Williams 2903511, 2903512 installation instructions What to do if the RED Lamp is LIT

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WHAT TO DO IF THE RED LAMP IS LIT

This appliance has an electronic flame superv ision device. If the flame disappears the gas flow will be automatically shut off and the red lamp will light instead of the green one. The appliance will attempt to relight if you do ONE of the following:

A.Turn off the electric supply to the appliance for approximately 40 seconds and turn it on again; OR

B.Turn the thermostat knob to the zero setting, then turn it back to a comfortable setting after approximately 40 seconds; OR

C.Press the SUMMER/WINTER button to the SUMMER position (button down) for approximately 40 seconds and set it back (button up) to the WINTER position.

HOW TO SHUT OFF THE APPLIANCE

1.Turn the thermostat knob to the ZERO position.

2.Turn the I-O switch on the programmable clock to the ZERO position.

3.Turn off all electric supply to the appliance.

4.Turn the gas shutoff valve installed on the gas supply line upstream to the unit to the CLOSED position.

USING THE FEATURES OF YOUR

FURNACE

RESET

MIN

MAX

GREEN LAMP: It is lit when the flame is ON.

RED LAMP: In case the flame disappears, the gas flow will be shut off and the red lamp will be lit. The furnace is locked-out. To reset the furnace, follow the instructions above, "WHAT TO DO IF THE RED LAMP IS LIT."

MANUAL/PROGRAM BUTTON: When the button is down, the furnace keeps the temperature set by the thermostat according to the clock's program. When the button is up, the furnace thermostat maintains the temperature.

THERMOSTAT: Turn clockwise to increase the temperature, turn counterclockwise to decrease it.

SUMMER/WINTER: When the button is up, the furnace will operate in heating mode according to the thermostat and/or clock's program. When the button is down, the appliance will provide ventilation.

MIN/MAX BUTTON: For faster heating, keep this button up. For soft heating and silent operation, keep this button down.

HUMIDIFIER: water filling hole

HUMIDIFIER: For better comfort this furnace is equipped with a humidifier. It is very easy to use. Using a funnel, periodically add water to the small tank located on the top left side of the furnace. Normally, the tank needs to be refilled after 4 - 5 days.

NOTE: The use of water low in limestone or distilled is advisable in order to prevent any possible calcareous sedimentation that may be difficult to remove.

Anticalcareous tablets for humidifiers are commercially available. The humidifier capacity is 11.8 fluid ounces (0.35 liters).

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Contents Direct-Vent Wall Furnace Table of Contents General Information and Technical DataLP Gas Warning Odor Safety Rules and General WarningsSafety Information for Users of LP Gas Technical Data Some Points to RememberInstallation Wall InstallationPage Outside Location for Vent Terminal Ring Gasket Nozzle Diameter Gas ConversionsGas Type Nozzle Part Number Minimum Manifold Gas PressureGas Supply Installing a New Main Gas Shutoff ValvePressure Testing of the Gas Supply System High Altitudes U.S. OnlyChecking the Gas Manifold Pressure First Firing of the FurnaceChecking the Gas Inlet Pressure Electrical Wiring For Your Safety Read Before Operating Operating InstructionsWhat to do if the RED Lamp is LIT Lubrication of Moving Parts Checking and Adjusting the Gas Manifold PressureServicing Flame Visual CheckAnnual 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 OperationTroubleshooting Starting Sequence ElectricalTroubleshooting Step Starting Sequence Gas Replacement Parts Gas AssemblyJMTR018