5285 960 v1 - viessmann · vitodens 200 installation instructions for use by heating contractor...

VITODENS 200

Installation Instructionsfor use by heating contractor

Vitodens 200WB2 SeriesWall-mounted, gas-fired condensing boiler

For natural gas and liquid propaneHeating input NG 55 to 230 MBH

16 to 67 kWHeating input LP 55 to 214 MBH

16 to 63 kW

Read and save these instructionsfor future reference.

IMPORTANT

Vitodens 200, WB2-44/60(with preinstalled vent pipe adaptor)

PleasefileinServiceBinder

5285 960 v1.2 10/2007

Safety, Installation and Warranty Requirements

2

Safety, Installation and Warranty Requirements

Please ensure that these instructions are read and understood before commencing installation. Failure to comply with theinstructions listed below and details printed in this manual can cause product/property damage, severe personal injury, and/or lossof life. Ensure all requirements below are understood and fulfilled (including detailed information found in manual subsections).

H Licensed professional heatingcontractorThe installation, service, andmaintenance of this equipment mustbe performed by a licensedprofessional heating contractor.

" Please see sectionentitled “ImportantRegulatory andInstallationRequirements” in theInstallation Instructions.

HProduct documentationRead all applicable documentationbefore commencing installation. Storedocumentation near boiler in a readilyaccessible location for reference inthe future by service personnel.

" For a listing ofapplicable literature,please see sectionentitled “ImportantRegulatory andInstallation Requirements”in the Installation Instructions.

HAdvice to ownerOnce the installation work iscomplete, the heating contractormust familiarize the systemoperator/ultimate owner with allequipment, as well as safetyprecautions/requirements, shut-downprocedure, and the need forprofessional service annually beforethe heating season begins.

HCarbon monoxideImproper installation, service and/ormaintenance can cause flue productsto flow into living space. Flueproducts contain poisonous carbonmonoxide gas.

" For informationpertaining to the properinstallation, service andmaintenance of thisequipment to avoidformation of carbon monoxide, pleasesee the Installation Instructions of theVitodens 200 Direct Vent System.

HEquipment ventingNever operate boiler without aninstalled venting system. An improperventing system can cause carbonmonoxide poisoning.

HWarrantyInformation contained inthis and related productdocumentation must beread and followed. Failureto do so renders warrantynull and void.

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Installers must follow localregulations with respect toinstallation of carbon monoxidedetectors. Follow manufacturer’smaintenance schedule of boiler.

WARNING

Index

3

Page

Safety Important Regulatory and Installation Requirements 5.. . . . . . . . . . . . . . . . . . . . . . . . . .

General Information About these Installation Instructions 7.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Applicability 8.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Product Information 8.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Mechanical Room 9.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Set-up Before Set-up 9.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Minimum Clearances 9.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Boiler Connections Preparing the Connections 10.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Connections overview 10.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Wall Mounting 12.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Wall mounting bracket installation 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Mounting Vitodens 200 boiler 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Connections 14.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Power supply connection 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Flue gas connection 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Proper piping practice 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Gas connection and piping 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Gas piping pressure test 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Heating water connections 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DHW Production Kit Installation 19.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Product information 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Making the DHW connections 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Electrical connection 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Condensate connection 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Safety Connections and Pressure Testing 22.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installing safety devices on the boiler 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Performing pressure test on the boiler 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installation Examples 23.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Boiler in heating/cooling application 32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Boiler with low water cut-off 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Venting Connection 34.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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Index

4

Control Connections Electrical Connections 35.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Overview of electrical connections and plug-in connectors 35. . . . . . . . . . . . .

Routing of connecting cables 37. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Outdoor temperature sensor 39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DHW tank temperature sensor 40. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Low-loss header sensor 40. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

External switching of heating program/External heat demand 41. . . . . . . . .

External burner disable 41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Power/Pump Module Installation 42.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Power supply connection 43. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Technical data 43. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Pump connections 43. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Product information (expansion board) 44. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Expansion board installation 44. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Technical data 45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installing the Programming Unit of the Control Unit 46.. . . . . . . . . . . . . . . . . . . . . . . . . . .

Appendix Start-up Information 47.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Start-up and adjustments 47. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Technical Data 47.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Wiring Diagram 48.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Lighting and Operating Instructions 49.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Ladder Diagram 50.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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Safety

5

Important Regulatory and Installation Requirements

CodesThe installation of this unit shall be inaccordance with local codes or, in theabsence of local codes, useCAN/CSA-B149.1 or .2 InstallationCodes for Gas Burning Appliances forCanada. For U.S. installations use theNational Fuel Gas Code ANSI Z223.1.Always use latest editions of codes.

In Canada all electrical wiring is to bedone in accordance with the latestedition of CSA C22.1 Part 1 and/orlocal codes. In the U.S. use theNational Electrical Code ANSI/NFPA70. The heating contractor must alsocomply with both the Standard forControls and Safety Devices forAutomatically Fired Boilers,ANSI/ASME CSD-1, and the InstallationCode for Hydronic Heating Systems,CSA B214-01, where required by theauthority having jurisdiction.

Leave all literature at the installationsite and advise the systemoperator/ultimate owner where theliterature can be found. ContactViessmann for additional copies.

This product comes with severalsafety instruction labels attached.Do not remove!Contact Viessmann immediately ifreplacement labels are required.

For installations in the Commonwealth of Massachusetts, the following localrequirements apply in addition to all other applicable NFPA requirements:

1) For direct-vent appliances, mechanical-vent heating appliances or domestic hot water equipment, where the bottom ofthe vent terminal and the air intake is installed below four feet above grade the following requirements must be satisfied.

1. If there is not one already present, on each floor level where there are bedroom(s), a carbon monoxide detectorand alarm shall be placed in the living area outside the bedroom(s). The carbon monoxide detector shall complywith NFPA 720 (2005 Edition).

2. A carbon monoxide detector shall be located in the room that houses the appliance or equipment and shall:

a. Be powered by the same electrical circuit as the appliance or equipment such that only one service switchservices both the appliance and the carbon monoxide detector;

b. Have battery back-up power;c. Meet ANSI/UL 2034 Standards and comply with NFPA 720 (2005 Edition); andd. Have been approved and listed by a Nationally Recognized Testing Laboratory as recognized under 527

CMR.

3. A product-approved vent terminal must be used, and if applicable, a product-approved air intake must be used.Installation shall be in strict compliance with the manufacturer’s instructions. A copy of the installationinstructions shall remain with the appliance or equipment at the completion of the installation.

4. A metal or plastic identification plate shall be mounted at the exterior of the building, four feet directly above thelocation of vent terminal. The plate shall be of sufficient size to be easily read from a distance of eight feet away,and read ”Gas Vent Directly Below”.

Continued on following page.

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Safety

6

Important Regulatory and Installation Requirements (continued)

For direct-vent appliances, mechanical-vent heating appliances or domestic hot water equipment where the bottom of thevent terminal and the air intake is installed above four feet above grade the following requirements must be satisfied:

1. If there is not one already present, on each floor level where there are bedroom(s), a carbon monoxide detectorand alarm shall be placed in the living area outside the bedroom(s). The carbon monoxide detector shall complywith NFPA 720 (2005 Edition).

2. A carbon monoxide detector shall:

a. Be located in the room that houses the appliance or equipment;b. Be either hard-wired or battery powered or both; andc. Shall comply with NFPA 720 (2005 Edition).

3. A product-approved vent terminal must be used, and if applicable, a product-approved air intake must be used.Installation shall be in strict compliance with the manufacturer’s instructions. A copy of the installationinstructions shall remain with the appliance or equipment at the completion of the installation.

Working on the equipmentThe installation, adjustment, service,and maintenance of this boiler must bedone by a licensed professional heatingcontractor who is qualified andexperienced in the installation, service,and maintenance of hot water boilers.There are no user serviceable parts onthe boiler, burners, or control.

Ensure main power supply toequipment, the heating system, and allexternal controls has been deactivated.Close main gas supply valve. Takeprecautions in all instances to avoidaccidental activation of power duringservice work.

The completeness and functionality offield supplied electrical controls andcomponents must be verified by theheating contractor. These include lowwater cut-offs, flow switches (if used),staging controls, pumps, motorizedvalves, air vents, thermostats, etc.

