Lennox International Inc G24-200 G24−200 FIELD WIRING DIAGRAM, G UNITS − 460V 3PH 60HZ, Page

			G24−200 FIELD WIRING DIAGRAM
				G UNITS − 460V 3PH 60HZ
				J UNITS − 575V 3PH 60HZ					FUSED OR
									CIRCUIT BREAKER
									DISCONNECT
									(Furnished by
COMBUSTION		PRIMARY			COMBUSTION	PRIMARY			installer)
			PRESSURE					PRESSURE	L1	L2 L3	GND
AIR BLOWER		LIMIT			AIR BLOWER		LIMIT
			SWITCH					SWITCH
		GAS	IGNITION		GAS		IGNITION
			CONTROL				CONTROL
	VALVE				VALVE
			BOARD				BOARD
					FLAME ROLLOUT
					SWITCH
(Alternate make-up					DOOR
box right side)		DOOR
		INTERLOCK		J84	PLUG INTERLOCK			BLOWER DECK
RED	L1		1	2 3	4			RED
							L1
RED
	L2							RED
			RED		BLUE		L2
RED
	L3							RED
							L3

MAKE-UP BOX	RED						BLACK	MAKE−UP BOX	(Alternate make-up
T3 TRANSFORMER								T13 TRANSFORMER	box left side)
						WHITE		460v: white − red	REMOVE JUMPER IN
460v: white − red
								230v: white − black
									TWO-STAGE MODE
230v: white − black
		BLACK	WHITE		RED			R3	THERMOSTAT
TERMINAL STRIP				RED				See Note 2
	TB34							C	C
SEE NOTE 1
	1							W1	W1

51

RELAY		2	GROUND				G	G
K109	7	2	LUG	BLUE			W2
								W2
			BLACK
		YELLOW	BLACK				Y1	Y1
		YELLOW
RELAY		BLUE	BLACK	L1	L2	L3	Y2	Y2
	7
K105
		BLUE
			BLACK				R
								R
RELAY				T1	T2 T3
K13	4							ECONOMIZER
		K3 CONTACTOR					ECON	NOTES :
							TB1 TERMINAL STRIP
	T1 TRANSFORMER							1 − Relay K109 can be used
	24v: blue − yellow
							CONTROL BOX	for an accessory rated at the
	460v: black − black
								same voltage as power supply.
								2 − Field installed and supplied
								resistor (R3), is required in two-
								stage applications when using
								electro-mechanical thermostat.
			BLOWER MOTOR					(Use a 150 ohm, 10 watt resistor
								− Lennox part number P−8−6256.)

FIELD-INSTALLED DRIVE KIT COMPONENT

FACTORY INSTALLED

LINE VOLTAGE FIELD INSTALLED 24 VOLTS FIELD INSTALLED

FIGURE 17

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