Desa Vanguard VGN30B Owner's Operation And Installation Manual

Contents

Desa Vanguard VGN30B Owner's Operation And Installation Manual Manual pdf 15 page image

15100099IMPORTANT: Hold pressure regulator with wrench when connecting it to gas pipingand/or fittings.PressureRegulatorTee JointReducerBushing to1/8" NPT1/8" NPTPlug TapTestGaugeConnection *SedimentTrapTee JointPipeNippleCapManualShutoffValve *HeaterCabinet1/2" NPTPipe NippleFigure 12 - Gas ConnectionNote: Burner bracketnot shown for clarity3" MinimumFromGas Meter(4" W.C. to 10.5" W.C.Pressure)CONNECTINGTO GASSUPPLYContinuedGround JointUnion* An A.G.A. design certified manual shutoff valve with 1/8" NPT tap is an acceptablealternative to test gauge connection. Purchase the optional A.G.A. design certifiedmanual shutoff valve from your dealer. See Accessories, page 27.CHECKINGGASCONNECTIONSWARNING ICON G 001 WARNINGNever use an open flame to check for a leak. Apply a mixture ofliquid soap and water to all joints. Bubbles forming show a leak.Correct all leaks at once.WARNING ICON G 001 WARNINGTest all gas piping and connections for leaks after installing orservicing. Correct all leaks at once.PRESSURE TESTING GAS SUPPLY PIPING SYSTEMTest Pressures In Excess Of 1/2 PSIG1. Disconnect heater and its individual manual shutoff valve from gas supplypiping system. Pressures in excess of 1/2 PSIG will damage heater regulator.2. Cap off open end of gas pipe where manual shutoff valve was connected.3. Pressurize supply piping system by either using compressed air oropening main gas valve located on or near gas meter.Continued