Technical literatureLiterature for the Vitodens boiler:- Technical Data Manual- Installation Instructions- Start-up/Service Instructions- Operating Instructionsand User’s Information Manual

- System Design Guidelines- Instructions of other Viessmannproducts utilized and installed

- Installation codes mentionedin this manual

Leave all literature at the installationsite and advise the systemoperator/ultimate owner where theliterature can be found. ContactViessmann for additional copies.

This product comes with severalsafety instruction labels attached.Do not remove!Contact Viessmann immediately ifreplacement labels are required.

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General Information

7

About these Installation Instructions

Take note of all symbols and notations intended to draw attention to potential hazards or important product information.These include ”WARNING”, ”CAUTION”, and ”IMPORTANT”. See below.

Warnings draw your attention to thepresence of potential hazards orimportant product information.

Cautions draw your attention to thepresence of potential hazards orimportant product information.

Helpful hints for installation,operation or maintenance whichpertain to the product.

This symbol indicates that additional,pertinent information is to be found incolumn three.

This symbol indicates that otherinstructions must be referenced.

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Indicates an imminently hazardoussituation which, if not avoided, couldresult in death, serious injury orsubstantial product/property damage.

WARNING

Indicates an imminently hazardoussituation which, if not avoided, mayresult in minor injury orproduct/property damage.

CAUTION

IMPORTANT

General Information

8

Applicability

Vitodens 200, WB2 44/60

Model No. Serial No.WB2 11-44 7188578andWB2 15-60 7188577

Product Information

Gas-fired hot water heating boiler for space heating and domestic hot waterproduction with a stand-alone DHW tank (tank must be ordered separately).

For operation with modulating boiler water temperatures in closed loop, forcedcirculation hot water heating circuits.

The Vitodens 200 comes factory set for operation with natural gas, with theoption of conversion to liquid propane using a field conversion kit.(When planning on fuel converting the Vitodens 200 boiler, contact Viessmann toorder the required conversion kit.)

Boiler model must be selected based on an accurate heat loss calculation of thebuilding. Ensure boiler model is compatible with connected radiation.

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Boiler serial number must be providedwhen ordering replacement parts.Some replacement parts are notreverse compatible with previousversions of the Vitodens 200 boiler.

CAUTION

Serial No. location(16 digit barcode label)

General Information/Set-up

9

Mechanical Room

During the early stages of new home design, we recommend that properconsideration be given to constructing a separate mechanical room dedicated togas- or oil-fired equipment including domestic hot water storage tanks.

The boiler must be located in a heated indoor space, near a floor drain, and asclose as possible to the wall.

Whenever possible, install boiler near an outside wall so that it is easy to duct theventing system to the boiler.

Locate boiler on walls capable of supporting the weight of the boiler filled withwater (see section entitled “Technical Data” on page 47 for information requiredfor total boiler weight calculation). Ensure that boiler location does not interferewith proper circulation of combustion and ventilation air of other fuel burningequipment (if applicable) within the mechanical room.

The maximum room temperature of the mechanical room where the boiler islocated must not exceed 104°F/40°C.

Before Set-up

Before placing boiler in its installationlocation, ensure all necessaryaccessories are installed.

Minimum Clearances

Recommended minimum service clearances

For typical Vitodens installations, Viessmannrecommends installing the boiler with the clearancesshown in the illustration on the left.

Recommended clearances to combustibles

The Vitodens 200 boiler is approved for closet andalcove installation with the following clearances tocombustibles.

Top Front Rear Left Right Vent pipe*1

0 0 AL, CL 0 0 0 0AL = AlcoveCL = Closet*1Refer to the Installation Instructions of the Vitodens 200Venting System for details.

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The boiler must be installed in such away that gas ignition systemcomponents are protected fromwater (spraying, splashing, etc.)during boiler operation and service.

CAUTION

Front

12”/305 mm

Top12”/305 mm

0”/mm

28”/700 mm

Side

0”/mm

Back

SideDiagram is not to scale.

Boiler Connections

10

Preparing the Connections

Use an approved pipe sealant or teflon tape whenconnecting the following installation fittings.

Connections overview

This section constitutes an overview only! Refer to subsequent sections fordetailed information on individual piping connections.

Piping connections for Vitodens 200,WB2 11-44 and 15-60

*These adapters are factory supplied.

Legend

BWR Boiler water return, 1¼” NPTFBWS Boiler water supply, 1¼” NPTFBD Boiler drainDR Boiler heating return for

domestic hot water production,1¼” NPTM

DS Boiler heating supply fordomestic hot water production,1¼” NPTM

GC Gas connection, ¾” NPTMPRV Pressure relif valveNPT National Pipe Thread

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BWS

BWR

NPT

GC

PRV

BD

DS DR

* *} }

Boiler Connections

11

Preparing the Connections

Connections Vitodens 200,WB2 11-44/15-60

LegendAV Air ventBWR Boiler water return, 1¼” NPTFBWS Boiler water supply, 1¼” NPTFBD Boiler drainDR Domestic hot water return,

1¼” NPTMDS Domestic hot water supply,

1¼” NPTMGC Gas connection, ¾” NPTMPRV Pressure relief valve, ¾”

Vitodens 200, WB2side view

Reference point for top ofboilerVitodens 200 boilerFinished floor level

When preparing gas, waterand electrical connections inthe field, see section entitled“Wall Mounting” on page 12of this manual for informationregarding the installation ofthe wall mounting bracket.

The maximum ambient temperaturemust not exceed 95 ºF/35 ºC.

H Heating water connections and gasconnection to be made in the field.See illustration to the left andconnection-specific section fordetails.

H See subsection entitled “Powersupply connection” for detailsregarding power supply to theVitodens 200 boiler.

*1Recommendation

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35.4”/900mm

22”/550 mm24”/600 mm

2”/50 mm

min.16”/400mm

78”/1975mm*1

AV

PRV

BWR

BWS

DS

GC

DRBD

IMPORTANT

Boiler Connections

12

Wall Mounting

Wall mounting bracket installation

LegendReference point for top of boilerMounting templateFinished floor level

Dimensionsa 23.6”/600 mmb 16”/407 mmc 3.7”/95 mmd 0.7”/18 mme 78”/1975 mm*1Recommendation

The Vitodens 200 can be wall-mountedonHa brick/concrete wallHwood studsHmetal studs

Following are the installationinstructions for the mounting bracketon each material. Skip to theinstallation instructions applicable toyour installation requirements.

Installation of mounting bracket onbrick/concrete wall:

1.Drill holes (Ø 3/8”/10 mm), usingmounting template supplied with theboiler.

2.Align wall mounting bracket andattach to wall with the screws andbolts supplied.

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1.

2.

a

b

cd

e*1

2x

3/8”/10 mm

Whichever mounting method is used,ensure that the bracket is tightly andsecurely fastened to wall. Failure tosecure boiler properly could causeboiler to loosen, posing a severesafety hazard.

CAUTION

Boiler Connections

Fig.Installation of mounting bracket

a

a = 16”/407 mm

Fig.Installation of mounting bracket on wood studs

16”/407 mm

3/16”2x

Fig.Installation of mounting bracket on metal studs

5/8”2x

16”/407 mm

13

Wall Mounting (continued)

Mounting bracket installation (continued)

Installation of mounting bracket onwood and metal studs

To mount the Vitodens 200 boiler onwood or metal studs, install mountingbracket on wall as shown in Fig. .Refer to Figs. and below for moredetailed installation information.

Install mounting bracket on wood studsas per illustration.Drill 3/16” pilot holes to insert mountingbolts.Ensure that holes are located in thecenter of each wood stud.

Install mounting bracket on metal studsas per illustration.Drill 5/8” pilot holes to insert mountingbolts.Ensure that holes are located in thecenter of each metal stud.Secure mounting bracket with bolts tometal studs as shown.

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Boiler ConnectionsBoiler Connections

14

Wall Mounting (continued)

Mounting Vitodens 200 boiler

1.Open hinged cover of the control unit(by exerting slight pressure withfingertip).

2.Unlock enclosure panel by looseningscrew as illustrated.

3. Remove front enclosure panel (lift upand pull towards you).

4. Loosen the two screws holding basepanel in place and remove basepanel (if still installed) towards you.

5.Mount boiler onto the mountingbracket.

For installation of themounting bracket, seesubsection entitled “Wallmounting bracketinstallation” on page 12 ofthis manual.

