NFPA 96 Fire Codes"'-*Thls Is hot All of the N~PA96 Fire Codes. This Is simply some useful code Issues commercial kitchen exhaust cleaners come across dally.

Ductwork! Access PanelsNFPA96: 5.1.2

Anseams, Joints, and penetrations of the hood enclosure that direct and capture grease-ladenvapors and exhaust gases shall have a liquid tight continuous external weld to the hood's loweroutermost perimeter.

NilPA 96: 7.3.1Openings shall be provided at the sides or at the top of the duct, Whichever Is more accessible,and at changes of direction.

NFPA 96: 7,4.i.1On horizontal ducts, at least one 508 mm x 508 mm (20 in. x 20 In.) opening shall be provldedfor personnel entry.

NFPA 96: 7.4.1.2Where an opening of this size is not possible, openings large enough to permit thoroughcleaning shall be provided at 3.7 m (12 ft) intervals.

NFPA 96: 7.4.2;2Where personnel entry is not possible, adequate access for cleaning shall be provided on eachfloor. .

NFPA96: 7.5.2.1All seams, joints, penetrations, and duct-to-hood collar connectfon.s shall have a liquid tightcontinuous external weld.

Ultimate Responsibility is RestaurantNFPA 96: 4.1.5

The responsibility for Inspection, maintenance, and cleanliness of the ventilation control and fireprotection of the commercial cooking operations shall be the ultimate responsibility of the ownerof the s'istem provided that this responsibility has not been transferred in written form to amanagement company or other party

NFPA96: 4.1,8All interior surfaces of the exhaust system shall be accessible for cleaning and inspection purposes,

Fan Access PanelNFPA96: 8.1.5.3.1

Upblast fans shall be supplied with an access opening of a minimum 76 mm by 127 mm (3 In. by 5In.) or a circular diameter of 101 mm (4 In.) on the curvature of the outer fan housing to allow forcleaning and Inspection of the fan blades.

Electrical Wiring/Fan HingeNFPA96: 7.8.1.1

. Roofto~ terminations shall be arranged with or provided with the following:(8) A hinged upblast fan supplied with flexible weatherproof electrical cable and service hold-openretainer to permit Inspection and cleaning that is listed for commercial cooking equipment. .

NFPA96:. 8.1.1.1Approved upblast fans with motors surrounded by the airstream shall be hinged, supplied withflexibleweatherproof electrical cable and service held-open retainers, and listed for this use.

NFPA96: 9.2,1Wiring systems of any tYpe shall not be Installed in ducts.

Rooftop Grease ContainmentNEPA96: 7.8.2.1

Rooft~p terml~~~le~j;hali be arranged With or provided with the following:·(4)Jtie~blll(y.ti:t~r~}h grease out of any traps or low points formed In the fan or duct near thetermin1rtlory0utiesystem Into a collection container that Is noncombustible, closed, rainproof,and structuraflysou!ld for the service to which it Is applied and that will not sustain combustion(5) A grease collection device that Is applied to exhaust systems that does not Inhibit theperformance of any fan .' .

NFPA96: 8.1.1.3. .lIpblast fans shall h~ve a l;iralndlrectl,!d tb a readily accessible and visible grease receptacle not toexceed 3.8 L(1 gal).

h1spectlon & Cleaning FrequencyNFPA96: 11.4.11.6.1.11.6.2. . " ... The entire eXhaust system shall be Inspected for grease buildup by a properly trained, qualified,

and certified company or person(sj acceptable to the authOrity having Jurisdiction .and Inaccordance with Table 11.4 Upon Inspection, Ifthe exhaust system is found to be contaminatedWith deposits from grease-laden vapors, the contamlnated portions of the exhaust system shall becleaned by a properly trained, qualified, and certified company or persons acceptable to theauthority having jurisdiction. 'Hoods, grease removal devices, fans, ducts, and other appurtenances shall be cleaned to removecombustible contamlnants prior to surfaces becoming heavily contaminated with grease or oilysludge •.

Table 11.4 Schedu .-Type or Volum~ of Cooking Inspectiqn Fre(tllency

Systems serving solid fuel cooking operations M~nthl'lSystems serving high-volume cooking operotkms, Quarterlysuch as.24-hour cooking, charbroiling, or wokcookfng.Syst~trisservlng moderate-volume cooking operations' Semiannually ..5ystemsservlng low-volume cooking operations, .Annuallysl/.ch aschu;ehes, day camps, seasonal businesses,or senior centers .

FiltersNFPA96 6,1.3

Mesh filters shall not be used.NFPA 96 6.2,3.1

Grease filters shall be listed and constructed of steel or listed equivalent material. .NEM 96 11,1.2 '.

. Filter-equipped exhaust systeinS shall1'lQt be operated \\'ithfilters removed.;:,. ," •FireSuppr~ssiol1}';

NPPA 96: .11.2.1Mahiteriance of the fire-extinguishing systems and listed exhaust hoods containin~acOtlstantor fire-activated water system thatis lIitt)d.to extinguish a fire In thegrea:serem611~ devices,hood exhaust plenums, and exhaust ducts shall be made by properly trained, qualified, .andcertified person(s) acceptable to the authority having jurisdiction at least every 6niqnths.

NI1PA96:1P4 .' . _". .... . . . '. .... • .... .. Fusible links' and automatic sprinkler heads shall be replaced at least semiannually or more

frequently if necessary where required by the manufacturer, '.'NFPA96:11.6.4

Components of the flre suppression system shall not be rendered inoperable dUring the. cleaning process. . ,

NI1PA 96: 11,6,7 .Cleaning chemicals shall not be applied on fusible links or other detection devices of theautomatic elttinguishlng ~stem. . . .

Solicl Fuel SystemsNFPA 96; 14,3,3

Exhaust systems serving solid fuelcooking equipment, tncluding gas or electrically operatedequipment, shall be separate from all other exhaust systems.

NPPA 96: i4.4,4 .Wall terminations of solid fuel exhaust systems shall be prohibited.

NFPA 96; 14,8.l . '. . '. ....The flue or chimney shall be Inspected weekly for the following conditions; (1) Residue thatmight begin to restrict the vent or create an additional fuel source (2) Corrosion or physical, damage that might reduce the flue's capability to contain the effluent' . .

NFPA 96: 14,8,3,1 . .' .. The flue or chimney Shall becleaned before these conditions exist

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