Lennox International Inc. 4HP18LT - Manual (Page 27)

506470-01 Issue 1007 Page 27
Wire Diagram
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
FOR 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.
OUTDOOR
FAN
F C H
R S C
H C F
C
EQUIPMENT
GROUND
HR1
L2
208-230/60/1
L1
K1-1
BLACK
YELLOW
RED
RED
C12
ORANGE
B4
PURPLE
B1
GROUND
LUG
GROUND
L2
L1
208-230/60/1
DUAL CAPACITOR
RED
COMPRESSOR CONT
ACT
OR
BLACK
COMPRESSOR
CRANKCASE HEATER
RED
YELLOW
DENOTES OPTIONAL COMPONENTS
LINE VOLTAGE FIELD INSTALLED
CLASS II
VOLTAGE FIELD INSTALLED
24 VOLT FACTORY INSTALLED
1
1
S R
1
S40
C R W1 O Y1
W1
C
L
R
O
Y1
FAN
O-OUT
LO-PS
DF
HI-PS
COMMON
Y1 OUT
DEFROST CONTROL
REVERSING
VALVE
DEFROST
THERMOSTAT
FAN
CMC1
BLACK
S40
W1
C
L
R
O
Y1
FAN
O-OUT
LO-PS
DF
HI-PS
COMMON
Y1 OUT
CMC1
THERMOSTAT
THERMOSTAT
K1
S6
L1
LO-PS
S87
LOW PRESSURE
SWITCH
HI-PS
S4
HIGH PRESSURE
SWITCH
48630-001
BLACK
SOLE
A132
C R W1 O Y1 Y2
S87
S4 Y1 C L Y2 R
A132
L
R
Y1
C
Y2
L
24V
L
24V
W1
C
L
R
O
Y1
YELLOW
LT BLUE
RED
BLUE
RED
YELLOW
LT BLUE
BLUE
GREEN
BLUE
YELLOW
BLACK
RED
RED
RED
Y2