6. Connect boiler to the installationfittings.

Connections

Power supply connection

Installation InstructionsPower/Pump Module

The Vitodens 200 boiler is shippedwith a Power/Pump Module, whichrequires a 120 VAC power supply froma wall receptacle.

The module contains a 120/230 VACstep-up transformer to power theVitodens 200 with 230 VAC. Refer tothe Installation Instructions shippedwith the module or those contained inthis manual for wiring details.

Flue gas connection

The Vitodens 200 boiler comes with apreinstalled vent pipe adaptor (asshown).Run venting system, single-wall orcoaxial, through the side wall or theroof, taking the shortest possible routeand at a rising angle (min. 3º).

See Installation InstructionsVitodens 200 Venting Systemfor details.

5285960v1

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2.

5.

1.

3.

4.

5285960v1

.2

Boiler Connections

15

Connections (continued)

Proper piping practice

Support piping by proper suspensionmethod. Piping must not rest on or besupported by boiler.

Gas connection and piping

GC Gas connection

1.Make gas connection in accordancewith codes CAN/CSA B149.1 and .2or National Fuel Gas Code ANSIZ223.1/NFPA 54, as well as localcodes.

2.Close gas shutoff valve (fieldsupplied) on boiler.

3. Perform leak test.

4. Bleed air from gas supply pipe.

See following page for details on gasconnection and piping.

5285960v1

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Use moderate amount of dope

Leave 2 end threads bareThread pipe right length

2 imperfect threads

GC

Boiler Connections

16


Gas connection and piping (continued)

Gas connectionAccessible manual gas shutoffvalve (field supplied)Ground joint unionDrip leg

Max. gas supply pressure: 14 “w.c.

1. Refer to current CAN/CSA B149.1and .2 or National Fuel Gas CodeANSI Z223.1/NFPA 54, as well aslocal codes for gas pipingrequirements and sizing. Pipe size tothe boiler must be determined basedon:– pipe length– number of fittings– type of gas– maximum input requirements of allgas appliances in the residence.

Design piping layout in such a way thatpiping does not interfere withserviceable components.

2. Before connecting boiler to gas line,install ground joint union, cappeddrip leg and a manual equipmentshutoff valve as shown. Valves mustbe listed by a nationally recognizedtesting agency. Make boiler gasconnection as shown on the left.

Gas connection (NPT) ∅¾“.. . . . . . . . . . . . . . . . . .

3. Perform gas piping pressure test asdescribed in the followingsubsection.

4. Identify shutoff valves as such witha tab and familiarizeoperator/ultimate owner of boilerwith these valves.

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IMPORTANT

The gas supply piping must be leaktested before placing the boiler inoperation.

WARNING

Ensure that gas piping is largeenough for all appliances in theresidence. No noticeable gaspressure drop in the gas line mustoccur when any unit (or combinationof units) lights or runs.

CAUTION

IMPORTANT

Boiler Connections

17


Gas piping pressure test

When performing the gas piping pressure test, ensure the following requirements aremet.

½ psig = 14 ”w.c.

1. Isolate the boiler from the gas supplypiping system using the individualmanual shutoff valve during pressuretests equal to or less than ½ psig/14 ”w.c.

2. The boiler and its individual shutoffvalve must be disconnected from thegas supply piping system during anypressure testing of that system attest pressures in excess of½ psig/14 ”w.c.

3. Perform leak test.Use approved liquid spray solutionfor bubble test. Ensure that no liquidis sprayed on any electricalcomponents, wires or connectors.Do not allow leak detection fluid tocontact gas valve regulator orregulator vent opening.

4.Correct any and all deficiencies.

5. Remove air from gas line.

5285960v1

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Never check for gas leaks with anopen flame.

WARNING

Exposing boiler gas pressureregulator and gas valve to extremepressures renders warranty null andvoid.

WARNING

IMPORTANT

Boiler Connections

18


Heating water connections

AV Air ventBD Boiler DrainBWR Boiler water returnBWS Boiler water supplyDR Boiler heating return for

domestic hot water productionDS Boiler heating supply for

domestic hot water productionPRV Pressure relief valve

1. Thoroughly flush heating system(particularly before connecting theboiler to an existing system).

2.Connect boiler to the heatingsystem.

Max. operating pressure 3 bar/. . . . .

45 psig. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Test pressure 4 bar/. . . . . . . . . . . . . . . . . . . . . . . . . . .

60 psig. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Damage resulting from pressureexceeding those values stated is notcovered by Viessmann warranty.

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SVL

PRV

AV

BWR

BWS

DS

GC

DRBD

IMPORTANT

Boiler Connections

19

DHW Production Kit Installation

Product information

The DHW Production Kit is required when using a stand-alone DHW storage tankwith the Vitodens 200 heating boiler. It comprises all components required for theconnection of a stand-alone tank.

See Vitodens 200Start-up/Service Instructionsfor applicable system codinginformation.

See Installation Instructionsfor DHW Production Kit forstandard equipment.

Making the DHW connections

1.Connect isolation valve and brassadaptor to both the DHW supply andreturn connections.

Apply sufficient amount of threadsealant (supplied) when making theconnections.

Isolation valveGasket

5285960v1

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2x

DS DR

1.

IMPORTANT

Boiler Connections

20

DHW Production Kit Installation (continued)

Making the DHW connections (continued)

2.With a Vitocell 100 DHW storagetank:Insert DHW tank temperature sensor

into sensor well as shown.With a Vitocell 300 DHW storagetank:Refer to the Vitocell 300 InstallationInstructions shipped with the DHWstorage tank for details.

Follow the Installation Instructionssupplied with the Viessmann DHWstorage tank when mounting andsecuring DHW tank temperaturesensor .

5285960v1

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2.

Vitocell-H 100 DHW storage tank shown

IMPORTANT

IF A DHW STORAGE TANKOTHER THAN AVIESSMANN VITOCELL100 OR 300 TANK ISUSED, THE INSTALLERMUST VERIFY PROPEROPERATION OF THEVIESSMANN DHW TANKTEMPERATURE SENSORWITH ORIGINALMANUFACTURER OF THETANK. VIESSMANNSTRONGLY RECOMMENDSTHE INSTALLATION OF ATEMPERATURETEMPERING VALVE IN THEDHW SUPPLY LINE.

WARNING

Boiler Connections

21

DHW Production Kit Installation (continued)

Electrical connection

1. Insert plug ”X7” of the DHW tanktemperature sensor into terminal”X7” of the control unit.

Condensate connection

Discharge tubingFlexible discharge tubingSiphon trap

The Vitodens 200 boiler comes with abuilt-in condensate trap. An externaltrap is not required when connectingthe field drain to flexible dischargetubing. Discharge tubing (field supplied)must be of 1” diameter. Use CPVC,PVC or other material approved bycodes listed below.The drain pipe and fittings mustconform to ANSI standards and ASTMD1785 or D2846. CPVC or PVCcement and primer must conform toASTM D2564 or F493. In Canada useCSA or ULC listed schedule 40 CPVCor PVC drain pipe, fittings and cement.If the condensate outlet of theVitodens 200 boiler is lower than thedrain, a condensate pump must beinstalled. Select a pump which isapproved for condensing boilerapplications. To avoid condensatespillage, select a pump with anoverflow switch. The drain connectionmust terminate into an open or venteddrain as close to the boiler as possibleto prevent siphoning of the boiler drain.

1. Install the condensate drain pipewith a suitable gradient.

2.Discharge condensate from theboiler into the drainage system,either directly or (if required) via aneutralization unit (accessory).

Installation Instructions ofNeutralization Unit(if applicable)

Pipe ventilation must take placebetween the siphon trap and theneutralization unit (if applicable).

Do not connect the drain pipe from anyother appliance, such as water softenerbackwash pipe, to Vitodenscondensate drain pipe.

5285960v1

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1 2 43

X7

IMPORTANT

IMPORTANT

Boiler Connections

22

Safety Connections and Pressure Testing

Installing safety devices on the boiler

Legend

Gasket, Ø 1½”Conversion union, (G > BSPT)Reducing tee, 1¼” x ¾” x 1¼”Brass nipple, length 2½” x 1¼”Isolation valve, 1¼”Brass nipple, length 3” x ¾TeeBrass nipple, length 2” x ¾Pressure relief valve, ¾” NPTDrain valve connection, ¾”

1. Remove loosely preassembledcombination pressure relief valve anddrain valve assembly.

2.Apply sufficient amount of pipesealant to both ends of all pipefittings , , and , and installonto tees and .

