Desa CGEFP33NRB Owner's Operation And Installation Manual

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111245-01AFor more information, visit www.desatech.comFor more information, visit www.desatech.com1717INSTALLATIONConnecting Fireplace To Gas Supply (Cont.)Checking Gas ConnectionsINSTALLATIONContinuedInstallation Items Needed• 5/16" hex socket wrench or nut-driver• Phillips screwdriver• sealant (resistant to propane/LP gas, not provided)1. If fireplace screen and floor are still installed, see RemovingFireplace Screen and Floor Assembly, page 8.2. Route gas line (provided by installer) from equipment shutoffvalve to fireplace. Route flexible gas supply line through oneof the access holes.CONNECTING FIREPLACE TO GAS SUPPLY3. Attach the flexible gas line to gas supply (see Figure 26). Checktightness of flexible gas line attached to gas regulator of fire-place (see Figure 26).4. Check all gas connections for leaks. See Checking Gas Con-nections.5. Replace fireplace floor assembly. Feed flexible gas line intofireplace base area while replacing fireplace floor assembly.Make sure the entire flexible gas line is in fireplace base area.Note: Be careful of wires and components on underside offireplace floor. Reattach fireplace floor assembly with screwsremoved in step 3 of Removing Fireplace Screen and FloorAssembly, page 8.NOTICE: Most building codes do not permit con-cealed gas connections. A flexible gas line is pro-vided to allow accessibility from the fireplace (seeFigure 26). The flexible gas supply line connection tothe equipment shutoff valve should be accessible.Figure 26 - Attaching Gas Lines TogetherFrom Gas Meter (Natural)From External Regulator (Propane/LP)Flexible Gas Line fromFireplace Gas RegulatorTo FireplaceGas RegulatorEquipment Shutoff ValveProvided by InstallerPressure Testing Gas Supply Piping SystemTest Pressures In Excess Of 1/2 PSIG (3.5 kPa)1. Disconnect appliance with its appliance main gas valve (con-trol valve) and equipment shutoff valve from gas supply pip-ing system. Pressures in excess of 1/2 psig will damage fire-place 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 or opening main gas valvelocated on or near gas meter for natural gas, or using com-pressed air.4. Check all joints of gas supply piping system. Apply noncorrosiveleak detection fluid to all joints. Bubbles forming show a leak.5. Correct all leaks at once.6. Reconnect fireplace and equipment shutoff valve to gas sup-ply. Check reconnected fittings for leaks.Test Pressures Equal To or Less Than 1/2 PSIG (3.5 kPa)1. Close equipment shutoff valve (see Figure 27, page 18).2. Pressurize supply piping system by either opening propane/LPsupply tank valve for propane/LP gas or opening main gas valvelocated on or near gas meter for natural gas, or using com-pressed air.3. Check all joints from gas meter for natural gas or propane/LPsupply to equipment shutoff valve for propane/LP gas (see Fig-ures 28 or 29, page 18). Apply noncorrosive leak detectionfluid to all joints. Bubbles forming show a leak.4. Correct all leaks at once.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 fora leak. Apply a noncorrosive leak detection fluid to alljoints. Bubbles forming show a leak. Correct all leaksat once.WARNING: For propane/LP units, make sure exter-nal regulator has been installed between propane/LPsupply and heater. See guidelines underInstallingGas Piping to Fireplace Location, page 15.