and I agree to be legally bound by the above Copyright Assignment and

the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic



10.3.7.4

Where a furnace is installed so supply ducts carry air circulated by the furnace to areasoutside the space containing the furnace, the return air shall also be handled by a duct(s)sealed to the furnace casing and terminating outside the space containing the furnace. doesnot need to be ducted; but the venting needs to be protected by a sensitive airflow directionsensor which will shut down the furnace when the sensor indicates impaired venting..



The proposed language recognizes only 90 deg handles. There are gas shutoff valves availableprovided with "t" or "butterfly" handles. In addition, the language "protrude toward" is vague.


Open221


The rational for the change is to stop the industry fraud of claiming efficient performance in spite of the fact the industry can only produce a circulation airflow in an installed system which is a small fraction of the airflow used to measure the appliance efficiency. The requirement of a sealed return air duct is an unnecessary prohibitive requirement. The National Fuel Gas Committee consists of a group of experts whose forte is the safe use of gaseous fuels and probably no expertise in moving large quantities of air to effectively remove the heating and cooling from central appliances. A prime concern of the Committee is the proper venting of combustion appliances which I share; but I and all consumers are also interested in effective performance from central combustion heating as well as air conditioning. The Committee has shown little interest or rather an irresponsible they do not care. The effectiveness of a central system is directly proportional to the amount of airflow in the air distribution system and must be increased approximately 10X over present typical values. I have spent decades in devising a highly reliable practical sensor means to precisely sense the distinction between the wanted negative draft and the onset of an unwanted positive draft. This sensor is a very sensitive airflow direction indicator. The airflow from the vicinity of an operating appliance into the flue means that air pressure in the vicinity of the appliance is higher than in the flue and the sensor is indicative of that condition. If the airflow should cease or reverse by a pressure differential as low as 0.001 inches of water, the sensor will give the opposite indications. This is a very sensitive indicator of a negative from the opposite unwanted positive draft. When the sensor indicates even a very small undesired positive draft, the appliance is shut down and an alarm sounded. The sensor is very reliable with a life of decades, but more about that and sensor operation appears in the supporting document (Making ineffective heating and cooling systems effective). The heating and cooling industry can use this sensor with the operating combustion appliance and implement the circualtion air duct system in whatever manner they consider prudent. There is no necessity to adhere to paragraph 10.10.5 (Circulation Air) and paragraph 10.3.7.4 (Furnace Plenums and Air Ducts) in the 2012 National Fuel Gas Code. The industry will use their developed expertise in implementing air circulation system which will not trip the sensor with the appliance operating and the circulation airflow adequate to remove the heating from the appliance. There is no reason for the National Fuel Gas Code to be involved in the design of the air circulation system because venting safety is protected by the sensor. I am asking the Committee to approve the use of this sensor for detecting combustion appliance venting malfunction. The use of this sensor will eliminate the continued venting malfunction as a result of any power fans operating within the home envelope. I am asking the Committee to eliminate the contents of paragraphs 10.10.5 Circulation Air and 10.3.7.4. Those paragraphs should simply state that the return does not need to be ducted into the fan intake; but the combustion vent must be protected by a sensitive airflow direction sensor. It will allow vast improvements of airflow in the air distribution of heating and cooling. It will permit the industry to honestly claim operating efficiencies where now it is basically consumer fraud.

Submitter Information VerificationSubmitter Full Name:MILLARD HABEGGER

Organization: Habegger Controls


Committee Statement

Resolution:

signature

Where a furnace is located in accordance with this paragraph, the return air ducts are a criticalsafety feature. The return air duct ensures proper pressure balance for the venting system. Toutilize a safety device or sensor which may alert to the fact that an unsafe situation has arisen isnot as effective as the existing code language. The existing code language ensures that safeoperation is maintained by design. Although the proponent maintains that the use of his device willimprove the efficiency of the furnace, NFPA 54 is a safety code, and no evidence has beenpresented to demonstrate that the device offers an equivalent or superior level of safety over thecurrent requirement.

222


10.3.7.4

Where a furnace is installed so supply ducts carry air circulated by the furnace to areasoutside the space containing the furnace not connected by a return air path , the return airshall also be handled by a duct(s) sealed to the furnace casing and terminating outside thespace containing the furnace.


I recently became aware that paragraph 10.3.7.4 has been interpreted to require a return air duct between connected rooms served by a closet furnace in a small apartment. To my understanding that is not the intent of the requirement. I understand that the intent of the requirement is to required return air ducts. This change will clarify the requirement to be consistent with the intent.


Submitter Full Name:Theodore Lemoff

Organization: TLemoff Engineering


Committee Statement

Resolution:


I, Theodore Lemoff, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights





By checking this box I aff irm that I am Theodore Lemoff, and I agree to be legally bound by the above Copyright



signature


The committee believes that a louvered door or "return air path" does not provide an equivalentlevel of safety as a ducted return system.

223

10.10.5 Circulating Air.

Where a duct furnace is installed so that supply ducts carry air circulated by the furnace toareas outside the space containing the furnace, the return air shall also be handled by aduct(s) sealed to the furnace casing and terminating outside the space containing thefurnace does not need to be ducted; but the furnace venting needs to be protected by asensitive airflow direction sensor which will shut down the furnace when the sensor indicatesimpaired venting . The duct furnace shall be installed on the positive-pressure side of thecirculating air blower.



Open


The rational for the change is to stop the industry fraud of claiming efficient performance in spite of the fact the industry can only produce a circulation airflow in an installed system which is a small fraction of the airflow used to measure the appliance efficiency. The requirement of a sealed return air duct is an unnecessary prohibitive requirement. The National Fuel Gas Committee consists of a group of experts whose forte is the safe use of gaseous fuels and probably no expertise in moving large quantities of air to effectively remove the heating and cooling from central appliances. A prime concern of the Committee is the proper venting of combustion appliances which I share; but I and all consumers are also interested in effective performance from central combustion heating as well as air conditioning. The Committee has shown little interest or rather an irresponsible they do not care. The effectiveness of a central system is directly proportional to the amount of airflow in the air distribution system and must be increased approximately 10X over present typical values. I have spent decades in devising a highly reliable practical sensor means to precisely sense the distinction between the wanted negative draft and the onset of an unwanted positive draft. This sensor is a very sensitive airflow direction indicator. The airflow from the vicinity of an operating appliance into the flue means that air pressure in the vicinity of the appliance is higher than in the flue and the sensor is indicative of that condition. If the airflow should cease or reverse by a pressure differential as low as 0.001 inches of water, the sensor will give the opposite indications. This is a very sensitive indicator of a negative from the opposite unwanted positive draft. When the sensor indicates even a very small undesired positive draft, the appliance is shut down and an alarm sounded. The sensor is very reliable with a life of decades, but more about that and sensor operation appears in the supporting document (Making ineffective heating and cooling systems effective). The heating and cooling industry can use this sensor with the operating combustion appliance and implement the circualtion air duct system in whatever manner they consider prudent. There is no necessity to adhere to paragraph 10.10.5 (Circulation Air) and paragraph 10.3.7.4 (Furnace Plenums and Air Ducts) in the 2012 National Fuel Gas Code. The industry will use their developed expertise in implementing air circulation system which will not trip the sensor with the appliance operating and the circulation airflow adequate to remove the heating from the appliance. There is no reason for the National Fuel Gas Code to be involved in the design of the air circulation system because venting safety is protected by the sensor. I am asking the Committee to approve the use of this sensor for detecting combustion appliance venting malfunction. The use of this sensor will eliminate the continued venting malfunction as a result of any power fans operating within the home envelope. I am asking the Committee to eliminate the contents of paragraphs 10.10.5 Circulation Air and 10.3.7.4. Those paragraphs should simply state that the return does not need to be ducted into the fan intake; but the combustion vent must be protected by a sensitive airflow direction sensor. It will allow vast improvements of airflow in the air distribution of heating and cooling. It will permit the industry to honestly claim operating efficiencies where now it is basically consumer fraud.


Submitter Full Name:MILLARD HABEGGER

Organization: Habegger Controls


Committee Statement224

Resolution:


I, MILLARD HABEGGER, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full

rights in copyright in this Public Input (including both the Proposed Change and the Statement of Problem and Substantiation). I




By checking this box I aff irm that I am MILLARD HABEGGER, and I agree to be legally bound by the above Copyright



signature

First Revision No. 28-NFPA 54-2012 [ Section No. 10.14 ]


10.14.1

Listed domestic hot plates and laundry stoves installed on combustible surfaces shall be seton their own legs or bases. They shall be installed with minimum horizontal clearances of 6 in.(150 mm) from combustible material.

10.14.2

Unlisted domestic hot plates and laundry stoves shall be installed with horizontal clearancesto combustible material of not less than 12 in. (300 mm). Combustible surfaces under unlisteddomestic hot plates and laundry stoves shall be protected in an approved manner.

10.14.3

The vertical distance between tops of all domestic hot plates and laundry stoves andcombustible material shall be at least 30 in. (760 mm).






CommitteeStatement:

The committee is not aware that these units are being produced and installed. The committeeinvites comment from anyone who may be installing or producing such appliances.

FR-28-NFPA54-2012


The proposed modification is inconsistent with the method of installation of a duct furnace. Bydefinition, a duct furnace is entirely located within a duct system.

225

10.15.

1 Floor-Mounted Units

1 Installation .

Listed floor-mounted and built-in household cooking appliances shall be installed inaccordance with the manufacture’s installation instructions.

10.15.

1.1 Clearance from Combustible Material. The

2 Clearances. The clearances specified as follows shall not interfere with combustion air,accessibility for operation, and servicing:

(1) Listed floor-mounted household cooking appliances, where installed on combustiblefloors, shall be set on their own bases or legs

and shall be installed in accordance with the manufacturer's installation instructions

(1) .