3. Install pressure relief valve andtighten.

4. Install discharge pipe on pressurerelief valve in such a way that...H the end of the pipe is not threaded.H the pressure relief discharge pipeextends to a floor drain and endsapproximately 6”/150 mm abovethe drain.

Ensure that...H there is no shutoff valveinstalled in the discharge pipe.

H discharge pipe diameter is notreduced.

H discharge is not piped tooutdoors.

Minimum connection diameters:Pressure relief valve ¾“. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Discharge pipe ¾“.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Piping to prechargedexpansion tank ¾“.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Install the (approved) factory suppliedpressure relief valve.

Removal of air from the system mustoccur via use of air vent(s) in thesystem supply. To ensure the boilercan be purged of all air, ensuresupply/return water lines do notcontain restrictive piping where aircould be trapped.

Low water cut-offA low water cut-off may be required bylocal codes. If boiler is installed aboveradiation level, a low water cut-offdevice of approved type (field supplied)must be installed in all instances. Donot install an isolation valve betweenboiler and low water cut-off (seesubsection entitled “Boiler with lowwater cut-off” on page 34 in theseinstructions).

5285960v1

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IMPORTANT

Do not install an isolation valvebetween boiler and pressure reliefvalve.The discharge pipe for the pressurerelief valve must be oriented toprevent scalding of attendants.Pipe pressure relief valve dischargepipe close to floor drain. Never pipedischarge pipe to the outdoors.

WARNING

Boiler Connections

23

Safety Connections and Pressure Testing (continued)

Performing pressure test on the boiler

The boiler must be leak tested beforebeing placed in operation. Before boileris connected to piping or electricalpower supply, it must behydrostatically pressure tested.

1.After installing safety devices (seeprevious page), install temporary capon ¾” x 2” nipple.

2.Cap supply and return connections.

3.Connect ½” garden hose to boilerdrain valve at the bottom of theboiler and fill boiler slowly untilpressure gage indicates max.4 bar/60 psig.

4.Maintain pressure for 15 minutes.During time of pressure testing, donot leave boiler unattended.

5. Inspect all pipe joint connections andsafety devices with a flashlight forleaks.A lower manometer reading than4 bar/60 psig usually indicates lossof water due to leakage. All leaksmust be repaired.

6.After 15 minutes, release waterpressure from boiler by openingboiler drain valve slowly, removecaps from supply and returnconnections as well as ¾” cap from2” nipple, and install pressure reliefvalve immediately instead of ¾”cap.

After boiler has passed pressuretest, proceed with the installation.

Max. operating pressure3 bar/45 psig. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Testing pressure4 bar/60 psig. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Max. boiler water temperature210 °F/99 °C.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installation Examples

GeneralThe schematics on the following pagesare to be seen as guidelines only. Theyfurther do not display all systemvarieties, safety devices, or conceptspossible. Specific system layouts maybe further discussed with the localViessmann sales representative office.

ClearancesA minimum of 2”/51 mmcircumferential clearance fromnon-insulated hot water pipes tocombustible construction must bemaintained. In cases where the pipesare insulated with pipe insulation ofappropriate and sufficient thicknessand insulation values, the aboveclearance may be reduced to 0” (referto local gas codes).

5285960v1

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Exposing the boiler to pressures andtemperatures in excess of thoselisted will result in damages, and willrender warranty null and void.

WARNING

For underfloor heating applications,an additional immersion or strap-onaquastat must be installed in the lowtemperature underfloor loop(downstream of the mixing valve) tode-energize the pump and/or boiler toprevent overheating. High watertemperatures can damage concreteslabs.

CAUTION

Boiler Connections

Pressure drop for models WB2 11-44 and 15-60

0

1

2

3

4

5

6

7

8

0

3.3

6.6

9.8

13.1

16.4

19.7

23

26

Pres

sure

drop

ft.

m

0 2.2 4.4 6.6 8.8 11 13.2

Flow rate

15.41.10 500 1000 1500 2000 2500 3000 3500250

ltr/hGPM

24

Installation Examples (continued)

Waterside flow

Typical system flow rates

Model WB2 11-44 15-60∆ t for NG

Output (NG) Btu/h 153 000 205 00020 ºF rise (GPM) 15.3 20.525 ºF rise (GPM) 12.2 16.430 ºF rise (GPM) 10.2 13.7∆ t for LP

Output (LG) Btu/h 138 000 191 00020 ºF rise (GPM) 13.8 19.125 ºF rise (GPM) 11.0 15.330 ºF rise (GPM) 9.2 12.7

Use standard friction loss method for pipe sizing.Observe boiler maximum flow rate limitations. If system flow rate exceedsboiler maximum flow rate or if system flow rate is unknown, Viessmann stronglyrecommends the installation of a low-loss header. See low-loss header InstallationInstructions for details.

Please note!Low-loss header pressure drop is negligible.

Important!The following examples depict possible piping layouts of the Vitodens 200 boilerequipped with Viessmann System Technology.For boiler and tank combinations, please install only feasible combinations listed inthe Viessmann Price List.Please note that the examples below are simplified conceptual drawings only!Piping and necessary componentry must be field verified.A low water cut-off (LWCO) must be installed where required by local codes.Proper installation and functionality in the field is the responsibility of the heatingcontractor.

The following examples and the corresponding plug-in connection examples donot follow the same alphabetical designation of components. Please take this intoconsideration when cross-referencing between an installation example and thecorresponding plug-in connection example. 5

285960v1

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If a DHW storage tank other than aViessmann Vitocell 100 or 300 tankis used, the installer must verifyproper operation of the ViessmannDHW sensor with the originalmanufacturer of the tank. Viessmannstrongly recommends the installationof a temperature tempering valve inthe DHW supply line.

WARNING

Boiler Connections

25


Vitodens 200 (model WB2 11-44 and up) with DHW storage tank andone direct-connected heating circuit

AV Air ventPRV Pressure relief valveTPV Temperature and pressure relief valve

Vitodens 200 gas-fired condensingboiler with programming unit forweather-responsive operationOutdoor temperature sensor of controlunit for weather-responsiveoperationRemote controlHeating circuitHeating circuit pump (field supplied)DHW circulating pump (field supplied)DHW storage tankDHW tank temperature sensorExpansion tankImportant!Please note location of expansion tank

and flow check valve .Flow check valve

Installation of ...H radiator heating circuit (high temperaturecircuit)

H DHW production...with the following flow conditions1. The flow rate of the heating circuit is lessthan the maximum possible water flow rateof the Vitodens 200 boiler (see followingtable).

Model No.

Vitodens 200,

Max. flow rate(GPM/ltr/h)

WB2 11-44 15.4/3500

WB2 15-60 15.4/3500

The use of a low-loss header is stronglyrecommended if the maximum water flowrate in the application concerned exceedsthe values shown in the table above, or ifthe system flow rates are unknown.

The low-loss header is available asaccessory part.See following pages for installationexamples with a low-loss header.

DHW circulating pump must pumpinto the Vitodens 200 boiler (asillustrated).

5285960v1

.2

PRV

TPV

AV

Y

Installation example and corresponding plug-in connectionexample do not follow same alphabetical designation ofcomponents.

Y

IMPORTANT

Boiler Connections

26


Plug-in connections Vitodens 200 (model WB2 11-44 and up) with DHW storage tank andone direct-connected heating circuit

Vitodens 200 plug-in connectionsA1 Vitodens 200 pump junction box

Outdoor temperature sensorC1 Remote control WS/RS (optional)C2 Wall-mount base when using

the programming unit as remotecontrol (optional)Power connection cable toVitodens 200Heating circuit pumpDHW pumpDHW tank temperature sensorPower/Pump module

I Main disconnect switchLow water cut-off (if applicable)Wall receptacle (main powersupply)


5285960v1

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A1

C1 C2

I

Boiler Connections

27


Vitodens 200 (model WB2 11-44 and up) with DHW storage tank,one heating circuit with mixing valve and system separation

AV Air ventPRV Pressure relief valveTPV Temperature and pressure relief

valveVitodens 200 gas-fired condensingboiler with programming unit forweather-responsive operationOutdoor temperature sensor ofcontrol unit for weather-responsiveoperationRemote controlUnderfloor heating circuitMixing valve temperature sensor

F1 Heating circuit pump (field supplied),located downstream of heat exchanger

F2 Heating circuit pump (field supplied),located upstream of heat exchangerPlate heat exchanger for systemseparationExtension kit for heating circuit withmixing valve

I DHW circulating pump (field supplied)

DHW storage tankDHW tank temperature sensorExpansion tankImportant!Please note location of expansion tank

and flow check valve .Flow check valve

Installation of ...H underfloor heating circuit with 3-waymixing valve and system separation(low temperature circuit)

H DHW production...with the following flow conditions1. The flow rate of the heating circuit is lessthan the maximum possible water flow rateof the Vitodens 200 boiler (see followingtable).

