Desa BVC-36Y Owner's Operation And Installation Manual

Contents

www.desatech.com 122280-01D12VEntInG InStaLLatIOnA DESA Heating, LLC or an 8" B-type ventingsystem must be connected to appliance forventing to the outside of building. Transitionpipe model BTC-8 is required for use withB-type venting.Standing codes requirements concerningvent installations may vary within your state,province or local codes jurisdiction. Therefore,it is recommended that you check with yourlocal building codes for specific requirementsor in absence of local codes, follow Section7.0 of the current National Fuel Gas CodeANSI Z223.1/NFPA 54.This gas appliance must be vented to theoutdoors only and may not be terminated intoan attic space or into a chimney flue servicinga solid-fuel burning appliance.Vent terminations must be located in ac-cordance with height and proximity rules ofNFPA No. 54. These rules apply to vents at12" diameter or less and require a minimumheight in accordance with the roof pitch and aminimum of 8 ft. distance from a vertical wallor obstruction (see Figure 11).WARNING: This appliancemust be properly connectedto a system and must not beconnected to a chimney flueservicing a separate solid fuelburning appliance.LowestDischargeOpeningListedVent Cap8 Ft. Min.Roof Pitch x/12Listed Clearance12xListedGasVentH (Min)HeightFrom RoofFigure 11 - Typical TerminationsRoof PitchH (Min.)Feet MeterFlat to 6/12 1.0 0.306/12 to 7/12 1.25 0.38Over 7/12 to 8/12 1.5 0.46Over 8/12 to 9/12 2.0 0.61Over 9/12 to 10/12 2.5 0.76Over 10/12 to 11/12 3.25 0.99Over 11/12 to 12/12 4.0 1.22Over 12/12 to 14/12 5.0 1.52Over 14/12 to 16/12 6.0 1.83Over 16/12 to 18/12 7.0 2.13Over 18/12 to 20/12 7.5 2.27Over 20/12 to 21/12 8.0 2.441 1 /2 "(3.8 cm)Max. 3" (7.6 cm)Max.6" (15.2 cm)Max. 9"(22.9 cm)12"(30.5 cm)OuterSurroundCombustibleMaterial MayBe UsedTOP VIEWSAFEZONEPerpendicularWall33°Figure 10 - Side Clearances - Top View (Cross Section)PREInStaLLatIOn PREPaRatIOnContinued