(2) Listed household cooking appliances with listed gas room heater sections shall beinstalled so that the warm air discharge side shall have a minimum clearance of 18 in.(460 mm) from adjacent combustible material. A minimum clearance of 36 in. (910 mm)shall be provided between the top of the heater section and the bottom of cabinets.

Listed household cooking appliances that include a solid or liquid fuel–burning section shall bespaced from combustible material and otherwise installed in accordance with the manufacturer'sinstallation instructions for the supplementary fuel section of the appliance.

(3) Unlisted floor-mounted household cooking appliances shall be installed with at least a 6 in.(150 mm) clearance at the back and sides to combustible material. Combustible floors underunlisted appliances shall be protected in an approved manner.

(4) Unlisted built-in household cooking appliances shall not be installed in, or adjacent to,unprotected combustible material.

10.15.

1.2 Vertical

2.1* Vertical Clearance Above Cooking Top.

Household cooking appliances shall have a vertical clearance above the cooking top of notless than 30 in. (760 mm) to combustible material or metal cabinets. A minimum clearance of24 in. (610 mm) is permitted when one of the following is installed:

(1) The underside of the combustible material or metal cabinet above the cooking top is

protected with not less than 1 ⁄ 4 in. (6 mm) insulating millboard covered with sheetmetal not less than 0.0122 in. (0.3 mm) thick.

(2) A metal ventilating hood of sheet metal not less than 0.0122 in. (0.3 mm) thick is

installed above the cooking top with a clearance of not less than 1 ⁄ 4 in. (6 mm)between the hood and the underside of the combustible material or metal cabinet, andthe hood is at least as wide as the appliance and is centered over the appliance.

(3) A listed cooking appliance or microwave oven is installed over a listed cooking applianceand conforms to the terms of the upper appliance’s manufacturer’s installationinstructions.

10.15.

1.

3 Level Installation.

Cooking appliances shall be installed so that the cooking top , broiler pan, or oven racks arelevel.

226






CommitteeStatement:

To eliminate antiquated and reduce duplicative code text and add an illustrative diagram inrelated annex material. The code change consolidates separate floor-mounted and built-insections into one. The illustrative diagram would help explain the vertical clearancerequirements.

FR-22-NFPA54-2012



227

10.15.1 Floor-Mounted Units 1 Installation .

10.15.1.1 Clearance from Combustible Material. Listed floor-mounted and built-inhousehold cooking appliances shall be installed in accordance with themanufacture’s installation instructions.

10.15.1.1 The clearances specified as follows shall not interfere with combustion air,accessibility for operation, and servicing:

(1) Listed floor-mounted household cooking appliances, where installed on combustiblefloors, shall be set on their own bases or legs

and shall be installed in accordance with the manufacturer's installation instructions

(1) .

(2) Listed household cooking appliances with listed gas room heater sections shall beinstalled so that the warm air discharge side shall have a minimum clearance of 18 in.(460 mm) from adjacent combustible material. A minimum clearance of 36 in. (910 mm)shall be provided between the top of the heater section and the bottom of cabinets.

Listed household cooking appliances that include a solid or liquid fuel–burning section shallbe spaced from combustible material and otherwise installed in accordance with themanufacturer's installation instructions for the supplementary fuel section of the appliance.

(3) Unlisted floor-mounted household cooking appliances shall be installed with at least a 6 in.(150 mm) clearance at the back and sides to combustible material. Combustible floors underunlisted appliances shall be protected in an approved manner.

(4) Unlisted built-in household cooking appliances shall not be installed in, or adjacent to,combustible material.

10.15.1.2 Vertical 2* Vertical Clearance Above Cooking Top.

Household cooking appliances shall have a vertical clearance above the cooking top of notless than 30 in. (760 mm) to combustible material or metal cabinets. A minimum clearance of24 in. (610 mm) is permitted when one of the following is installed:

(1) The underside of the combustible material or metal cabinet above the cooking top isprotected with not less than 1⁄4 in. (6 mm) insulating millboard covered with sheet metalnot less than 0.0122 in. (0.3 mm) thick.

(2) A metal ventilating hood of sheet metal not less than 0.0122 in. (0.3 mm) thick isinstalled above the cooking top with a clearance of not less than 1⁄4 in. (6 mm) betweenthe hood and the underside of the combustible material or metal cabinet, and the hood isat least as wide as the appliance and is centered over the appliance.

(3) A listed cooking appliance or microwave oven is installed over a listed cooking applianceand conforms to the terms of the upper appliance’s manufacturer’s installationinstructions.

10.15.1.3 Level Installation.

Cooking appliances shall be installed so that the cooking top, broiler pan, or oven racks arelevel.


To eliminate antiquated and reduce duplicative code text and add an illustrative diagram. The code change consolidates separate floor-mounted and built-in sections into one. The illustrative diagram would help explain the vertical clearance requirements.




228


Committee Statement

Resolution:

Statement:


I, JAMES RANFONE, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights





By checking this box I aff irm that I am JAMES RANFONE, and I agree to be legally bound by the above Copyright



signature

FR-22-NFPA 54-2012

To eliminate antiquated and reduce duplicative code text and add an illustrative diagram in relatedannex material. The code change consolidates separate floor-mounted and built-in sections intoone. The illustrative diagram would help explain the vertical clearance requirements.

229


10.15.2 Built-In Units. 10.15.2.1 Installation. Listed built-in household cooking appliances shall be installed in accordance with the manufacturer’sinstallation instructions. The installation shall not interfere with combustion air, accessibility foroperation, and servicing. Unlisted built-in household cooking appliances shall not be installed in, oradjacent to, combustible material.

10.15.2.2 Vertical Clearance. Built-in top (or surface) cooking appliances shall have a vertical clearance above the cooking top ofnot less than 30 in. (760 mm) to combustible material or metal cabinets. A minimum clearance of 24in. (610 mm) shall be permitted when one of the following is installed:

(1) The underside of the combustible material or metal cabinet above the cooking top is protected

with not less than 1 ⁄ 4 in. (6 mm) insulating millboard covered with sheet metal not less than0.0122 in. (0.3 mm) thick.

(2) A metal ventilating hood of sheet metal not less than 0.0122 in. (0.3 mm) thick is installed

above the cooking top with a clearance of not less than 1 ⁄ 4 in. (6 mm) between the hoodand the underside of the combustible material or metal cabinet, and the hood is at least aswide as the appliance and is centered over the appliance.

(3) A listed cooking appliance or microwave oven is installed over a listed cooking appliance andconforms to the terms of the upper appliance manufacturer’s installation instructions.

10.15.2.3 Horizontal Clearance. The minimum horizontal distance from the center of the burner head(s) of a listed top (or surface)cooking appliance to vertical combustible walls extending above the top panel shall be not less thanthat distance specified by the permanent marking on the appliance.

10.15.2.4 Level Installation. Built-in household cooking appliances shall be installed so that the cooking top, broiler pan, or ovenracks are level.






CommitteeStatement:

To eliminate antiquated and reduce duplicative code text and add an illustrative diagram. Thecode change consolidates separate floor-mounted and built-in sections into one. The illustrativediagram would help explain the vertical clearance requirements.

FR-23-NFPA54-2012


230

10.15.2 Built-In Units. 2

10.15.2.1 Installation.

Listed built-in household cooking appliances shall be installed in accordance with themanufacturer’s installation instructions. The installation shall not interfere with combustion air,accessibility for operation, and servicing. Unlisted built-in household cooking appliances shallnot be installed in, or adjacent to, combustible material.

10.15.2.2 Vertical Clearance.

Built-in top (or surface) cooking appliances shall have a vertical clearance above the cookingtop of not less than 30 in. (760 mm) to combustible material or metal cabinets. A minimumclearance of 24 in. (610 mm) shall be permitted when one of the following is installed:

(1) The underside of the combustible material or metal cabinet above the cooking top is

protected with not less than 1 ⁄ 4 in. (6 mm) insulating millboard covered with sheetmetal not less than 0.0122 in. (0.3 mm) thick.

(2) A metal ventilating hood of sheet metal not less than 0.0122 in. (0.3 mm) thick is

installed above the cooking top with a clearance of not less than 1 ⁄ 4 in. (6 mm)between the hood and the underside of the combustible material or metal cabinet, andthe hood is at least as wide as the appliance and is centered over the appliance.

(3) A listed cooking appliance or microwave oven is installed over a listed cooking applianceand conforms to the terms of the upper appliance manufacturer’s installationinstructions.

10.15.2.3 Horizontal Clearance.

The minimum horizontal distance from the center of the burner head(s) of a listed top (orsurface) cooking appliance to vertical combustible walls extending above the top panel shallbe not less than that distance specified by the permanent marking on the appliance.

10.15.2.4 Level Installation.

Built-in household cooking appliances shall be installed so that the cooking top, broiler pan,or oven racks are level.








Statement:







FR-23-NFPA 54-2012

To eliminate antiquated and reduce duplicative code text and add an illustrative diagram. The codechange consolidates separate floor-mounted and built-in sections into one. The illustrative diagramwould help explain the vertical clearance requirements.


231




signature


10.24 Stationary Gas Engines.

10.24.1 The installation of gas engines, including generators, shall conform to NFPA 37,Standard for the Installation and Use of Stationary Combustion Engines and Gas Turbines.

10.24.

1

2 Stationary gas generators shall meet the requirements of UL 2200, Standard for Safety forStationary Engine Generator Assemblies.

10.2.4.3

Stationary gas engines shall not be rigidly connected to the gas supply piping.


