Desa CGMFN Owner's Operation And Installation Manual

Contents

www.desatech.com119315-01A 15iNsTallaTioNContinuedCHECKING GAS CONNECTIONSWARNING: Test all gas pipingand connections, internal andexternal to unit, for leaks afterinstalling or servicing. Correctall leaks at once.WARNING: Never use an openflame to check for a leak. Applya noncorrosive leak detectionfluid to all joints. bubbles form-ing show a leak. Correct all leaksat once.CAUTION: Make sure exter-nal regulator has been installedbetween propane/LP supplyand fireplace. See guidelinesunder Connecting to Gas Sup-ply, page 13.PRESSURE TESTING GAS SUPPLYPIPING SYSTEMTest Pressures In Excess Of 1/2 PSIG(3.5 kPa)1. Disconnect appliance with its appliance maingas valve (control valve) and equipmentshutoff valve from gas supply piping system.Pressures in excess of 1/2 psig will damageheater regulator.2. Cap off open end of gas pipe where equipmentshutoff valve was connected.3. Pressurize supply piping system by eitheropening propane/LP supply tank valve forpropane/LP gas or opening main gas valvelocated on or near gas meter for natural gasor using compressed air.4. Check all joints of gas supply piping system.Apply noncorrosive leak detection fluid to alljoints. Bubbles forming show a leak.5. Correct all leaks at once.6. Reconnect fireplace and equipment shutoffvalve to gas supply. Check reconnected fit-tings for leaks.Test Pressures Equal To or Less Than1/2 PSIG (3.5 kPa)1. Close equipment shutoff valve (see Figure 16).2. Pressurize supply piping system by eitheropening propane/LP supply tank valve forpropane/LP gas or opening main gas valvelocated on or near gas meter for natural gasor using compressed air.3. Check all joints from gas meter to equipmentshutoff valve for natural gas or propane/LPsupply to equipment shutoff valve forpropane/LP (see Figures 17 or 18). Applynoncorrosive leak detection fluid to all joints.Bubbles forming show a leak.4. Correct all leaks at once.Figure 16 - Equipment Shutoff ValveOpenClosedEquipmentShutoff ValveFigure 17 - Checking Gas Joints(Propane/LP Only)Propane/LPSupply TankEquipmentShutoff ValveGas ValveEquipmentShutoff ValveGasMeterFigure 18 - Checking Gas Joints (NaturalGas Only)Gas Regulator orGas Control Valve