Desa CFS18NRA Owner's Operation And Installation Manual

Contents

Desa CFS18NRA Owner's Operation And Installation Manual Manual pdf 12 page image

12104416UNVENTED NATURAL GAS LOG HEATERDESA INTERNATIONALONPOSITOPOSOpenClosedManualShutoffValveFigure 15 - Checking Gas JointsGas MeterManual Shutoff ValveGas ControlLocationTest Pressures Equal To or Less Than1/2 PSIG1. Close manual shutoff valve (see Fig-ure 14).2. Pressurize supply piping system by eitherusing compressed air or opening main gasvalve located on or near gas meter.3. Check all joints from gas meter to manualshutoff valve (see Figure 15). Apply mix-ture of liquid soap and water to gas joints.Bubbles forming show a leak.4. Correct all leaks at once.Figure 14 - Manual Shutoff ValveINSTALLATIONContinuedCHECKING GASCONNECTIONSWARNING: Test all gas pip-ing and connections for leaksafter installing or servicing. Cor-rect all leaks at once.WARNING: Never use an openflame to check for a leak. Apply amixture of liquid soap and waterto all joints. Bubbles forming showa leak. Correct all leaks at once.Pressure Testing gas SupplyPiping systemTest Pressures In Excess Of 1/2 PSIG1. Disconnect heater and its individualmanual shutoff valve from gas supplypiping system. Pressures in excess of1/2 psig will damage heater regulator.2. Cap off open end of gas pipe wheremanual shutoff valve was connected.3. Pressurize supply piping system by ei-ther using compressed air or openingmain gas valve located on or near gasmeter.4. Check all joints of gas supply pipingsystem. Apply mixture of liquid soapand water to gas joints. Bubbles form-ing show a leak.5. Correct all leaks at once.6. Reconnect heater and manual shutoffvalve to gas supply. Check reconnectedfittings for leaks.Pressure Testing Heater GasConnections1. Open manual shutoff valve (see Fig-ure 14).2. Open main gas valve located on or neargas meter.3. Make sure control knob of heater is inthe OFF position.4. Check all joints from manual shutoffvalve to gas control (see Figure 15).Apply mixture of liquid soap and wa-ter to gas joints. Bubbles forming showa leak.5. Correct all leaks at once.6. Light heater (see Operating Heater,pages 14 through 16). Check all otherinternal joints for leaks.7. Turn off heater (see To Turn Off Gas toAppliance, page 15).