Stationary generators can cause very severe fires. NFPA 37 addresses (albeit very vaguely) the distance from combustible construction. UL 2200 addresses other requirements needed for safe operation of the generators. In fact, the major manufacturers of generators probably comply with UL 2200 that is not necessarily the case for smaller manufacturers and imports. This change will add a layer of safety without introducing excessive barriers.





Committee Statement

Resolution:










signature

The subsection covers installation of any stationary engine, regardless of application. Thecommittee does not believe there is any reason to specify generators. In addition, since the codecovers only the installation of the engine, the committee does not believe there is any reason toreference UL 2200. The committee believes the reference to UL 2200 would be more appropriate inNFPA 1, NFPA 70 or NFPA 37.

232


12.5.1

The type of venting system to be used shall be in accordance with Table 12.5.1.

Table 12.5.1 Type of Venting System to Be Used

Appliances Type of Venting SystemLocation of

Requirements

Listed Category Iappliances

Type B gas vent 12.7

Listed appliancesequipped with draft hood

Chimney 12.6

Appliances listed for usewith Type B gas vent

Single-wall metal pipe 12.8

Listed chimney liningsystem for gas venting

12.6.1.3

Special gas vent listedfor these appliances

12.5.4

Listed vented wallfurnaces

Type B-W gas vent 12.7, 10.27

Category II appliances

Category III appliances

Category IV appliances

As specified or furnished funishedby manufacturers of listedappliances

12.5.2, 12.5.4

Incinerators -In accordance withNFPA 82

Appliances that can beconverted to use solid fuel

Chimney 12.6

Unlisted combination gas-and oil-burning appliances

-

Combination gas- andsolid fuel–burningappliances

-

Appliances listed for usewith chimneys only

-

Unlisted appliances -

Listed combination gas-and oil-burning appliances

Type L vent

Chimney

12.7

12.6

Decorative appliance invented fireplace

Chimney 10.6.2

Gas-fired toilets Single-wall metal pipe 12.8, 10.25.3

Direct vent appliances - 12.3.5

Appliances with integralvents

- 12.3.6



Open 233


The ANSI Z21 series of standards for heating appliances specify the use of “listed” vents. Today, various types of PVC plastic pipes are used for the purpose of venting heating appliances. They have not been tested nor are they listed to any standard for exhausting combustion flue gases. As per 12.5.4 of NFPA 54, “Special Gas Vents shall be listed”. UL-1738 has been revised to support the testing and listing of plastic pipe. There is no longer any reason to allow untested and unlisted materials to be installed in American homes today. The proposed change creates clarity and consistency that is currently missing in the codes.


Submitter Full Name:Martin Wawrla

Organization: Centrotherm Eco Systems


Committee Statement

Resolution:


I, Martin Waw rla, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in





By checking this box I aff irm that I am Martin Waw rla, and I agree to be legally bound by the above Copyright Assignment




The committee did not agree that plastic piping used for venting appliances must be listed,therefore it is not appropriate to make the changes to the table.

234

12.5.1

The type of venting system to be used shall be in accordance with Table 12.5.1.

Table 12.5.1 Type of Venting System to Be Used

Appliances Type of Venting SystemLocation of

Requirements

Listed Category Iappliances

Type B gas vent 12.7

Listed appliances equippedwith draft hood

Chimney 12.6

Appliances listed for usewith Type B gas vent

Single-wall metal pipe 12.8

Listed chimney liningsystem for gas venting

12.6.1.3

Special gas vent listedfor these appliances

12.5.4

Listed vented wall furnaces Type B-W gas vent 12.7, 10.27

Category II appliances

Category III appliances

Category IV appliances

As specified or furnished bymanufacturers of listedappliances

12.5.2, 12.5.4

Incinerators -In accordance withNFPA 82

Appliances that can beconverted to use solid fuel

Chimney 12.6

Unlisted combination gas-and oil-burning appliances

-

Combination gas- and solidfuel–burning appliances

-

Appliances listed for usewith chimneys only

-

Unlisted appliances -

Listed combination gas-and oil-burning appliances

Type L vent

Chimney

12.7

12.6

Decorative appliance invented fireplace

Chimney 10.6.2

Gas-fired toilets Single-wall metal pipe 12.8, 10.25.3

Direct vent appliances - 12.3.5

Appliances with integralvents

- 12.3.6


Single- wall pipe is commonly confused with single- wall connectors, because to the untrained eye, a single -wall connector is single -wall pipe. This section is requiring 22 gage metal, which is very hard to work with and very uncommon. This section dates back to different era when steel smoke stacks were built in boiler houses and similar structures and served draft hood equipment. What appliances in today's world would be suitable for uninsulated single-wall pipe? Section 12.8 has no real purpose in today's world and serves only to confuse readers and cause them to apply the 12.8 rules to connectors. They just don't get the fact that 12.8 covers unlisted pipe which is not a vent, but is used as a vent. This is as confusing as plastic plumbing pipe that is used as venting material, yet is not a listed vent. The practice of using unlisted vents is extinct to my knowledge, as it should be.



235




Committee Statement

Resolution:










The committee did not agree to prohibit the use of single-wall metal pipe, therefore the referenceto section 12.8 should be retained.

236


12.5. 2 Plastic

2 Plastic Piping.

Plastic

Where plastic piping is used

for venting appliances listed for

to vent an appliance, the appliance shall be listed for use with such venting materials

shall be approved

and the appliance manufacturer's installation instructions shall identify the specific plasticpiping material .






Committee Statement:

The paragraph is revised to remove the approval by the AHJ because theAHJ often doesn't have sufficient information to approve a specific plasticvent material. In addition, it was reported to the committee that the Z21and Z83 gas appliance standards address the selection of ventingmaterials. Those standards also require the identification of appropriateventing materials in the manufacturer's installation instructions.

FR-10-NFPA 54-2012 Thecommittee does not agree thatinstallation of any system listedto UL 1738 should be permittedwithout a correspondingrequirement in the appliancesafety standards.



237


12.5.2 Plastic Piping.

Plastic piping used for venting appliances listed for use with such venting materials shall beapproved listed or alternatively, listed to UL 1738 .



Open


The local Authority Having Jurisdiction (AHJ) currently has no guidance for determining whether “Plastic Piping” is worthy of “approval” for its intended use. AHJ’s are approving installations of appliances vented with Plastic Piping that may have a wide range of flue gas temperatures and ph levels in condensates that are generated during normal operating conditions and over the expected life span of a heating appliance. In contrast to “Plastic Piping” as “approved” by the appliance manufacturer, a properly UL listed plastic vent specifies temperature limitations for the listed material, assures that the vent system has passed all test protocols of the applicable UL Standard, with the appropriate safety margins per that standard. When listed, each vent system component is clearly labeled and therefore easy to inspect and “approve” by the local AHJ. The UL1738 Standard for Special Gas Vents has been revised to allow plastic vent materials to be tested and listed. The ANSI standards for gas appliances require a “listed material” to be specified. Adding “listed” or “listed to UL 1738” to 12.5.2 will reinforce that requirement and create consistency.


Submitter Full Name:Martin Wawrla

Organization: Centrotherm Eco Systems



Statement:


I, Martin Waw rla, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in





By checking this box I aff irm that I am Martin Waw rla, and I agree to be legally bound by the above Copyright Assignment



FR-10-NFPA 54-2012 The committee does not agree that installation of any system listed to UL

1738 should be permitted without a corresponding requirement in the appliance safety standards.The paragraph is revised to remove the approval by the AHJ because the AHJ often doesn't havesufficient information to approve a specific plastic vent material. In addition, it was reported to thecommittee that the Z21 and Z83 gas appliance standards address the selection of ventingmaterials. Those standards also require the identification of appropriate venting materials in themanufacturer's installation instructions.

238


12.5.2 Plastic Piping.

Plastic piping used for venting appliances listed for use with such venting materials shall beapproved.








Statement:










FR-10-NFPA 54-2012 The committee does not agree that installation of any system listed to UL1738 should be permitted without a corresponding requirement in the appliance safety standards.

The paragraph is revised to remove the approval by the AHJ because the AHJ often doesn't havesufficient information to approve a specific plastic vent material. In addition, it was reported to thecommittee that the Z21 and Z83 gas appliance standards address the selection of ventingmaterials. Those standards also require the identification of appropriate venting materials in themanufacturer's installation instructions.

239


12.7.3.3 Category II, Category III, and Category IV Appliances.

The sizing of gas vents for Category II, Category III, and Category IV appliances shall be inaccordance with the appliance manufacturer's instructions. The sizing of plastic pipe specifiedby the appliance manufacturer as a venting material for Category II, III and IV appliances shallbe in accordance with the appliance manufacturers' instructions.






CommitteeStatement:

The committee added guidance for sizing of plastic piping used to vent appliances. The sizingis not covered by the current language because the plastic piping does not meet the definitionfor a gas vent.

FR-11-NFPA54-2012


240


12.7.3.3 Category II, Category III, and Category IV Appliances.

The sizing of gas vents for Category II, Category III, and Category IV appliances shall be inaccordance with the appliance manufacturer's instructions. The sizing of plastic pipe specifiedby the appliance manufacturer as a venting material for Category 11, III and IV appliances shallbe in accordance with the appliance manufacturers' instructions.







Committee Statement

Resolution:

Statement:











12.8 Single-Wall Metal Pipe.

12.8.1 Construction.

Single-wall metal pipe shall be constructed of galvanized sheet steel not less than 0.0304 in.(0.7 mm) thick or of other approved, noncombustible, corrosion-resistant material.

12.8.2 * Cold Climate.

FR-11-NFPA 54-2012

The committee added guidance for sizing of plastic piping used to vent appliances. The sizing isnot covered by the current language because the plastic piping does not meet the definition for agas vent.

241

12.8.2 * Cold Climate.

