Electrical Wiring | Williams 2903511, 2903512 specification

Electrical Wiring


	EV	GAS VALVE 1 (SAFETY SHUTTER)	SF	FLAME VIEW LAMP (GREEN LAMP)
	EV1		SB	LOCK-OUT LAMP (RED LAMP)
	EV2	HI-LO FLAME OPERATOR (*)	TR	CURRENT TRANSFORMER 120-24 V
	M	FAN MOTOR (n. 2 MOTORS ON 8001/8002)	Z1	RESET AND SUMMER – WINTER SWITCH (*)
	M1	OVERHEAT THERMOSTAT	Z2	HI-LO FLAME AND FAN SPEED SWITCH (*)
	M2	FAN THERMOSTAT	Z3	MANUAL – PROGRAM MODE SWITCH (*)
	M9	MAINS FUSE – 5X20 size – 4A	Z8	PROGRAMMABLE TIMER (*)
	NP	PRESSURE SWITCH	Z9	ROOM THERMOSTAT
	RP8	FLAME SENSOR	L1	SUPPLY LINE – LIVE WIRE
	RP7	SPARK IGNITER (n. 2 pcs)	L2	SUPPLY LINE – NEUTRAL WIRE
	S	COMBUSTION BLOWER MOTOR	GND	SUPPLY LINE – GROUND WIRE

11

Image 12

Williams 2903511, 2903512 installation instructions Electrical Wiring

Contents

Direct-Vent Wall Furnace Table of Contents General Information and Technical Data Safety Rules and General Warnings Safety Information for Users of LP GasLP Gas Warning Odor Technical Data Some Points to Remember Installation Wall InstallationPage Outside Location for Vent Terminal Ring Gasket Gas Conversions Gas Type Nozzle Part NumberNozzle Diameter Minimum Manifold Gas Pressure Installing a New Main Gas Shutoff Valve Pressure Testing of the Gas Supply SystemGas Supply High Altitudes U.S. Only First Firing of the Furnace Checking the Gas Inlet PressureChecking the Gas Manifold Pressure Electrical Wiring For Your Safety Read Before Operating Operating Instructions What to do if the RED Lamp is LIT Checking and Adjusting the Gas Manifold Pressure ServicingLubrication of Moving Parts Flame Visual Check Annual Maintenance Requirements Programmable Timer Overview Setting and Adjustment Initial Conditions Day and Time SettingProgramming the Timer Manual Operation Cancelling a Single Program Cancelling of all Preset ProgramsUsing the Skip Function Skip Function Procedure During Operation Troubleshooting Starting Sequence Electrical Troubleshooting Step Starting Sequence Gas Replacement Parts Gas Assembly JMTR018