Desa K42EN Series Owner's Operation And Installation Manual

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111922-01CFor more information, visit www.desatech.comFor more information, visit www.desatech.com1919FIREPLACE INSTALLATIONContinuedFIREPLACE INSTALLATIONInstalling Gas Piping to Fireplace Location (Cont.)Connecting Fireplace to Gas SupplyChecking Gas ConnectionsWARNING: Use pipe joint sealant that is resistantto liquid petroleum (LP) gas.We recommend that you install a sediment trap/drip leg in supplyline as shown in Figure 31. Locate sediment trap/drip leg where itis within reach for cleaning. Install in piping system between fuelsupply and fireplace. Locate sediment trap/drip leg where trappedmatter is not likely to freeze. A sediment trap traps moisture andcontaminants. This keeps them from going into fireplace gas con-trols. If sediment trap/drip leg is not installed or is installed wrong,fireplace may not run properly.Figure 31 - Gas ConnectionCSA Design-CertifiedEquipment Shutoff Valvewith 1/8" NPT Tap*3" MinimumApproved FlexibleGas LineCap Pipe Nipple Tee JointSediment Trap/Drip LegNatural - FromGas Meter (5.5"W.C. to 10.5"W.C. Pressure)Propane/LPFrom ExternalRegulator (11"W.C. to 14"W.C. Pressure)* The CSA design-certified equipment shutoff valve may be sup-plied with the appliance or you can purchase it from your retailer.CONNECTING FIREPLACE TO GAS SUPPLYInstallation Items Needed• 5/16" hex socket wrench or nut-driver• sealant (resistant to propane/LP gas, not provided)1. Open lower louver door panel by gently pulling forward.2. Route flexible gas line (provided by installer) from equipmentshutoff valve to fireplace. Route flexible gas supply line throughone of the access holes on side of fireplace.3. Attach flexible gas line from gas supply to control valve (seeFigure 32).4. Check all gas connections for leaks. See Checking Gas Con-nections.Figure 32 - Connecting Flexible Gas Line to Electronic Valve1/2" NPT IncomingGas Line Inlet Pressure Tap Outlet Pressure TapEquipmentShutoff Valve Flexible Gas LineDo NOT KinkNote: Wire Connections Not Shown for ClarityRed Surface IndicatesFor Propane/LP Use OnlyPressure Testing Gas Supply Piping SystemTest Pressures In Excess Of 1/2 PSIG (3.5 kPa)1. Disconnect fireplace and its individual equipment shutoff valvefrom gas supply piping system. Pressures in excess of 1/2 psig(3.5 kPa) will damage fireplace gas regulator.2. Cap off open end of gas pipe where equipment shutoff valvewas connected.3. Pressurize supply piping system by either opening propane/LPsupply tank valve for propane/LP gas fireplace or opening maingas valve located on or near gas meter for natural gas fire-place, or using compressed air.4. Check all joints of gas supply piping system. Apply noncorro-sive leak detection fluid to all joints. Bubbles forming show aleak. Correct all leaks at once.5. Reconnect fireplace and equipment shutoff valve to gas sup-ply. Check reconnected fittings for leaks.CHECKING GAS CONNECTIONSWARNING: Test all gas piping and connections,internal and external to unit, for leaks after installingor servicing. Correct all leaks at once.WARNING: Never use an open flame to check for aleak. Apply noncorrosive leak detection fluid to all joints.Bubbles forming show a leak. Correct all leaks at once.