Uninsulated single-wall metal pipe shall not be used outdoors for venting appliances in regionswhere the 99 percent winter design temperature is below 32°F (0°C).

12.8.3 Termination.

The termination of single-wall metal pipe shall meet the following requirements:

(1) Single-wall metal pipe shall terminate at least 5 ft (1.5 m) in vertical height above thehighest connected appliance draft hood outlet or flue collar.

(2) Single-wall metal pipe shall extend at least 2 ft (0.6 m) above the highest point where itpasses through a roof of a building and at least 2 ft (0.6 m) higher than any portion of abuilding within a horizontal distance of 10 ft (3 m).

(3) An approved cap or roof assembly shall be attached to the terminus of a single-wallmetal pipe.

12.8.4 Installation with Appliances Permitted by 12.5.1.

12.8.4.1 * Prohibited Use.

Single-wall metal pipe shall not be used as a vent in dwellings and residential occupancies.

12.8.4.2

Single-wall metal pipe shall be used only for runs directly from the space in which theappliance is located through the roof or exterior wall to the outer air. A pipe passing through aroof shall extend without interruption through the roof flashing, roof jacket, or roof thimble.

12.8.4.3

Single-wall metal pipe shall not originate in any unoccupied attic or concealed space and shallnot pass through any attic, inside wall, concealed space, or floor.

12.8.4.4

Minimum clearances from single-wall metal pipe to combustible material shall be in accordance withTable 12.8.4.4 . Reduced clearances from single-wall metal pipe to combustible material shall be asspecified for vent connectors in Table 10.2.3 .

Table 12.8.4.4 Clearances for Connectors

Minimum Distance from Combustible Material Appliance Listed Type B

Gas Vent Material Listed Type L

Vent Material Single-Wall

Metal Pipe Factory-Built

Chimney Sections Listed appliance with draft hoods and appliance listed for use with Type B gasvents As listed As listed 6 in. As listed Residential boilers and furnaces with listed gas conversionburner and with draft hood 6 in. 6 in. 9 in. As listed Residential appliances listed for use with Type Lvents Not permitted As listed 9 in. As listed Listed gas-fired toilets Not permitted As listed As listed Aslisted Unlisted residential appliances with draft hood Not permitted 6 in. 9 in. As listed Residential andlow-heat appliances other than those above Not permitted 9 in. 18 in. As listed Medium-heatappliance Not permitted Not permitted 36 in. As listed

For SI units, 1 in. = 25.4 mm.

Note: These clearances shall apply unless the installation instructions of a listed appliance orconnector specify different clearances, in which case the listed clearances shall apply.

12.8.4.5

Where a single-wall metal pipe passes through a roof constructed of combustible material, anoncombustible, nonventilating thimble shall be used at the point of passage. The thimbleshall extend at least 18 in. (460 mm) above and 6 in. (150 mm) below the roof with the annularspace open at the bottom and closed only at the top. The thimble shall be sized inaccordance with 12.8.4.6 .

12.8.4.6

Single-wall metal pipe shall not pass through a combustible exterior wall unless guarded atthe point of passage by a ventilated metal thimble not smaller than the following:

242

(1) For listed appliances with draft hoods and appliances listed for use with Type B gasvents, the thimble shall be a minimum of 4 in. (100 mm) larger in diameter than themetal pipe. Where there is a run of not less than 6 ft (1.8 m) of metal pipe in the openingbetween the draft hood outlet and the thimble, the thimble shall be a minimum of 2 in.(50 mm) larger in diameter than the metal pipe.

(2) For unlisted appliances having draft hoods, the thimble shall be a minimum of 6 in. (150mm) larger in diameter than the metal pipe.

(3) For residential and low-heat appliances, the thimble shall be a minimum of 12 in. (300mm) larger in diameter than the metal pipe.

Exception : In lieu of thimble protection, all combustible material in the wall shall beremoved a sufficient distance from the metal pipe to provide the specified clearancefrom such metal pipe to combustible material. Any material used to close up suchopening shall be noncombustible.

12.8.5 Size of Single-Wall Metal Pipe.

Single-wall metal piping shall comply with the following requirements:

(1)

(5) Where a single-wall metal pipe is used and has a shape other than round, it shall havean equivalent effective area equal to the effective area of the round pipe for which it issubstituted and the minimum internal dimension of the pipe shall be 2 in. (50 mm).

(6) The vent cap or a roof assembly shall have a venting capacity not less than that of thepipe to which it is attached.

12.8.6 Support of Single-Wall Metal Pipe.

All portions of single-wall metal pipe shall be supported for the design and weight of thematerial employed.

12.8.7 Marking.

Single-wall metal pipe shall comply with the marking provisions of 12.7.6 .


Single- wall pipe is commonly confused with single- wall connectors, because to the untrained eye, a single -wall connector is single -wall pipe. This section is requiring 22 gage metal, which is very hard to work with and very uncommon. This section dates back to different era when steel smoke stacks were built in boiler houses and similar structures and served draft hood equipment. What appliances in today's world would be suitable for uninsulated single-wall pipe? Section 12.8 has no real purpose in today's world and serves only to confuse readers and cause them to apply the 12.8 rules to connectors. They just don't get the fact that

12.8 covers unlisted pipe which is not a vent, but is used as a vent. This is as confusing as plastic plumbing

* A venting system of a single-wall metal pipe shall be sized in accordance with oneof the following methods and the appliance manufacturer’s instructions:

(2) For a draft hood–equipped appliance, in accordance with Chapter 13

(3) For a venting system for a single appliance with a draft hood, the areas of theconnector and the pipe each shall not be less than the area of the appliance fluecollar or draft hood outlet, whichever is smaller. The vent area shall not be greaterthan seven times the draft hood outlet area.

(4) Other approved engineering methods

243

12.8 covers unlisted pipe which is not a vent, but is used as a vent. This is as confusing as plastic plumbing pipe that is used as venting material, yet is not a listed vent. The practice of using unlisted vents is extinct to my knowledge, as it should be.





Committee Statement

Resolution:










First Revision No. 19-NFPA 54-2012 [ New Section after A.3.3.6.11.1 ]

A.3.3.67.1 Combustible Material. Materials are considered to be combustible even if they have beenfire-retardant treated.






CommitteeStatement:

The proposed annex note brings in the concept from the original definition in NFPA 54. Theterm “flameproofed” is now considered inappropriate.

FR-19-NFPA54-2012

Public Input No. 18-NFPA 54-2012 [New Section after A.3.3.6.11.1]

Public Input No. 18-NFPA 54-2012 [ New Section after A.3.3.6.11.1 ]

Single wall metal pipe is used in some applications, and the committee does not agree that itshould be prohibited.

244

A.3.3.67.1 Materials should be considered combustible even if they have been fire-retardant treated.


This extracts the definition of combustible material from NFPA 101 to prevent the use of definitions that are duplicative in meaning but not identical. This is a goal of the NFPA Technical Advisory Committee on the Glossary of Terminology, set up by Standards Council, which I chair. This public input is not being generated on behalf of the glossary committee. The proposed annex note brings in the concept from the original definition in NFPA 54. The term “flameproofed” is now considered inappropriate.If the committee wants to explain what limited combustible materials are it can extract that from 4.6.14 of NFPA 101, shown below, but that is probably not necessary.I have proposed public input to also extract the concept of noncombustible (material). 4.6.14* Limited-Combustible Material. A material shall be considered a limited-combustible material where all the conditions of 4.6.14.1 and 4.6.14.2, and the conditions of either 4.6.14.3 or 4.6.14.4, are met. 4.6.14.1 The material shall not comply with the requirements for noncombustible material in accordance with 4.6.13. 4.6.14.2 The material, in the form in which it is used, shall exhibit a potential heat value not exceeding 3500 Btu/lb (8141 kJ/kg) where tested in accordance with NFPA 259, Standard Test Method for Potential Heat of Building Materials. 4.6.14.3 The material shall have the structural base of a noncombustible material with a surfacing not exceeding a thickness of 1/8 in. (3.2 mm) where the surfacing exhibits a flame spread index not greater than 50 when tested in accordance with ASTM E 84, Standard Test Method for Surface Burning Characteristics of Building Materials, or ANSI/UL 723, Standard for Test for Surface Burning Characteristics of Building Materials. 4.6.14.4 The material shall be composed of materials that, in the form and thickness used, neither exhibit a flame spread index greater than 25 nor evidence of continued progressive combustion when tested in accordance with ASTM E 84, Standard Test Method for Surface Burning Characteristics of Building Materials, or ANSI/UL 723, Standard for Test for Surface Burning Characteristics of Building Materials, and shall be of such composition that all surfaces that would be exposed by cutting through the material on any plane would neither exhibit a flame spread index greater than 25 nor exhibit evidence of continued progressive combustion when tested in accordance with ASTM E 84 or ANSI/UL 723. 4.6.14.5 Where the term limited-combustible is used in this Code, it shall also include the term noncombustible.





Committee Statement

Resolution:

Statement:










signature

FR-19-NFPA 54-2012

The proposed annex note brings in the concept from the original definition in NFPA 54. The term“flameproofed” is now considered inappropriate.

245

First Revision No. 12-NFPA 54-2012 [ New Section after A.3.3.99.7 ]

3.3.106.2 Gas Vent. This definition does not apply to plastic plumbing piping that isspecified as a venting material in the manufacturer's instructions for gas-fired appliancesthat are listed for venting with such piping.






Committee Statement: The committee clarified that plastic pipe is not a gas vent as defined by this code.

FR-12-NFPA 54-2012

Public Input No. 60-NFPA 54-2012 [Section No. 3.3.106.2 [Excluding any Sub-Sections]]

First Revision No. 20-NFPA 54-2012 [ New Section after A.3.3.99.7 ]

Add a new section to read: A.4.4 The provisions of 4.4 do not require noncombustible materials to be tested in order to beclassified as noncombustible materials. Materials such as steel, concrete, and cement blocks aregenerally accepted to be noncombustible.