Model No.

Vitodens 200,


WB2 11-44 15.4/3500

WB2 15-60 15.4/3500

The use of a low-loss header is stronglyrecommended if the maximum water flowrate in the application concerned exceedsthe values shown in the preceding table, orif the system flow rates are unknown.The low-loss header is available asaccessory part.See following pages for installationexamples with a low-loss header.

Please note!System separation is required for underfloorheating systems employing non-oxygendiffusion barrier tubing.All components on the secondary side ofthe heat exchanger must be made ofcorrosion-resistant materials.

DHW circulation pump I must pump intothe Vitodens 200 boiler (as illustrated).

5285960v1

.2

PRV

TPV

AV

Y

M

~

Y

I

F1

F2

IMPORTANT

Boiler Connections

28


Plug-in connections Vitodens 200 (model WB2 11-44 and up) with DHW storage tank,one heating circuit with mixing valve and system separation



the programming unit as remotecontrol (optional)Power connection cable toVitodens 200Plug-in connector for supplytemperature sensorPlug-in connector for heatingcircuit pump of heating circuitwith mixing valveExtension kit for a heating circuitwith a mixing valveDHW pump

I DHW tank temperature sensorPower/Pump moduleMain disconnect switchLow water cut-off (if applicable)Wall receptacle (main powersupply)


5285960v1

.2

A1

C1 C2 I

Boiler Connections

29


Vitodens 200 (model WB2 11-44 and up) with DHW storage tank,low-loss header, one heating circuit with mixing valve and one heating circuit without mixing valve


valveVitodens 200 gas-fired condensingboiler with programming unit forweather-responsive operationOutdoor temperature sensor ofcontrol unit for weather-responsiveoperationRemote controlPrimary pump (boiler circuit, fieldsupplied) with low-loss header onlyUnderfloor heating circuitRadiator heating circuitMixing valve temperature sensor

H1 Heating circuit pump (field supplied)H2 Heating circuit pump (field supplied)I Extension kit for heating circuit with

mixing valveLow-loss header

Temperature sensor for low-lossheaderDHW circulating pump (field supplied)DHW storage tank

O DHW tank temperature sensorP Expansion tank

Important!Please note location of expansion tankP and flow check valve R .

R Flow check valve

Installation of different heating circuits...H radiator heating circuit (high temperaturecircuit)

H underfloor heating circuit with 3-waymixing valve (low temperature circuit)

H DHW production...with the following flow conditions1. The flow rate of the heating circuits isgreater than the maximum possible waterflow rate of the Vitodens 200 boiler (seefollowing table).

Model No.

Vitodens 200,


WB2 11-44 15.4/3500

WB2 15-60 15.4/3500

The use of a low-loss header is thereforerecommended.A low-loss header is available as accessorypart.

The radiator heating circuit is supplied by acirculation pump (field supplied).The underfloor heating circuit is supplied bya circulation pump installed on site which iscontrolled by the extension kit.The DHW circulation pump is field supplied.

Pumps and must pump into theVitodens 200 boiler (as illustrated).

5285960v1

.2

AV

TPV

PRV

Y

M

~

Y

I

O

R

R H1

H2

P

Alternate locationsof expansion tank

IMPORTANT

Boiler Connections

30


Plug-in connections Vitodens 200 (model WB2 11-44 and up) with DHW storage tank,low-loss header, one heating circuit with mixing valve and heating circuit without mixing valve



the programming unit as remotecontrol (optional)Boiler pump with low-loss header onlyPower connection cable toVitodens 200 (230 V, 60 Hz)Plug-in connector for supplytemperature sensorPlug-in connector for heatingcircuit pump of heating circuitwith mixing valveHeating circuit pump

I Extension kit for a heating circuitwith a mixing valveTemperature sensor for low-lossheaderDHW pumpDHW tank temperature sensorMain disconnect switch

O Low water cut-off (if applicable)P Wall receptacle (main power

supply)Installation InstructionsPower/Pump Module

5285960v1

.2

A1

C1 C2

I

O

P

Boiler Connections

31


Vitodens 200 (model WB2 11-44) with DHW storage tank, low-loss header andmultiple heating circuits with a mixing valve


valve

Vitodens 200 gas-fired condensingboiler with programming unit forweather-responsive operation andViessmann 2-wire BUS extensionmoduleOutdoor temperature sensor ofcontrol unit for weather-responsiveoperationPrimary pump (boiler circuit, fieldsupplied) with low-loss header onlyVitocontrol*1

Mixing valve temperature sensor

*1 Contact your local Sales Representativefor details.

Heating circuit pump (field supplied)Extension kit for heating circuit withmixing valveHeating circuit with mixing valve

I Extension kit for heating circuit withmixing valveTemperature sensor for low-lossheaderLow-loss headerDHW circulating pump (field supplied)DHW tank temperature sensor

O DHW storage tankP Expansion tank

Important!Please note location of expansion tankP and flow check valve R .

R Flow check valve

Pumps and must pump into theVitodens 200 boiler (as illustrated).

Installation of multiple heating circuits withDHW production and the following flowconditions1. The flow rate of the heating circuits isgreater than the maximum possible waterflow rate of the Vitodens 200 boiler (seefollowing table).

Model No.

Vitodens 200,


WB2 11-44 15.4/3500

WB2 15-60 15.4/3500

The use of a low-loss header is thereforerecommended.A low-loss header is available as accessorypart.

5285960v1

.2

AV

TPV

PRV

O

P

Y

RY

Alternate locationsof expansion tank

IMPORTANT

Boiler Connections

32


Boiler in heating/cooling application

Heating/Cooling unitSpring-loaded flow check valveCirculation pumpSafety headerwith automatic air vent andpressure relief valveExpansion tankWater chillerBoiler circuit pump (field supplied)

Viessmann strongly suggests that thevalves pictured above be labelled “v1”and “v2”.

In the above system, the circulatingpump must be operated from aseparate on/off switch, not from thepump aquastat on the boiler control.

The boiler, when used in connectionwith a refrigeration system, must beinstalled ensuring the chilled medium ispiped in parallel to the boiler withappropriate valves to prevent thechilled medium from entering the boiler.See illustration on the left.

The boiler piping system of a hot waterheating boiler connected to heatingcoils located in air handling units wherethey may be exposed to refrigerated aircirculation must be equipped with flowcontrol valves or other automaticmeans to prevent gravity circulation ofthe boiler water during the coolingcycle.

Check installation instructions of thechiller manufacturer carefully foradditional requirements.

Cooling season starts:Close valve v1 and open valve v2.

Heating season starts:Close valve v2 and open valve v1.

5285960v1

.2

v2

v1

IMPORTANT

IMPORTANT

Boiler Connections

33


Boiler with low water cut-off (remote-mounted, field supplied)

A low water cut-off may be required bylocal codes. If boiler is installed aboveradiation level, a low water cut-offdevice of approved type (field supplied)must be installed in all instances at thehighest point of the piping system. Donot install an isolation valve betweenboiler and low water cut-off.

Follow the installation instructions ofthe low water cut-off manufacturer.

For low water cut-off wiringinformation specific to your application,refer to applicable wiring diagram onthe boiler enclosure panel.

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Boiler below radiation

Vitodens 200

LWCO

Hi-Vent

Boiler above radiation

Vitodens 200

LWCO

Hi-Vent

Boiler ConnectionsBoiler Connections

34


Boiler with optional low water cut-off (boiler-mounted, factory supplied)

Viessmann offers an optional boilermounted low water cut-off (LWCO)connection kit, Part No.: 7134609.

