Desa CHAM55N Safety Information And Installation Manual

Contents

www.desatech.com901918-01J 94. Place burner pan assembly in center of chime-nea floor with front of pan facing chimeneaopening.5. Attach loose end of flex connector to the 3/8"flare fitting at rear of chimenea.INSTALLATIONContinuedFigure 7 - Installing Manual Control ValveBulkheadFittingFlareFitting11/16"WrenchCONNECTING TO NATURAL GASSUPPLYWARNING: A qualified ser-vice person must connect logset to gas supply. Follow alllocal codes.WARNING: Never connectheater to private (non-utility)gas wells. This gas is commonlyknown as wellhead gas.IMPORTANT: Check gas line pressure beforeconnecting heater to gas line. Gas line pressuremust be within the range of pressure specified inFigure 9, page 10. If gas line pressure is higher,damage to the control valve could occur.CAUTION: Use only new,black iron or steel pipe. Inter-nally-tinned copper tubing maybe used in certain areas. Checkyour local codes. Use pipe of 1/2"(13 mm) diameter or greater toallow proper gas volume to logset. If pipe is too small, undueloss of volume will occur.WARNING: Use pipe jointsealant that is resistant to liquidpetroleum (LP) gas.For natural gas units, a minimum 1/2" (13 mm)diameter or greater rigid black iron supply linemust be provided down stream from gas meter andat above ground location of outdoor appliance.Special code provisions apply to outdoor pipingwhen installed above ground and underground. Alloutdoor gas piping must be installed and protectedin accordance with local code and in absence oflocal code with Part 3 of the National Fuel GasCodes ANSI Z223.1/NFPA 54 (U.S.) or CAN/CSAB149 Installation Codes (Canada).A flexible gas line and an equipment shutoffvalve with pressure test point must be providedupstream of manual control valve provided withthe chimenea.A model GA5010 equipment shutoff valve with a1/8" NPT pressure tap may be purchased throughyour dealer. See Accessories, page 17.A model GA5080 3/8" flexible supply line may bepurchased through your dealer. See Accessories,page 17.IMPORTANT: Install equipment shutoff valve atan accessible point in the supply line ahead of theflexible connection. The equipment shutoff valveis for shutting off the gas to the appliance whena leak occurs between the supply connection andthe manual control valve.Codes require that a 3" (77 mm) minimum dripleg or sediment trap be installed in the supply linenearest the inlet of the appliance. If not alreadyprovided at the outlet of gas meter, check withlocal codes as to whether a drip leg or sedimenttrap need be provided (see Figure 8).Figure 8 - Gas Connection* Purchase the optional CSA design-certifiedequipment shutoff valve from your dealer. SeeAccessories, page 17." (7.7 mm)MinimumSediment TrapFrom Gas Meter [5" (17 mm) W.C.to 10.5" (67 mm) W.C. Pressure]CSA Design-CertifiedEquipment Shutoff ValveWith 1/8" NPT Tap*ApprovedFlexible GasHose (if allowedby local codes)Cap Pipe TeeNipple Joint