CommitteeStatement:

The committee clarified that 4.4 does not require all materials to be tested in order to beclassified as noncombustible.

FR-20-NFPA 54-2012

Public Input No. 21-NFPA 54-2012 [New Section after A.3.3.99.7]

246

Public Input No. 21-NFPA 54-2012 [ New Section after A.3.3.99.7 ]

Add a new section to read: A.4.4 The provisions of 4.4 do not require inherently noncombustible materials to be tested in orderto be classified as noncombustible materials.







Committee Statement

Resolution:

Statement:










signature

FR-20-NFPA 54-2012

The committee clarified that 4.4 does not require all materials to be tested in order to be classifiedas noncombustible.

247

Public Input No. 36-NFPA 54-2012 [ New Section after A.10.3.7.3 ]

The intent of 10.3.7.4 is that the air delivered to other rooms or building spaces returns tothe furnace. If return air is blocked, air will be drawn through the vent and of the productsof combustion will be spilled into the space in which he furnace is installed. If this occurs,carbon monoxide can be produced by the furnace. While the code provides norequirements for sizing return ducts or openings, they should be at least equal to the area ofthe vents supplying other building areas and rooms. It is not the intent of this requirement tomandate return ducts to furnaces installed in closets where an adequately sized air returnpath is provided, such as by louvers or undercutting doors.


This proposal is submitted in conjunctino with revisios to paragraph 10.3.7.3 to provide an explanation. The substantiation for that proposal is:

I recently became aware that paragraph 10.3.7.4 has been interpreted to require a return air duct between connected rooms served by a closet furnace in a small apartment. To my understanding that is not the intent of the requirement. I understand that the intent of the requirement is to required return air ducts



Public Input No. 35-NFPA 54-2012 [Section No.10.3.7.4]


Submitter Full Name:Theodore Lemoff

Organization: TLemoff Engineering


Committee Statement

Resolution:


I, Theodore Lemoff, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights





By checking this box I aff irm that I am Theodore Lemoff, and I agree to be legally bound by the above Copyright



signature

The new paragraph was not accepted by the committee, therefore the proposed annex materialwas not accepted.

248

First Revision No. 24-NFPA 54-2012 [ New Section after A.10.12.8 ]

Add new text to read as follows: A.10.15.1.2 Clearance Above Cooking Top.

******Insert Figure Here******

Modify the diagram to move the arrows so that they accurately reflect the distance from the range topto the microwave or cabinet. (Currently, the arrows reflect the distance between the countertop to themicrowave or cabinet.)






CommitteeStatement:

The illustrative diagram is added to help explain the vertical clearancerequirements.

FR-24-NFPA 54-2012

Public Input No. 42-NFPA 54-2012 [New Section after A.10.12.8]

249

Public Input No. 42-NFPA 54-2012 [ New Section after A.10.12.8 ]

Add new text to read as follows: A.10.15.1.2 Clearance Above Cooking Top.

******Insert Figure Here******



54_L42_Fig_R.docx 54_L42_Fig_R







Committee Statement

Resolution:

Statement:










signature

First Revision No. 32-NFPA 54-2012 [ Chapter J ]

Annex J Other Useful Definitions

This annex is not a part of the requirements of this NFPA document but is included forinformational purposes only.

J.1 Useful Terms.

The following terms are not used in the code. They are used in appliance standards and by

FR-24-NFPA 54-2012

The illustrative diagram is added to help explain the vertical clearance requirements.

250

The following terms are not used in the code. They are used in appliance standards and bymanufacturers of products covered by the code.

J.1.1 Ambient Temperature.

The temperature of the surrounding medium; usually used to refer to the temperature of the airin which a structure is situated or a device operates.

J.1.2 Automatic Damper Regulator.

A mechanically or electrically actuated device designed to maintain a constant draft oncombustion appliances.

J.1.3 Burner, Induced-Draft.

A burner that depends on draft induced by a fan that is an integral part of the appliance and islocated downstream from the burner.

J.1.4 Burner, Injection (Atmospheric).

A burner in which the air at atmospheric pressure is injected into the burner by a jet of gas.

J.1.5 Burner, Power, Premixing.

A power burner in which all or nearly all of the air for combustion is mixed with the gas asprimary air.

J.1.6 Conversion Burner, Gas, Firing Door Type.

A conversion burner specifically for boiler or furnace firing door installation.

J.1.7 Conversion Burner, Gas, Inshot Type.

A conversion burner normally for boiler or furnace ash pit installation and fired in a horizontalposition.

J.1.8 Conversion Burner, Gas, Upshot Type.

A conversion burner normally for boiler or furnace ash pit installation and fired in a verticalposition at approximately grate level.

J.1.9 Decorative Appliance for Installation in a Vented Fireplace, Coal Basket.

An open-flame-type appliance consisting of a metal basket that is filled with simulated coalsand gives the appearance of a coal fire when in operation.

J.1.10 Decorative Appliance for Installation in a Vented Fireplace, Fireplace Insert.

Consists of an open-flame, radiant-type appliance mounted in a decorative metal panel tocover the fireplace or mantel opening and having provisions for venting into the fireplacechimney.

J.1.11 Decorative Appliance for Installation in a Vented Fireplace, Gas Log.

An open-flame-type appliance consisting of a metal frame or base supporting simulated logs.

J.1.12 Decorative Appliance for Installation in a Vented Fireplace, RadiantAppliance.

An open-front appliance designed primarily to convert the energy in fuel gas to radiant heat bymeans of refractory radiants or similar radiating materials.

J.1.13 Fireplace, Factory-Built.

A fireplace composed of listed factory-built components assembled in accordance with themanufacturer's installation instructions to form the completed fireplace.

J.1.14 Fireplace, Masonry.

A hearth and fire chamber of solid masonry units such as bricks, stones, listed masonryunits, or reinforced concrete, provided with a suitable chimney.

J.1.15 Floor Furnace, Fan-Type.

A floor furnace equipped with a fan that provides the primary means for circulation of air.

J.1.16 Floor Furnace, Gravity-Type.

A floor furnace depending primarily on circulation of air by gravity. This classification alsoincludes floor furnaces equipped with booster-type fans that do not materially restrict freecirculation of air by gravity flow when such fans are not in operation.

J.1.17 Furnace, Direct Vent Central.

A system consisting of (1) a central furnace for indoor installation, (2) combustion airconnections between the central furnace and the outdoor atmosphere, (3) flue gasconnections between the central furnace and the vent cap, and (4) a vent cap for installationoutdoors, supplied by the manufacturer and constructed so that all air for combustion isobtained from the outdoor atmosphere and all flue gases are discharged to the outdooratmosphere.

251

atmosphere.

J.1.18 Furnace, Downflow.

A furnace designed with airflow discharge vertically downward at or near the bottom of thefurnace.

J.1.19 Furnace, Forced Air, with Cooling Unit.

A single-package unit, consisting of a gas-fired, forced-air furnace of the downflow, horizontal,or upflow type combined with an electrically or gas-operated summer air-conditioning system,contained in a common casing.

J.1.20 Furnace, Gravity.

A furnace depending primarily on circulation of air by gravity.

J.1.21 Furnace, Gravity, with Booster Fan.

A furnace equipped with a booster fan that does not materially restrict free circulation of air bygravity flow when the fan is not in operation.

J.1.22 Furnace, Gravity, with Integral Fan.

A furnace equipped with a fan or blower as an integral part of its construction and operable ongravity systems only. The fan or blower is used only to overcome the internal furnaceresistance to airflow.

J.1.23 Furnace, Horizontal.

A furnace designed for low headroom installation with airflow across the heating elementessentially in a horizontal path.

J.1.24 Furnace, Upflow.

A furnace designed with airflow discharge vertically upward at or near the top of the furnace.This classification includes “highboy” furnaces with the blower mounted below the heatingelement and “lowboy” furnaces with the blower mounted beside the heating element.

J.1.25 Gas Main or Distribution Main.

A pipe installed in a community to convey gas to individual services or other mains.

J.1.26 Household Cooking Appliance, Floor-Supported Unit.

A self-contained cooking appliance for installation directly on the floor. It has a top section andan oven section. It could have additional sections.

J.1.27 Indirect Oven.

An oven in which the flue gases do not flow through the oven compartment.

J.1.28 Joint, Adhesive.

A joint made in plastic piping by the use of an adhesive substance that forms a continuousbond between the mating surfaces without dissolving either one of them.

J.1.29 Joint, Solvent Cement.

A joint made in thermoplastic piping by the use of a solvent or solvent cement that forms acontinuous bond between the mating surfaces.

J.1.30 Leak Detector.

An instrument for determining concentration of gas in air.

J.1.31 Loads, Connected.

Sum of the rated Btu/hr gas input to individual appliances connected to a piping system. Canalso be expressed in cubic feet per hour.

J.1.32 Orifice Cap (Hood).

A movable fitting having an orifice that permits adjustment of the flow of gas by the changing ofits position with respect to a fixed needle or other device.

J.1.33 Orifice Spud.

A removable plug or cap containing an orifice that permits adjustment of the flow of gas eitherby substitution of a spud with a different sized orifice or by the motion of a needle with respectto it.

J.1.34 Pressure Control.

Manual or automatic maintenance of pressure, in all or part of a system, at a predeterminedlevel, or within a selected range.

J.1.35 Regulator, Appliance, Adjustable.