LegendAir ventAir bleed valveRubber grommetBoiler heat exchanger connectionExtension adaptorAdaptor, G ¾” to NPTM ¾”Gasket, ¾”

Venting Connection

For detailed installation information andspecific venting requirements,reference the Vitodens 200 VentingSystem Installation Instructionssupplied with the boiler.

Installation InstructionsVitodens 200 VentingSystem

CAUTIONUnder certain climatic conditions some building materials may be affected by flue products expelled in close proximity tounprotected surfaces. Sealing or shielding of the exposed surfaces with a corrosion resistant material (e.g. aluminumsheeting) may be required to prevent staining or deterioration. The protective material should be attached and sealed (ifnecessary) to the building before attaching the vent termination. It is strongly recommended to install the vent terminationon the leeward side of the building.

5285960v1

.2

Vitodens 200, WB2-44/60

LWCO

support for piping /component

These fittings are not designed tosupport any accessories installed.

WARNING

5285960v1

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Control Connections

35

Electrical Connections

Overview of electrical connections and plug-in connectors

Vitodens built-in junction box for circulation pumps

a Boiler circuit pumpb Heating circuit pumpc Circulation pump for DHW tank

heating

Control unit

Low voltage connectionsLine voltage connections(230, 60 Hz) from Power/PumpModuleRemote control WS/RSExternal switching of heatingprogram/External heat demandAlarm output*1

Extension kit for heating circuit withmixing valveVitotronic 050/Dekamatik-HK1control unitWall-mount baseExternal burner disableOutdoor temperature sensor

O DHW tank temperature sensorP Low-loss header temp. sensorR Power supply connection

from Power/Pump Module(230 VAC, 60 Hz)

Q Not used

*1An expansion board is required for connection purposes. Direct connection is not permitted. Please contact Viessmann to order anexpansion board (optional).5

285960v1

.2

20 20A 21 40 100 X3B X3A X4

LN

X3

1 2 3 3 421

X7 X2

1 2 33 421

X6

3 421

X5

3 421

X4

RO P Q

Control Connections

36

Electrical Connections (continued)

Overview of electrical connections and plug-in connectors (continued)

Power supply connection of accessoriesThe power supply connection ofaccessories can be made directly at thecontrol. The connection is activatedand deactivated with the system on/offswitch.The Vitotronic 050/Dekamatik-HK1control, the mixing valve extension kitand the Solartrol control require aseparate 120 VAC power supply fromthe wall receptacle.

2-wire cabling required for:Houtdoor temperature sensorHVitotronic 050/Dekamatik-HK1H extension kit for heating circuit withmixing valve

H remote switching of operating modeH remote disableH alarm outputHwall-mount base

3-wire cabling required for:H remote control WS/RSH circulating pump

Note on connection of accessoriesFor details regarding other installation steps required, please reference theInstallation Instructions supplied with the respective accessory part.

Only one accessory part or switch contact can be connected to the contacts of aplug at a time.

5285960v1

.2

Control Connections

37


Routing of connecting cables

1. Secure cables coming from thepower/pump module to the controlmounting bracket with cable ties.Cables must not be securedunderneath mounting bracket, asthis will obstruct the installation ofthe base panel (if necessary, cutflexible conduit to required length).

2. Pull cables between the supportarm and control unit towards you.

It is essential to route cables asillustrated to ensure freedom ofmovement of control unit.Do not kink the capillaries of themanometer.

3. Run cables above the controlmounting bracket directly to thejunction box (circulating pumps).

4. Secure cables below the controlunit with cable ties.

Cables in the vicinity of the controlunit must not be secured to thecontrol unit bracket.

5285960v1

.2

3.

4.2.

1.

When running and securingconnecting cables on site, ensurethat the maximum permissibletemperatures of the cables are notexceeded.

CAUTION

IMPORTANT

IMPORTANT

Control Connections

38


Routing of connecting cables (continued)

5. Loosen and remove junction boxcover.


6. Break off required number of tabsfor external cables to be connected(see page 35).

7. Insert necessary bushings.

8. Slide in bottom portion of the strainrelief clamps at the correspondingbushings (create openings by usinga screwdriver).

9. Run cables through correspondingbushings into the control case orjunction box.

10.Attach top portion of strain reliefclamps.

5285960v1

.2

8.5.

6.

9.

7.

10.

Control Connections

39


Outdoor temperature sensor

1. Remove cover of outdoortemperature sensor.

2.Mount wall-mount base (cable entrymust point downward).

The outdoor temperature sensorshould be mounted 6.6 to 8.2 ft./2 to 2.5 m above ground level on thenorth or northwest wall of thebuilding. In case of a multi-storeybuilding, mount outdoor temperaturesensor in the upper half of thesecond floor.Ensure that sensor is not locatedabove windows, doors and air vents,or immediately underneath a balconyor gutter.The outdoor temperature sensor mustnot be covered by plaster. Ifmounting on an unplastered wall,make allowances for thickness ofplaster or remove sensor beforeplastering wall.

3.Connect cable to terminals (wiresare interchangeable).Cable specifications:2-wire cable, max. cable length95 ft./35 m with a wire size of min.AWG 16 copper.

Cable to the outdoor sensor mustnot be laid near line voltage wiring(120/240 V).

4. Place cover on base and snap intoplace.

5.Connect the outdoor temperaturesensor to terminals ”X6.3” and“X6.4” (wires are interchangeable).

X6

1 2 43

2.

4.

1.

3.

5.

X6

1 2 43

2.

4.

1.

3.

5.

IMPORTANT

IMPORTANT

Control Connections

40


DHW tank temperature sensor Accessory

Install DHW tank temperaturesensor as described in theVitocell InstallationInstructions supplied with theDHW storage tank.

1. Insert plug-in connector ”X7” of theDHW tank temperature sensor intoterminal ”X7”.

Low-loss header sensor

When Vitodens 200 boiler is connectedto a DHW storage tank (optional), theDHW tank temperature sensorcomes prewired to terminals 1 and 2on connector “X7”.Remove and discard connector “X7”from the low-loss header sensor, andrewire low-loss header sensor wires toterminals 3 and 4 on connector “X7”of the DHW tank temperaturesensor .

DHW sensorLow-loss header sensor

5285960v1

.2

1 2 43

X7

X7

3 421

X7

3 421

Control Connections

1 2 43

X4

1.

2.

41


External switching of heating program/External heat demand

Load capacity of the connection is 10mA at 24 V–.

For external call for heat function:

See Start-up/ServiceInstructions with regard tochanging the coding addresses.

1. Remove jumper between ”X4.1” and”X4.2”.

2.Connect switch contact toconnector ”X4”.

3. Set coding addresses 011, 027, and0A2.

See Start-up/ServiceInstructions with regard tosetting coding addresses.

External burner disable

1.Connect switch contact to connector”X6”.

The potential-free contact must befield supplied.

See Start-up/ServiceInstructions regardingchanges to the plug-injumper ”X6” and codingaddresses.

5285960v1

.2

IMPORTANT

1 2 43

X6

1.

IMPORTANT

Control Connections

Conduit holding clips

42

Power/Pump Module Installation

1. Remove cover of power/pumpmodule. Using the four screwssupplied, mount power module baseas shown next to Vitodens boiler.

Mount power/pump module invertical or horizontal position only.DO NOT mount module on theceiling or where it can be exposed tosplashing water.

When installing, note length ofplastic conduit and ensure thatconduit and cable are not undertension after the installation.

2. Run conduit alongside or underneathenclosure of Vitodens 200 boiler.

Plug-in connections ,20A ,

Plug-in connection

Strain relief

3.Make plug-in connections , ,20A , and apply strain relief tocables.Conduit must enter bottom ofVitodens enclosure in the samelocation as piping connections.

H If conduit is routed alongsideboiler, secure to wall, using thesupplied conduit holding clips.

H If required, coil conduit underneathboiler enclosure and secure toboiler frame, using the suppliedwire ties.

5285960v1

.2

IMPORTANT

IMPORTANT

Control Connections

43

Power/Pump Module Installation (continued)

Power supply connection

1. Install power supply receptacle inrange of module power cord. Ensurethe installation is in compliance withthe regulations of the national and/orlocal authorities having jurisdiction.

2.Connect 120 VAC power supply toreceptacle through low water cut-offsafety device, if so required byauthorities having jurisdiction.

Viessmann recommends the installationof a disconnect switch to the 120 VACpower supply outside the boiler room.

