Williams 1773512, 1773511 Table of Contents General Information and Technical Data

Contents Williams Furnace Co., 250 West Laurel Street, Colton, CA 92324 U.S.A Direct-Vent Wall FurnaceTable of Contents General Information and Technical Data Instructions to InstallerLP Gas Warning Odor Safety Rules and General WarningsSafety Information for Users of LP Gas That’s your signal to go into immediate actionTechnical Data Some Points to RememberInstallation Wall InstallationFlue outlet tube length = wall thickness + 1-5/16-inches 7.9 mm Outside Location for Vent TerminalAir inlet tube length = wall thickness + 3/32-inches 2.4 mm A + 33.3 mm 13. Relocate the vent cap and attach it with the screws. Figure Nozzle Part Number Gas ConversionsGas Type Nozzle DiameterPressure Testing of the Gas Supply System High Altitude AdjustmentInstalling a New Main Gas Shutoff Valve Gas SupplyChecking the Gas Manifold Pressure First Firing the FurnaceChecking the Gas Inlet Pressure A B CElectrical Wiring Diagram Key OPERATING INSTRUCTIONS FOR YOUR SAFETY READ BEFORE OPERATINGOperating Instructions TO TURN OFF GAS TO APPLIANCEWHAT TO DO IF THE RED LAMP IS LIT HOW TO SHUT OFF THE APPLIANCEUSING THE FEATURES OF YOUR FURNACE Checking, Removing and Reassembling of the Vent Air Intake System Checking and Adjusting the Gas Manifold PressureServicing Lubrication of Moving PartsAnnual Maintenance Requirements Programmable Timer OverviewProgramming the Timer Setting and Adjustment Initial ConditionsDay and Time Setting Manual OperationUsing the Skip Function Cancelling a Single ProgramCancelling of all Preset Programs Skip Function Procedure During OperationStep Troubleshooting Starting Sequence ElectricalTroubleshooting Step Summer Mode StepTroubleshooting Step Starting Sequence Gas Electric Box Replacement PartsGas Assembly M2 - Fan Thermostat Fan Blades 4 pieces M - Fan Motor 2 Pieces RP8 Flame Sensor RP7 Spark Igniter 2 piecesS - Combustion Blower Motor M1 - Overheat Thermostat Part NumberJLTT015 Part Number JLTT023 Part Number JMTR017