Raypak 514-824 Installation And Operating Instructions Manual

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Raypak 514-824 Installation And Operating Instructions Manual Manual pdf 11 page image

GAS SUPPLY CONNECTIONSGas piping must have a sediment trap ahead of theheater gas controls, and a manual shut off valve locatedoutside the heater jacket. All gas piping should be testedafter installation in accordance with local codes.MANUAL SHUT OFF VALVEGAS INLET HEATER JACKETSEDIMENT GASTRAP UNION VALVEFig. #8090.0CAUTION: the heater and its manual shut off valvemust be disconnected from the gas supply during anypressure testing of that system at test pressures inexcess of 1/2 Psig (3.45 KPA). Dissipate test pressurein the gas supply line before reconnecting the heater andits manual shut off valve to gas supply line. FAILURETO FOLLOW THIS PROCEDURE MAY DAMAGE THEGAS VALVE. OVER PRESSURED GAS VALVES ARENOT COVERED BY WARRANTY. The heater and itsgas connections shall be leak tested before placing theappliance in operation. Use soapy water for leak test.Do NOT use open flame.NOTE: Do not use teflon tape on gas line pipe thread.A flexible sealant is recommended.A minimum of 7î W.C. and a maximum of 14î W.C.upstream pressure under load, and no load conditionsmust be provided for natural gas or a minimum of 12îW.C. and a maximum of 14î for propane gas.GAS PRESSURE REGULATORThe gas pressure regulator is preset and sealed at 4îW.C. for natural gas, and 11î W.C. for propane gas.Between the gas valve and the burners is a 1/8î pipe plug.The pressure at this point, taken with a manometer,should be about 3.7î W.C. natural gas and 10.5î W.C.propane gas. If an adjustment is needed, remove sealand turn adjustment screw clockwise to in-crease pressure or counter clockwiseto decrease pressureGAS PRESSURE MANOMETERTEST UPSTREAMMANUALSHUT-OFFVALVEGAS PRESSURE TESTAT GAS VALVEGAS PRESSURE TESTAT HEATER Fig. # 8149.011