Lennox International Inc 4HP18LT manual Wire Diagram

Wire Diagram

OUTDOOR

FAN	BLUE
	BLACK
	GREEN
RED
RED
	YELLOW			Y2
RED
			SOLE	R
				C
R	S	C	BLACK
				L
				Y1
COMPRESSOR			A132

CRANKCASE HEATER

GROUND

LUG

			S40
			DEFROST
			THERMOSTAT
	L1		BLACK
1			K1-1
	208-230/60/1
			YELLOW
	L2
		HR1	RED

LT BLUE

RED

YELLOW

DUAL CAPACITOR				RED					THERMOSTAT
	F	C	H		FAN			C	R W1 O Y1	Y2
				BLACK
				O-OUT		W1		W1
		RED		LO-PS		L	C	C
						24V	L	L
				DF			R	R
				COMMON			O	O
BLUE				Y1 OUT			Y1	Y1
COMPRESSOR CONTACTOR				HI-PS
				DEFROST CONTROL
		YELLOW
					L2	1		208-230/60/1
					L1
					GROUND
					CMC1				THERMOSTAT
		REVERSING				FAN			C	R W1 O Y1 Y2
		VALVE
				L1		O-OUT			W1
	B1			S87		LO-PS		L	C
								24V	L
C	S	R		S6		DF			R
				BLUE		COMMON			O
				K1		Y1 OUT			Y1
A132		L	Y2 Y1 R C	S4
						HI-PS
	RED			RED
				YELLOW

LT BLUE

ORANGE

FAN

BLACK

CMC1

EQUIPMENT	S40	H	C	F
GROUND			C12	B4
				PURPLE

	DESCRIPTION
KEY	COMPONENT
A132	DIAGNOSTIC MODULE
B1	COMPRESSOR
B4	MOTOR - OUTDOOR FAN
C12	CAPACITOR - DUAL
CMC1	CONTROL-DEFROST
HR1	HEATER - COMPRESSOR
K1-1	CONTACTOR - COMPRESSOR
L1	VALVE - REVERSING
S4	SWITCH - HIGH PRESSURE
S6	SWITCH - DEFROST
S40	THERMOSTAT - CRANKCASE
S87	SWITCH - LOW PRESSURE

1FOR USE WITH COPPER CONDUCTORS ONLY. REFER TO UNIT RATING PLATE FOR MINIMUM CIRCUIT AMPACITY AND MAXIMUM OVERCURRENT PROTECTION SIZE.

WARNING--

ELECTRIC SHOCK HAZARD, CAN CAUSE INJURY OR DEATH. UNIT MUST BE GROUNDED IN ACCORDANCE WITH NATIONAL AND LOCAL CODES.

DENOTES OPTIONAL COMPONENTS LINE VOLTAGE FIELD INSTALLED

CLASS II VOLTAGE FIELD INSTALLED 24 VOLT FACTORY INSTALLED

LO-PS

S87

LOW PRESSURE SWITCH

HI-PS

S4

HIGH PRESSURE SWITCH

48630-001

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