(1) Spring type, limited adjustment: a regulator in which the regulating force acting upon thediaphragm is derived principally from a spring, the loading of which is adjustable over a range

252

diaphragm is derived principally from a spring, the loading of which is adjustable over a rangeof not more than ±15 percent of the outlet pressure at the midpoint of the adjustment range;(2) spring type, standard adjustment: a regulator in which the regulating force acting on thediaphragm is derived principally from a spring, the loading of which is adjustable.

J.1.36 Regulator, Appliance, Multistage.

A regulator for use with a single gas whose adjustment means can be positioned manually orautomatically to two or more predetermined outlet pressure settings.

J.1.37 Regulator, Appliance, Nonadjustable.

(1) Spring type, nonadjustable: a regulator in which the regulating force acting on thediaphragm is derived principally from a spring, the loading of which is not field adjustable; (2)weight type: a regulator in which the regulating force acting upon the diaphragm is derived froma weight or combination of weights.

J.1.38 Room Heater, Unvented Circulator.

A room heater designed to convert the energy in fuel gas to convected and radiant heat bydirect mixing of air to be heated with the combustion products and excess air inside thejacket.

J.1.39 Room Heater, Vented.

A vented, self-contained, freestanding, nonrecessed, fuel gas–burning appliance for furnishingwarm air to the space in which installed, directly from the heater without duct connections.

J.1.40 Room Heater, Vented Circulator.

A room heater designed to convert the energy in fuel gas to convected and radiant heat, bytransfer of heat from flue gases to a heat exchanger surface, without mixing of flue gases withcirculating heated air.

J.1.41 Room Heater, Vented Circulator, Fan Type.

A vented circulator equipped with an integral circulating air fan, the operation of which isnecessary for satisfactory appliance performance.

J.1.42 Room Heater, Vented Overhead Heater.

A room heater designed for suspension from or attachment to or adjacent to the ceiling of theroom being heated and transferring the energy of the fuel gas to the space being heatedprimarily by radiation downward from a hot surface, and in which there is no mixing of fluegases with the air of the space being heated.

J.1.43 Room Heater, Wall Heater, Unvented Closed Front.

An unvented circulator having a closed front, for insertion in or attachment to a wall orpartition.

J.1.44 Valve, Automatic Gas Shutoff.

A valve used in conjunction with an automatic gas shutoff device to shut off the gas supply toa fuel gas–burning water heating system.

J.1.45 Valve, Individual Main Burner.

A valve that controls the gas supply to an individual main burner.

J.1.46 Valve, Main Burner Control.

A valve that controls the gas supply to the main burner manifold.

J.1.47 Valve, Manual Main Gas Control.

A manually operated valve in the gas line for the purpose of completely turning on or shuttingoff the gas supply to the appliance, except to a pilot or pilots that are provided withindependent shutoff.

J.1.48 Vented Wall Furnace, Fan-Type.

A wall furnace that is equipped with a fan.

J.1.49 Vented Wall Furnace, Gravity-Type.

A wall furnace that depends on circulation of air by gravity.

J.1.50 Venting System, Mechanical Draft, Induced.

A portion of a venting system using a fan or other mechanical means to cause the removal offlue or vent gases under nonpositive static vent pressure.

J.1.51 Venting System, Mechanical Draft, Power.

See 3.3.99.7.1, Forced Mechanical Draft Venting System.

J.1.52 Water Heater, Automatic Instantaneous.

A water heater that has a rated input of at least 4000 Btu/hr/gal (5 kW/L) of self-stored water.

253

A water heater that has a rated input of at least 4000 Btu/hr/gal (5 kW/L) of self-stored water.Automatic control is obtained by water-actuated control, thermostatic control, or acombination of water-actuated control and thermostatic control. This classification includesfaucet-type water heaters designed to deliver water through a single faucet integral with ordirectly adjacent to the appliance.

J.1.53 Water Heater, Commercial Storage.

A water heater that heats and stores water at a thermostatically controlled temperature fordelivery on demand. Input rating is 75,000 Btu/hr (21,980 W) or more.

J.1.54 Water Heater, Domestic Storage.

A water heater that heats and stores water at a thermostatically controlled temperature fordelivery on demand. Input rating cannot exceed 75,000 Btu/hr (21,980 W).






CommitteeStatement:

The annex has not been maintained. The terms are not used in the code. The annex is nolonger being used due to the advent of internet-based resources.

FR-32-NFPA54-2012

254

First Revision No. 13-NFPA 54-2012 [ Section No. L.2.5 ]

L.2.5 UL Publications.


ANSI/UL 103, Chimneys, Factory-Built, Residential Type and Building Heating Appliances ,

2001, Revised 2006

2010 .

ANSI/UL 441, Gas Vents , 2010.

ANSI/UL 641, Type L Low-Temperature Venting Systems ,

1995, Revised 2009

2010 .

ANSI/UL 1738, Venting Systems for Gas Burning Appliances, Categories II, III and IV , 1993,Revised 2006.

ANSI/UL 1777, Chimney Liners , 2007, Revised 2009.






Committee Statement: Update referenced standards to most recent edition as indicated.

FR-13-NFPA 54-2012

Public Input No. 9-NFPA 54-2012 [Section No. L.2.5]

255

Public Input No. 9-NFPA 54-2012 [ Section No. L.2.5 ]

L.2.5 UL Publications.


ANSI/UL 103, Chimneys, Factory-Built, Residential Type and Building Heating Appliances,2001, Revised 2006 2010 .

ANSI/UL 441, Gas Vents, 2010.

ANSI/UL 641, Type L Low-Temperature Venting Systems, 1995, Revised 2009 2010 .

ANSI/UL 1738, Venting Systems for Gas Burning Appliances, Categories II, III and IV, 1993,Revised 2006.

ANSI/UL 1777, Chimney Liners, 2007, Revised 2009.


Update referenced standards to most recent edition as indicated.


Submitter Full Name:John Bender

Organization: Underwriters Laboratories Inc.


Committee Statement

Resolution:

Statement:


I, John Bender, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in





By checking this box I aff irm that I am John Bender, and I agree to be legally bound by the above Copyright Assignment



FR-13-NFPA 54-2012

Update referenced standards to most recent edition as indicated.

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____________________________________________________________________________ 1. Committee Projects - Under Panel Minutes starting on page 69________________________ 2. New Committee Input - Update of Standards - page 259_____________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________

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Proposed Committee Input

Reference Standards and Annex L Standards Updates

Annex L

Informational Publications

L.1.1 NFPA Publications. National Fire Protection

Association, 1 Batterymarch Park, Quincy, MA 02169-7471,

617.770.3000, www.nfpa.org.

NFPA 58, Liquefied Petroleum Gas Code, 200812 edition.

NFPA 90A, Standard for the Installation of Air-

Conditioning and Ventilating Systems, 200912 edition.

L.1.2 Other Publications

L.1.2.1 API Publication. American Petroleum Institute, 1220

L Street, NW, Washington, DC 20005-4070, 202.682.8000,

www.api.org.

API STD 1104, Welding Pipelines and Related Facilities,

2008 (Reaffirmed 2010)

L.1.2.2 ASHRAE Publications. American Society of

Heating, Refrigerating and Air-Conditioning Engineers, Inc.,

1791 Tullie Circle, N.E., Atlanta, GA 30329-2305,

404.636.8400, www.ashrae.org.

ASHRAE Handbook — HVAC Systems and Equipment,

200812.

L.1.2.3 ASME International Publications. American Society

of Mechanical Engineers International, Three Park Avenue,

New York, NY 10016-5990, 800.843.2763, www.asme.org.

ASME Boiler and Pressure Vessel Code, Section IX and

Section IV, 200710.

L.1.2.4 ASTM International Publications. American Society

for Testing and Materials International, 100 Barr Harbor

Drive, West Conshohocken, PA 19428-2959, 610.832.9500,

www.astm.org.

ANSI/ASTM D2385, Method of Test Method for Hydrogen

Sulfide and Mercaptan Sulfur in Natural Gas (Cadmium

Sulfate – Iodometric Titration Method), 1981 (Reaffirmed

1990).

ASTM A53, Standard Specification for Pipe, Steel, Black

and Hot-Dipped, Zinc Coated Welded and Seamless, 200712.

ASTM A106, Standard Specification for Seamless Carbon

Steel Pipe for High-Temperature Service, 200811.

ASTM B241, Standard Specification for Aluminum and

Aluminum-Alloy Seamless Pipe and Seamless Extruded Tube,

200410.

ASTM D2513, Standard Specification for Polyethylene

(PE) Gas Pressure Pipe, Tubing, and Fittings, 200912

ASTM F2509, Standard Specification for Field-assembled

Anodeless Riser Kits for Use on Outside Diameter Controlled

Polyethylene Gas Distribution Pipe and Tubing, 2006

(Reaffirmed 2012).

L.1.2.5 AWS Publications. American Welding Society, 550

NW LeJeune Road, Miami, FL 33126, 800.443.9353,

www.aws.org.

AWS B2.1, Specification for Welding Procedure and

Performance Qualification, 2009 (Reaffirmed 2012).

AWS B2.2, Brazing Procedure and Performance

Qualification, 1991 2010

L.1.2.6 CSA Internatonal Publications. CSA International,

8501 East Pleasant Valley Road, Cleveland, OH 44131-5575,

216.524.4990, www.csa-internatioinal.org.

ANSI Z21.60/CSA 2.26, Decorative Gas Appliances for

Installation in Solid-Fuel Burning Fireplaces, 2003

(Reaffirmed 2009).

L.1.2.8 UL Publications. Underwriters Laboratories Inc., 333

Pfingsten Road, Northbrook, IL 60062-2096, 847.272.8800,

www.ul.com.

ANSI/UL 651, Schedule 40 and 80 Rigid PVC Conduit and

Fittings, 201012.

L.2 Informational References.

