Desa CFS18PRA Owner's Operation And Installation Manual

Contents

Desa CFS18PRA Owner's Operation And Installation Manual Manual pdf 12 page image

12104417UNVENTED PROPANE/LP GAS LOG HEATERDESA INTERNATIONALONPOSITIOPOSIOpenClosedManualShutoffValvePressure 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 oropening propane supply tank valve.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.Test Pressures Equal To or Less Than1/2 PSIG1. Close manual shutoff valve (see Fig-ure 15).2. Pressurize supply piping system by ei-ther using compressed air or openingpropane supply tank valve.3. Check all joints from propane supplytank to manual shutoff valve (see Fig-ure 16). Apply mixture of liquid soapand water to gas joints. Bubbles form-ing show a leak.4. Correct all leaks at once.INSTALLATIONContinuedFigure 15 - Manual Shutoff ValveFigure 16 - Checking Gas JointsWARNING: Never use an openflame to check for a leak. Apply amixture of liquid soap and waterto all joints. Bubbles formingshow a leak. Correct all leaks atonce.WARNING: Test all gas pip-ing and connections for leaksafter installing or servicing. Cor-rect all leaks at once.CHECKING GASCONNECTIONSCAUTION: Make sure exter-nal regulator has been installedbetween propane supply andheater. See guidelines underCon-necting to Gas Supply, page 11.Pressure Testing Heater GasConnections1. Open manual shutoff valve (see Fig-ure 15).2. Open propane supply tank valve.3. Make sure control knob of heater is inthe OFF position.4. Check all joints from manual shutoffvalve to gas control (see Figure 16). Ap-ply mixture of liquid soap and water togas joints. Bubbles forming show a 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).CAUTION: Use pipe joint seal-ant that is resistant to liquid pe-troleum (LP) gas.Install sediment trap in supply line as shownin Figure 14, page 11. Locate sediment trapwhere it is within reach for cleaning. Locatesediment trap where trapped matter is notlikely to freeze. A sediment trap traps mois-ture and contaminants. This keeps themfrom going into heater controls. If sedimenttrap is not installed or is installed wrong,heater may not run properly.CAUTION: Avoid damage togas control. Hold gas control withwrench when connecting it to gaspiping and/or fittings.Apply pipe joint sealant lightly to malethreads. This will prevent excess sealantfrom going into pipe. Excess sealant in pipecould result in clogged heater valves.Manual Shutoff ValvePropaneSupplyTankControl ValveLocation