3. Plug power/pump module cord intoinstalled receptacle.

See boiler wiring diagram onthe inside of the boilerenclosure panel.

Technical data

Power supplyHRated voltage: 120 VAC, 1 PH.. . . . . . . . . .

HRated frequency: 60 Hz. . . . . . . . . . . . . . . . . . . . . . . . . .

HRated current: 12 A.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Pump outputsH Rated voltage: 120 VAC, 1 PH.. . . . . . . . . .

H Rated frequency: 60 Hz. . . . . . . . . . . . . . . . . . . . . . . . .

H Rated current: 10 A total. . . . . . . . . . . . . . . . . . . . . . .

Pump connections

1. Remove required number ofbreakouts from power/pump module.Install box connectors designed asstrain relief for pump connectingcable.

2. Run cables through box connectorsand secure by tightening connectorscrew.

3.Make connections to plugs , 20A ,in the power/pump module.

DHW recirculation. . . . . . . . . . . . . . . . . . . . . . . . . .

boiler pump with. . . . . . . . . . . . . . . . . . . . . . . . . .

(low-loss headeronly)

20A Heating circuit. . . . . . . . . . . . . . . . . . . . . . . . .

pumpDHW pump.. . . . . . . . . . . . . . . . . . . . . . . . .

H L Line. . . . . . . . . . . . . . . . . . . . . . . . . . .

H Ground. . . . . . . . . . . . . . . . . . . . . . . .

H N Neutral. . . . . . . . . . . . . . . . . . . . . . . . . .

See boiler wiring diagramon the inside of theboiler enclosure panel.

5285960v1

.2

IMPORTANT

Control Connections

44


Product information (expansion board)

The installation of an expansion boardallows for failure alarm output.

Expansion board installation (optional)

1. Remove cover of power/pumpmodule by loosening the two Philipsscrews on either side, and insert thefour standoffs into provided holeslocated within the markedboundaries of the expansion board.

2. Install expansion board on the fourstandoffs and ensure that theexpansion board is locked in placeon all four standoff barbs.

See boiler wiring diagram onthe inside of the boilerenclosure panel.

3.Connect green wire from expansionboard to quick-connect terminal onpower/pump module board marked“G”.

4.Using flat pliers, remove breakouttab from module and remove nutfrom cable gland. Slide cable throughopening to the mounting hole.Secure cable gland by tightening nut.

5. Run expansion board cable alongsidethe plastic conduit to the bottom ofthe Vitodens. Secure cable toVitodens frame with wire ties.

5285960v1

.2

Control Connections

45


Expansion board installation (continued)

6. Remove and discard plug X4 (pink)from boiler control console and insertcable plug X4 into correspondingsocket.

Move all wires connected to plug X4 (ifpreviously installed) to cable plug X4.

7.Apply strain relief to cable.

8. Reinstall Vitodens control consolecover and cover of power/pumpmodule.

Technical data

H Control voltage: 24 VDC, 0.05 A.. . . . . .

H Alarm output: Dry contact. . . . . . . . . . . . . . . . . . . . . .

Rating: 24/250 V,. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5 A max.

5285960v1

.2

IMPORTANT

Control Connections

46

Installing the Programming Unit of the Control Unit

Please note:The control unit comes packagedseparately.

1. Slide control unit onto rails on bothsides of the electrical connectionsunit and snap into place.

Electrical connections of individualcomponents of the programming unitare made automatically uponinsertion of the programming unitinto the control base.Do not kink the capillaries ofmanometer.

2. Lock hinges on each side.

3.Attach junction box cover(circulation pumps).

4.Attach base panel.

5.Attach front enclosure panel.

6. Secure in place by rotating slottedscrew.

5285960v1

.2

2.

4.

1.

3.

1.

IMPORTANT

6. 5.

Appendix

47

Start-up Information

Start-up and adjustments

See Vitodens 200Start-up/Service Instructionsfor details on start-up,adjustments and service.

1. File all Parts Lists, Operating andService Instructions in the ServiceBinder.

2. Install a protective hanging case nearthe boiler and store the ServiceBinder in this location.

Technical DataBoiler Model Model No. WB2 11-44 WB2 15-60Natural gasCSA input MBH

kW55-17216-50

80-23023-67

Propane gasCSA input MBH

kW55-15516-45

80-21423-63

Min. gas supply pressureNatural gasPropane gas

“w.c.“w.c.

411

711

Max. gas supply pressure*1

Natural gasPropane gas

“w.c.“w.c.

1414

1414

Max. operating pressureat 210 ºF/99 ºC

psigbar

453

453

Boiler connectionsBoiler heating supply and return NPTF “Pressure relief valve NPTF “Drain valve (male

thread)

Boiler supply/return forindirect-fired DHW storage tank NPTM “

1¼¾¾

1¼

1¼¾¾

1¼Gas supply connection NPTM“ ¾ ¾Flue gas*2

Temperature (at boiler returnwater temp. of 86 ºF/30 ºC)– at rated full load– at rated partial load

Temperature (at boiler waterreturn temp. of 140 ºF/60 ºC)

ºF/ºCºF/ºC

ºF/ºC

95/3591/33

149/65

104/4095/35

158/70

Boiler max. flow rate*3 GPMltr/h

15.43500

15.43500

Weight lbskg

19890

19890

Boiler water content USGltr

4.316.45

4.316.45

Boiler flue gas connection*4 ∅in/mm 4¼/110 4¼/110

Combustion air supplyconnection*4

outer∅ in/mm 6/150 6/150

*1If the gas supply pressure exceeds the maximum gas supply pressure value, a separate gas pressure regulator must be installed upstream of theheating system.

*2Measured flue gas temperature with combustion air temperature of 68 °F/20 °C.*3See “Typical flow rates” on page 24 in these instructions.*4See Installation Instructions of Vitodens 200 Venting System for details.

Wiring Diagram

5285960v1

.25285960v1

.2

48

5285960v1

.2

BURNER

IGNITIO

NMODULE

LGM

29.X

X

26

14

36

CIRCUIT

BOARD

INFR

ONTFR

AME

A2

X14.3

X14.5

X14.4

164

P

AIR

PRES

SURE

SEN

SOR

20VDC

X13.11

33

X13.10

X13.7

X13.6

35

VALV

E

GAS

COMBIN

ATIO

N

X13.4

X13.3

+-

+-

24V

54

*4

11

TRANSFO

RMER

IGNITIO

N

IONIZATIO

N

ELEC

TRODE

SEN

SOR

TEM

PE-

RATURE

BOILER

X11.3

X11.4

3

X11.2

X11.1

Fo

210

47

FIXED

HIG

HLIMIT

X12.8

X12.9

X12.6

X12.7

X12.3

100

230VAC

M

40

INTER

NALCONNEC

TIO

NS

110

INTER

NALVOLT

AGESUPP

LY

15VAC

24VAC

230VAC

X10.4

X10.3

X10.2

X10.1

NL

F3 T6.3A X

8

X9

K2

40

S1

24VDC

F2

T2.5A

15VAC

T6.3A

F1

24VAC

12

3

X3.1

X3.2

X3.3

10

911

X6.1 1

X6.2

2

OR

X6.4

X6.3 34

X4.2

X4.1 12

X4.4

X4.3 34

12

34

5X7

X5.4

X5.3

34

OR

12

3145

X5.4

X5.3

34

OR

24

23

22

21

120

CONTROLUNIT

VR20

A5

X6

ASDEL

IVER

ED

CONDITIO

N

12

GX4

WS/RSREM

OTE

CONTROLUNIT

(ACCES

SORY)

*2

WALL

MOUNTIN

G

FIXTUREW

ITH

PROGRAMMIN

G

UNIT

*2(A

CCES

SORY)

REV

ERSEJU

MPE

R

X6ON

VR20AS

EXTER

NALDISABLE

OFBURNER

FOLL

OW

S

(ON

SITE)OUTDOOR

TEM

PERATURE

SEN

SOR*2

SEN

SOR

DHW

TANK

DHW

TANK

(SUPP

LIED

WITH

TEM

PERATURE

CONNEC

TIO

NKIT)

*2*5*6

DEM

AND

OFHEA

TIN

GPR

OGRAM

(ON

SITE)

EXTER

NALCHANGEO

VER

OREX

TER

NALHEA

T

MIX

ING

VALV

E

EXTEN

SIO

NKIT

7133392

*2

141

CONNEC

TIO

NOF

DEK

AMATIK-H

K1

230VAC

60HZ

M120VAC

ALA

RM

OUTPU

T

DRY

CONTACT

24/120V,5A

PUMP

DHW

BA

X6

NL

21

EXPA

NSIO

NBOARD

7134211(O

PTIO

NAL)

POW

ER/PUMPMODULE

7134208

EXTER

NALCONNEC

TIO

NS

F2a

T10A

F1a

T0.8A

120VAC

230VAC

G

CABLE

FACTORYSUPPLIED*1

CABLE

FACTORYSUPPLIED

(FIELD

WIRIN

G)

PROGRAMMIN

GUNIT

A4

RED

GREE

N

SW

ITCH

CIRCUIT

BOARD

A3

*8PU

MPS

:120V,60HZ,

10FL

ATOTAL(FIELD

SUPP

LIED

)*9THIS

CONNEC

TIO

NCONTROLS

THEDHW

REC

IRCULA

TIN

GPU

MP(FACTORY

DEF

AULT

SET

TIN

G).