L.2.1 NFPA Publications. National Fire Protection

Association, 1 Batterymarch Park, Quincy, MA 02169-7471,

617.770.3000, www.nfpa.org.

NFPA 59, Utility LP-Gas Plant Code, 200812 edition.

NFPA 86, Standard for Ovens and Furnaces, 200711

edition.

NFPA 90A, Standard for the Installation of Air-

Conditioning and Ventilating Systems, 200912 edition.

L.2.2 CSA Internatonal Publications. CSA International,

8501 East Pleasant Valley Road, Cleveland, OH 44131-5575,

216.524.4990, www.csa-internatioinal.org.

ANSI NGV1/CGSA NGV1, Compressed Natural Gas

Vehicle (NGV) Fueling Connection Devices, 2006.

ANSI/AGA NGV3.1/CGA 12.3, Fuel System Components

for Natural Gas Powered Vehicles, 1995 (Reaffirmed 2007)

2012.

ANSI/CSA America FC 1, Stationary Fuel Cell Power

Systems, 200412.

ANSI/CSA NGV 2, Basic Requirements for Compressed

Natural Gas Vehicle Fuel Containers American National

Standard for Natural Gas Vehicle Container, 2007.

ANSI Z21.1, Household Cooking Gas Appliances, 200510

ANSI Z21.5.1/CSA 7.1, Gas Clothes Dryers — Volume I —

Type 1 Clothes Dryers, 2006 (Reaffirmed 2012).

ANSI Z21.5.2/ CSA 7.2, Gas Clothes Dryers — Volume II

— Type 2 Clothes Dryers, 2005 (Reaffirmed 2011).

ANSI Z21.10.3/CSA 4.3, Gas Water Heaters — Volume III

— Storage Water Heaters with Input Ratings above 75,000 Btu

per Hour, Circulating and Instantaneous, 200409.

259

Proposed Committee Input

Reference Standards and Annex L Standards Updates

ANSI Z21.19/CSA 1.4, Refrigerators Using Gas Fuel, 2002

(Reaffirmed 200712).

ANSI Z21.20/C22.2 – No. 199, Automatic Electrical

Controls for Household and Similar Use – Part 2: Particular

Requirements for Automatic Burner Ignition Systems and

Components, 2007 (Reaffirmed 2011).

ANSI Z21.23, Gas Appliance Thermostats, 2000

(Reaffirmed 2005) 2010.

ANSI Z21.47/CSA 2.3, Gas-Fired Central Furnaces, 2006

(Reaffirmed 2011).

ANSI Z21.57, Recreational Vehicle Cooking Gas

Appliances, 200510.

ANSI Z21.60/CSA 2.26, Decorative Gas Appliances for

Installation in Solid-Fuel Burning Fireplaces, 2003

(Reaffirmed 2009).

ANSI Z21.78/CSA 6.20, Combination Gas Controls for

Gas Appliances, 200510.

ANSI Z21.88/CSA 2.33, Vented Gas Fireplace Heaters,

200509.

ANSI Z83.11/CSA 1.8, Gas Food Service Equipment, 2006

(Reaffirmed 2012).

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____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________

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*NOTE: Participants in NFPA’s codes and standards making process should know that limited review of this decision may be sought from the NFPA Board of Directors. For the rules describing the available review and the method for petitioning the Board for review, please consult section 1-7 of the NFPA Regulations Governing Committee Projects (Regs.) and the NFPA Regulations Governing Petitions to the Board of Directors from Decisions of the Standards Council. Since this Council decision is not related to the issuance of a document as referenced in 1.7.2 of the Regs., notice of the intent to file such a petition must be submitted to the Clerk of the Board of Directors within a reasonable time period from the availability of this decision.

SC #10-3-20 D#10-2

Amy Beasley Cronin Secretary, Standards Council 23 June 2010 To: Interested Parties Subject:

Standards Council Decision (Final): D#10-2 Standards Council Agenda Item: SC#10-3-20 Date of Decision*: 3 March 2010

Action following Report of the Council Task Group on CSST Dear Interested Parties: At its meeting of 2 March 2010, the Standards Council considered an appeal on the above referenced matter. Attached is the final decision of the Standards Council on this matter. Sincerely,

Amy Beasley Cronin Secretary, NFPA Standards Council c: D. Berry, M. Brodoff, L. Fuller, M. Earley, D. Roux, T. Lemoff, J. Moreau-Correia, C. Henderson Members, TC on Lightning Protection (LIG-AAA) Members, TC on National Fuel Gas Code (NFG-AAA) Members, NEC Code Making Panel 5 (NEC-P05) Members, TCC on National Electrical Code (NEC-AAC) Members, NFPA Standards Council (AAD-AAA)

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Standards Council Decision (Final): D#10-2 Standards Council Agenda Item: SC#10-3-20 Date of Decision*: 3 March 2010

Action following Report of the Council Task Group on CSST This Standards Council decision sets forth the Standards Council’s conclusions and directives following its receipt and consideration, at its March 2010 meeting, of a report submitted by a Council task group on issues concerning bonding and other lightning-related safety issues affecting corrugated stainless steel tubing (CSST) in gas piping systems. Background In August of 2009, the Standards Council considered a proposed TIA to the 2008 edition of NFPA 70®, National Electrical Code® (NEC), to specify requirements concerning the bonding of corrugated stainless steel tubing (CSST) in gas piping systems. The TIA was proposed by the submitter as the appropriate means of protecting CSST against damage that could be caused if the system is energized due to a lightning strike. The submitter pointed out that a similar (though not identical) bonding provision had been added to the 2009 edition of NFPA 54, National Fuel Gas Code (NFPA 54), and he suggested that a TIA was necessary for correlation and consistency between NFPA 54 and the NEC. The Council declined to issue the TIA since the TIA had been soundly defeated in the balloting of the responsible panel. See Standards Council Decision #09-18 (Agenda Item SC#09-8-16[d], August 6, 2009). In doing so, however, the Council noted that the record before it revealed both jurisdictional and potential technical issues that called for further attention within the standards development process going forward. First, as to the jurisdictional issue, the Council noted that questions had been raised regarding whether the issue addressed by the proposed TIA was properly within the scope of the NEC. Specifically, the Council noted:

In the balloting on the TIA and elsewhere in the record, it has been observed that the scope of the NEC is the practical safeguarding of persons and property from hazards arising “from the use of electricity,” see NEC at 90.1(A), and it has been suggested that a provision, such as the proposed TIA, addressed to the hazards arising from lightning rather than from human use of electricity, is not within the scope of the NEC. (Decision #09-18 at p. 2)

Secondly, the Council noted that in addition to jurisdictional/scope concerns, the balloting on the TIA raised questions regarding whether the proposed bonding requirements for CSST had been adequately substantiated:

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Whether or not the NEC has lightning protection within its scope, Panel 5 has expertise on issues of grounding and bonding. Concerns have been raised by some panel members in the balloting and elsewhere as to whether the bonding requirements proposed for the NEC in the TIA and which, in similar form, are currently contained in NFPA 54 have been adequately substantiated. Although the Technical Committee on Lightning Protection was consulted, it was also stated that no correlation or input from Panel 5 was sought by the Technical Committee responsible for NFPA 54 when it considered and accepted the proposal for bonding of CSST now contained in NFPA 54. (Decision #09-18 at p. 2)

The Council concluded that there ought to be a review and study of both the jurisdictional/scope issues and the technical questions concerning bonding or other lightning-related technical issues affecting CSST in gas piping systems:

The Council believes that these issues are deserving of study both for the purpose of assisting the Council in fulfilling its responsibilities to assign scopes and coordinate and oversee the activities of the various NFPA committee projects and also for the benefit of the technical committees that have or should play a role in reviewing the technical issues relating to CSST. (Decision #09-18 at p. 2)

To conduct this review, the Council designated Council Member Farr to appoint and chair a task group made up of members from NEC Panel 5, the technical committees responsible for NFPA 54 and NFPA 780, and any other relevant technical committees. This group is hereafter referred to as “the CSST Task Group”. The Council charged this task group as follows:

The CSST Task Group is requested to provide the Council with a review and analysis of the jurisdictional and technical issues relating to lightning and CSST in gas piping systems, to identify and discuss any technical issues that need to be addressed, to identify potential research or data needs, and to identify which technical committee or committees should play a role in addressing the technical issues and what that role should be. The CSST Task Group’s report should include its recommendations as to steps that should be taken so that any issues can be further addressed, if necessary, within the standards development process.

