Regency GF900C Gas Fireplace 27INSTALLATIONAERATION ADJUSTMENTThe burner aeration is factory set but may needadjusting due to either the local gas supply oraltitude. Open the air shutter for a blue fl ame orclose for a more yellow fl ame.Minimum Air Shutter Opening:NG 3/8" (9.5mm)LPG Full OpenULPG Full OpenNote: Any damage due to carboning resultingfrom improperly setting the aerationcontrols is NOT covered under warranty.GAS PIPE PRESSURETESTINGThe appliance must be isolated from the gas sup-ply piping system by closing its individual manualshut-off valve during any pressure testing of thegas supply piping system at test pressures equalto or less than 1/2 psig. (3.45 kPa). Disconnectpiping from valve at pressures over 1/2 psig.The manifold pressure is controlled by a regulatorbuilt into the gas control, and should be checkedat the pressure test point.Note: To properly check gas pressure, bothinlet and manifold pressures should bechecked using the valve pressure portson the valve.1) Make sure the unit is in the "OFF" position.2) Loosen the "IN" and/or "OUT" pressure tap(s),turning counterclockwise with a1/8" wide fl at screwdriver.3) Attach manometer to "IN" and/or "OUT" pressuretap(s) using a 5/16" ID hose.4) Turn the unit on with the remote or wall switch5) The pressure check should be carried out withthe unit burning and the setting should be withinthe limits specified on the safety label.6) When fi nished reading manometer, turn offthe unit, disconnect the hose and tighten thescrew (clockwise) with a 1/8" fl at screwdriver.Note: Screw should be snug, but do not overtighten.Note: If you have an incorrect fl ame pattern,contact your Regency ® dealer for furtherinstructions.Incorrect flame pattern will have small, probablyyellow flames, not coming into proper contactwith the rear burner or flame sensor.BurnerFlame SensorPilot IgnitorPILOT ADJUSTMENTPeriodically check the pilot flames. Correct flamepattern has two strong blue flames: 1 flowingaround the flame sensor and 1 flowing acrossthe burner (it does not have to be touching theburner).845 S.I.T. VALVEDESCRIPTION1) On-Off Solenoid Valve EV12) On-Off Solenoid Valve EV23) Inlet Pressure Test Point4) Outlet Pressure Test Point5) Connection for Pressure Regulator/CombustionChamber Compensation6) Pressure Regulator for Minimum and MaximumOutlet Pressure7) Gas Outlet Pressure Electric Modulator8) Pilot Outlet9) Main Gas OutletHIGH ELEVATIONThis unit is approved for altitude 0 to 1372m.GAS LINEINSTALLATIONSince some municipalities have additional localcodes it is always best to consult with your localauthorities.When using copper or fl ex connectors use onlyapproved fi ttings. Always provide a union sothat gas lines can be easily disconnected forservicing. Flare nuts for copper lines and fl exconnectors are usually considered to meet thisrequirement.NOTE: A shutoff / dante valve should besupplied in or near the unit (or as per localcodes) for ease of servicing this appliance.GF900-NG SYSTEM DATAMin. Supply Pressure 1.13 kpaLow Setting Man.Pressure0.4kpaMax. ManifoldPressure0.87 kpaInjector Size #37 DMSMinimum Input 22.7 MjMaximum Input 32 mjGF900-LPG SYSTEM DATAMin. Supply Pressure 2.75 kpaLow Setting Man.Pressure1.6 kpaMax. ManifoldPressure2.49 kpaInjector Size #53 DMSMinimum Input 22.1 MjMaximum Input 28 MjGF900-ULPG SYSTEM DATAMin. Supply Pressure 2.75 kpaLow Setting Man.Pressure1.6 kpaMax. ManifoldPressure2.49 kpaInjector Size #53 DMSMinimum Input 22.1 MjMaximum Input 28 Mj