THIS

CONNEC

TIO

NBEC

OMES

BOILER

PUMP,

WHEN

ALO

WLO

SSHEA

DER

ISIN

STALL

ED.DHW

REC

IRCULA

TIO

NFU

NCTIO

NW

ILLNOTBEPO

SSIBLE

INTHIS

CASE.

REF

ERTO

BOILER

INSTALL

ATIO

NIN

STRUCTIO

NSMANUAL.

ON

THEIN

TER

NALCONNEC

TIO

NS,

THECONTACTSOFEA

CH

CONNEC

TOR

ARENUMBER

EDIN

ASCEN

DIN

GORDER

FROM

RIG

HTTO

LEFT

.

ONLY

ONEFU

NCTIO

N/A

CCES

SORY

MAY

BE

ASSIG

NED

TO

EACH

CONNEC

TIO

N.

FLOW

SW

ITCH

LN

X13.19

X13.20

X13.18

X13.13

X13.12

X13.9

X13.8

NL

X4

JUNCTIO

NBOX

FOR

POW

ER/PUMPMODULE

SPE

EDCONTROL

FAN

BURNER

SEN

SOR*7

TEM

PERATURE

SUPP

LY

12

3

X4.2

X4.1 12

(ACCES

SORY)

*5

VITOCONTROL

X6.1

X6.2

21

X1

NL

G

40

120VAC

M

SYSTEM

PUMP

NL

20A

M120VAC

BOILER

PUMP

20

NL

13

2X5

POW

ER/PUMPMODULE

JUNCTIO

NBOX

FOR

R1

R2

R3

CONNEC

TIO

N(EXTER

NAL)

CONNEC

TIO

N(IN

TER

NAL)

20A

20

NL

NL

NL

21

*3

*1

*8*9

*8

*8

*6NOTESET

TIN

GOFCODIN

GADDRES

SES

.*5REM

OVEJU

MPE

RX4.1-X

4.2

WHEN

CONNEC

TIN

G.

*4IN

TER

NALREF

EREN

CEPO

TEN

TIA

L.*3COMMUNICATIO

NMODULE

REQ

UIRED

(ACCES

SORY)

*2ONLY

FORW

EATHER

-COMPE

NSATED

OPE

RATIO

N.

*1ONLY

WITH

EXPA

NSIO

NBOARD

7134211(O

PTIO

NAL)

*7ONLY

WITH

LOW

LOSSHEA

DER

(TRANSDUCER

)

MAIN

ON/O

FFSW

ITCH

COMFO

RTROL

5285964v1.109/07

ELEC

TRODES

AND

IGNITIO

N

99

Co

WARNIN

G!DISCONNEC

TPO

WER

CAUTIO

N!LA

BEL

ALL

WIRES

PRIO

RTO

DISCONNEC

TIO

NW

HEN

SER

VICIN

GCONTROLS

.

WIRIN

GER

RORSCAN

CAUSEIM

PROPE

RAND

DANGER

OUSOPE

RATIO

N.VER

IFY

PROPE

R

IFANY

OFTHEORIG

INALW

IREASSUPP

LIED

WITH

THEAPP

LIANCEMUSTBEREP

LACED

ITMUSTBEREP

LACED

WITH

ITS

EQUIVALE

NT.

BEF

ORESER

VIC

ING

BOILER

.

OPE

RATIO

NAFT

ERSER

VIC

ING.

BK

WH

BK1

BK2

BK3

GNYE

BK2

BK1

REC

IRCULA

TIN

G

PUMP

OR

DHW

DISCONNEC

T

SW

ITCH

AP1 P2L2 L1

MAIN

MAIN

POW

ERSUPP

LY

120V,60HZ,

12A

NG

L

LOWWATERCUT-OFF

SAFETYDEVICE

-TYPICAL

120VAC

WALL

REC

EPTACLE158

X7.4

X7.3

X7.1

X7.21

2

Appendix

49

Lighting and Operating Instructions

5285960v1

.2

FOR YOUR SAFETY READ BEFORE OPERATINGW A R N I N G: If you do not follow these instructions exactly, a fire orexplosion may result causing property damage, personal injury or loss of life.

A. This appliance does not have a pilot. It is equippedwith an ignition device which automatically lightsthe burner. Do not try to light the burner by hand.

B. BEFORE OPERATING smell all around theappliance area for gas. Be sure to smell next to thefloor because some gas is heavier than air and willsettle on the floor.WHAT TO DO IF YOU SMELL GAS• Do not try to light any appliance.• Do not touch any electric switch; do not use anyphone in your building.

• Immediately call your gas supplier from aneighbor’s phone. Follow the gas supplier’sinstructions.

• If you cannot reach your gas supplier, call the firedepartment.

C. Use only your hand to push in or turn the gascontrol knob. Never use tools. If the knob will notpush in or turn by hand, don’t try to repair it, call aqualified service technician. Force or attemptedrepair may result in a fire or explosion.

D. Do not use this appliance if any part has beenunder water. Immediately call a qualified servicetechnician to inspect the appliance and to replaceany part of the control system and any gas controlwhich has been under water.

1. STOP! Read the safety information above on thislabel.

2. Set thermostat or other operating control to lowestsetting.

3. Turn off all electric power to the appliance.

4. This device is equipped with an ignition devicewhich automatically lights the burner. Do not try tolight the burner by hand.

5. Close main gas shut-off valve.

6. Wait five (5) minutes to clear out any gas. Thensmell for gas, including near the floor. If you smellgas, STOP! Follow ”B” in the safety informationabove on this label. If you don’t smell gas, go to thenext step.

7. Open main gas shutoff valve.

8. Turn on all electric power to the appliance.

9. Set thermostat or other operating control todesired setting.

10. If the appliance will not operate, follow theinstructions ”To Turn Off Gas To Appliance” andcall your service technician or gas supplier.

Manual gas shutoff

Open

Closed

TO TURN OFF GAS TO BOILER

1. Set thermostat or other operating control to lowestsetting.

2. Turn off all electric power to the appliance if serviceis to be performed.

3. Close main gas shut-off valve.

OPERATING INSTRUCTIONS

Appendix

50

Ladder Diagram

Legend

X1 Rast-5 terminal,power supply 120 VAC

X1 ,20A , Rast-5 terminal,

power supply for pumps120 VAC, 10 FLA total

X4.1, .G, .2 Rast-5 terminal,power supply for pumps120 VAC, 10 FLA total

F1, F2A Fuses (slow blow)R1, R2, R3 Operating contactsTR Transformer

115/230 VAC, 150 VA

230VAC

0.8A

230VAC

115VAC

F1A

*with low-loss header only

*

5285960v1

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51

5285960v1

.2

Viessmann Manufacturing Company Inc.750 McMurray RoadWaterloo, Ontario • N2V 2G5 • CanadaTel. (519) 885-6300 • Fax (519) 885-0887www.viessmann.ca • [email protected]

Viessmann Manufacturing Company (U.S.) Inc.45 Access RoadWarwick, Rhode Island • 02886 • USATel. (401) 732-0667 • Fax (401) 732-0590www.viessmann-us.com • [email protected]

52

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environm

entally

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ationsu

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.5285960v1

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5285 960 v1 - viessmann · vitodens 200 installation instructions for use by heating contractor...

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