The CSST Task Group was subsequently formed and, after conducting its work, has now submitted its report to the Council. Conclusions The Council has now reviewed the report and, the CSST Task Group’s work now being complete, the Council has discharged the CSST Task Group with thanks. In the remainder of this decision, the Council sets forth and discusses its conclusions, based on the recommendations of the CSST Task Group and a review of the entire record. Jurisdiction. On the jurisdictional issue, the CSST Task Group noted in its report that lightning protection was generally outside the scope of the NEC and that the Technical Committee on Lightning Protection addresses the installation of lightning protection

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systems and deals with gas piping only as it may be part of a lightning protection system. The CSST Task Group, therefore, recommended that the jurisdiction of bonding for lightning protection of gas piping reside with the Technical Committee on the National Fuel Gas Code. NFPA 54, National Fuel Gas Code, is the document that addresses the safe installation of fuel gas piping systems and currently contains bonding requirements. The Council concludes that, based on the recommendation of the CSST Task Group, the Technical Committee on the National Fuel Gas Code should have the jurisdiction over requirements for the bonding of fuel gas piping systems, including CSST. As discussed further below, CSST will need to receive further attention in the standards development process going forward. So as to ensure that the Technical Committee on the National Fuel Gas Code receives input and expertise concerning the lightning-related safety issues related to CSST from other relevant projects and sources, the Council directs the Technical Committee on the National Fuel Gas Code to create a task group to address the CSST issues (hereafter referred to as the NFPA 54 CSST Task Group), drawing on the expertise, as appropriate, of the members of NFPA 70, National Electrical Code®, NFPA 780, Standard for the Installation of Lightning Protection Systems, and from other appropriate organizations such as those that certify or develop product standards related to CSST. This new NFPA 54 CSST Task Group should be for the purpose of studying the issues and providing input to the Technical Committee on the National Fuel Gas Code and others on the safety and use of CSST. Without limitation, such input may include recommendations concerning the scope or content of any necessary research or testing, recommendations for revisions to NFPA 54, review and comment on any Proposals and Comments under consideration, and recommendations concerning relevant questions such as whether or to what extent listing requirements or product standards developers should play a role in addressing lightning-related safety of the CSST product. Technical Substantiation. On the technical lightning safety issues surrounding CSST, the CSST Task Group reported that it had sought information on the research that supports the current CSST bonding requirements of NFPA 54, including any research performed by or on behalf of any manufacturers. The reports received were of limited value and as stated in the CSST Task Group report provided to the Council "did not provide enough information for the CSST Task Group to ascertain that the proposed bonding remedy will provide adequate protection from lightning induced surges.” In addition, the CSST Task Group noted limited anecdotal reports concerning failures where the bonding of the installation may have complied with the current edition of NFPA 54. The CSST Task Group cautioned that the lack of detailed information or incident reports made assessment of these anecdotes impossible. Concerned with the lack of technical substantiation, the CSST Task Group concluded that a research program was necessary to "identify safe methods for the installation of CSST to protect against lightning induced failure with consequent gas leakage." The CSST Task Group report identified, among the areas that should be addressed, the following:

Validate whether or not bonding of CSST is an adequate solution to lightning exposure problem.

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If bonding is the solution, validate how bonding should be done. If bonding is the solution, validate the size of the bonding jumpers. Determine if bonding should be done at a location or locations other than where

the gas pipe enters the building. Determine if alternate methods can be used for safe installation, i.e., separation

from other equipment.

The CSST Task Group’s conclusion that there is inadequate substantiation regarding the safe use of CSST echoes the previously expressed concerns that prompted the Council to form the task group in the first place. See Standards Council Decision #09-18 (Agenda Item SC#09-8-16[d], August 6, 2009). Because so little information was provided to the task group, it is unclear whether and to what extent a problem exists. The paucity of the submissions to the task group, however, confirms the Council’s view that the concerns that have been raised about CSST should be addressed and resolved. After review of the CSST task group report and other information available to it, the Council agrees that further research must be produced to technically substantiate whether and, if so, how and in what conditions CSST can be safely used, with respect to lightning, in gas piping systems. Over the next full revision currently scheduled to be in the Annual 2014 revision cycle, the industry or others advocating the continued use of CSST in gas piping systems shall validate the safe use of the product through independent third-party validated research and testing that can be reviewed and evaluated by standards developers in a timely way. Without prescribing who would be most appropriate to organize or conduct this independent research, the Council notes that the NFPA 54 CSST Task Group may be useful in providing input into the scope of research necessary to allow standards developers to establish adequate provisions concerning CSST. In addition, the Council's CSST Task Group noted that the Fire Protection Research Foundation is discussing the possibility of undertaking a research program related to CSST and lightning protection. The Research Foundation frequently can play a useful role in identifying research needs or in conducting research. The Standards Council, however, wishes to emphasize that it is primarily for the participants in the NFPA standards development process to fund and produce the technical substantiation necessary to support the technical content of codes and standards. See, e.g., Standards Council Decision #00-22 at p. 5 (SC#00-60, July 20, 2000); Standards Council Decision #00-30 (SC#00-60, October 6, 2000). Whether through the auspices of the Research Foundation or through other means, it is incumbent upon the manufacturers or others promoting the use of CSST in gas piping systems to provide independently validated and reliable technical substantiation demonstrating that CSST can be safely used. If such substantiation is not provided, the Technical Committee on the National Fuel Gas Code must consider prohibiting the use of CSST in NFPA 54, National Fuel Gas Code. In addition, should the issues not be reasonably addressed by the end of the next full revision cycle, Annual 2014, the Council may take action as it deems appropriate up to and including the prohibition of the use of CSST in NFPA 54.

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III

112TH CONGRESS 2D SESSION S. RES. 483

Commending efforts to promote and enhance public safety on the need for

yellow corrugated stainless steel tubing bonding.

IN THE SENATE OF THE UNITED STATES

JUNE 6, 2012

Mr. PRYOR (for himself and Ms. AYOTTE) submitted the following resolution;

which was referred to the Committee on the Judiciary

RESOLUTION Commending efforts to promote and enhance public safety

on the need for yellow corrugated stainless steel tubing

bonding.

Whereas yellow corrugated stainless steel tubing (referred to

in this preamble as ‘‘CSST’’) is flexible gas piping used

to convey natural gas or propane to household appliances

in homes and businesses;

Whereas since 1990, yellow CSST has been installed in more

than 6,000,000 homes and businesses in the United

States;

Whereas field reports and research suggest that if direct or

indirect lightning strikes a structure, the risk for elec-

trical arcing between the metal components in a structure

with yellow CSST may be reduced by means of

equipotential bonding and grounding;

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Whereas proper bonding of CSST is defined in section 7.13.2

of the 2009 edition of the NFPA 54: National Fuel Gas

Code, and is referenced in info note 2 in section 250.104

of the 2011 edition of the NFPA 70: National Electric

Code;

Whereas the National Association of State Fire Marshals

supports the proper bonding of yellow CSST to current

National Fire Protection Association Code to reduce the

possibility of gas leaks and fires from lightning strikes;

Whereas the National Association of State Fire Marshals is

working to educate relevant stakeholders, including fire,

building, and housing officials, consumers, homeowners,

and construction professionals about the need to properly

bond yellow CSST in legacy installations and in all new

installations in accordance with the most recent building

codes and manufacturer installation instructions;

Whereas the bonding of yellow CSST in legacy installations

is an important public safety matter that merits alerting

homeowners, relevant State and local fire, building, and

housing officials, and construction professionals such as

electricians, contractors, plumbers, inspectors, and home-

improvement specialists: Now, therefore, be it

Resolved, That the Senate— 1

(1) commends efforts to promote and enhance 2

public safety and consumer awareness on proper 3

bonding of yellow corrugated stainless steel tubing 4

(referred to in this resolution as ‘‘CSST’’) as defined 5

in the National Fire Protection Association Code; 6

and 7


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(2) encourages further educational efforts for 1

the public, relevant building and housing officials, 2

consumers, homeowners, and construction profes-3

sionals on the need to properly bond yellow CSST 4

retroactively and moving forward in houses that con-5

tain the product. 6

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Contact: Jim Narva July 18, 2012 Title: NASFM Executive Director FOR IMMEDIATE RELEASE Tel: 202-737-1226 Email: [email protected]

NATIONAL ASSOCIATION OF STATE FIRE MARSHALS (NASFM) LAUNCHES NATIONWIDE YELLOW CSST SAFETY CAMPAIGN

NASFM Applauds US Senate for Passing a Resolution Encouraging Education Efforts

to Improve Safety in Over 6 Million Homes

NASFM has launched a nationwide safety campaign to bring awareness to homeowners on the importance of proper bonding of yellow corrugated stainless steel tubing (CSST) due to potential damage risks associated with lightning. Yellow CSST is flexible metal gas tubing which has been installed in over 6 million homes in the U.S. since the early 1990s and is used to supply natural gas or propane to furnaces, water heaters, and other gas appliances. The U.S. Senate yesterday unanimously passed a bipartisan Resolution (S.RES.483), introduced by Senators Mark Pryor (D-AR) and Kelly Ayotte (R-NH), commending this campaign and “encourage[ing] further educational efforts…on the need to properly bond

yellow CSST retroactively and moving forward in houses that contain the product.” A companion resolution (H.RES.638) has been introduced in the House of Representatives by Congressmen Robert Dold (R-IL-10) and Ruben Hinojosa (D-TX-15). “We are looking forward to undertaking this critical public safety campaign and applaud the U.S. Senate and Senators Pryor and Ayotte for their leadership in introducing and passing this Resolution to raise awareness to help protect over six million homes,” said Bill Degnan, NASFM President. Direct or indirect lightning strikes on or near a structure have been shown to cause an electrical surge to travel into the structure and have in some cases caused a perforation in the sidewall of the tubing as the energy arcs from one metallic system to another seeking ground. This arcing can ignite the pressurized gas leaking from the perforation, and in some cases, has caused a significant fire. In the last few years, the manufacturer’s instructions and national building codes have

changed with respect to requirements for bonding and grounding CSST in new installations. As this is a safety improvement, NASFM is working to bring awareness to existing homeowners who may already have CSST installed, so they have the opportunity to have their structures inspected and upgraded to the new specifications.

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“We have the opportunity to enhance safety by raising awareness of a risk that can be minimized. This is an important public safety initiative that NASFM fully supports in conjunction with key stakeholders,” said Jim Narva, NASFM Executive Director. Homeowners and property owners who have yellow CSST installed in their homes are encouraged to determine if the system is properly bonded. Licensed electrical contractors should be contacted to make the correct determination on proper bonding of the system. Consumers should visit www.csstsafety.com for additional information.

### If you’d like more information about this topic, or to schedule an interview with Jim

Narva or Bill Degnan, please call 202-737-1226 or email [email protected]. The National Association of State Fire Marshals (NASFM) membership comprises the most Senior Fire Official in each State. NASFM’s mission is to protect human

life, property and the environment from fire and related hazards.

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http://www.csstsafety.com/

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