GAS FURNACESUSER’S MANUALFIRE OR EXPLOSION HAZARD• Failuretofollowsafetywarningsexactlycouldresultinseriousinjuryorpropertydamage.• Ins
10STARTUP&SHUTDOWNFigure1.GasValvesSINGLE STAGE VALVEMODULATING VALVETWO - STAGE VALVESTARTING THE FURNACE1. Make sure the filter is clean an
11MAINTENANCE ITEMSFREQUENCYOFMAINTENANCEbEGINNING OF EACHHEATING SEASONEND OF EACHHEATING SEASONMONTHLYVerify furnace area is free of combustible m
Specifications & illustrations subject to change without notice or incurring obligations.O’ Fallon, MO | Printed in U.S.A. (09/11)708967A (Replaces
3IMPORTANT SAFETY INFORMATION...4Gas Supply & Piping ...4Venting System ...
4IMPORTANT NOTE: Ifthegassupplyfailstoshutoffor if overheating occurs, shut off the gas valve tothefurnacebeforeshuttingoffthe
5IMPORTANT SAFETY INFORMATIONdetector in hallways near the bedrooms in each sleeping area. CO detectors should be certified to the most recent requirem
6AbOUT THE FURNACEINTRODUCTIONCongratulations on the purchase on your new furnace! ou
7COMPONENTLOCATIONSFORNON-CONDENSINGTYPEFURNACESBlowerDoorSwitchBurnerAssemblyFlame SensorGasManifoldGas ValveIgniterInducer AssemblyPressureSwit
8Blower AssemblyBlower Door SwitchBurnerAssemblyFurnaceControlBoardFinishFlangeFlameSensorGasManifoldGasValveIgniterInducerAssemblyMain AirLimit Switc
9AIR FLOW1 2 345 6 78BurnerAssemblyFinishFlangeIgniterRoll-OutSwitchGas ValveFurnaceControl BoardCondensatePressureSwitchesTransformerMotorControlBoar
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