Roberts Gorden UHA[X][S] 100, UHA[X][S] 45, UHA[X][S] 30, UHA[X][S] 125 Ladder Wiring Diagram

SECTION 9: WIRING

9.6 Ladder Wiring Diagram

				120 VAC
		AXIAL FAN		UHA (300, 350, 400 Only)
	AXIAL FAN
	FLUE BLOWER
			TRANSFORMER
			GAS VALVE
				PRESSURE SWITCH
FLAME	3	2	1
	6	5 4
SENSOR
Flame	IGNITION
	MODULE			Limit Switch Limit Switch (UHA 300,
ELECTRODE Spark				350, 400 Only)
				Manual Reset Limit Switch
				(UHA 30 - 125 Only)
				THERMOSTAT
				CONNECTION

IMPORTANT:

For field wiring into service junction box, or if any of the original wire supplied with the heater

must be replaced, it must be replaced with wiring material having a temperature rating of at least 105° C (221° F) and 600 volts. For supply connections, use No. 14 AWG or larger wires.

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