Service Instructions
158
WIRING DIAGRAMS
Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
*SX180[36-60]1A*
USE N.E.C. CLASS 2 WIRE
NOTES:
1) TO INDOOR UNIT LOW VOLTAGE
TERMINAL BLOCK & INDOOR
THERMOSTAT.
2) START ASSIST FACTORY
EQUIPPED WHEN REQUIRED.
COMP
IO
T1
C
M
A
I
N
R
A
U
X
5
S
SR
CADM
SA
2
1
RC
SC
T2
C
L1
L2
(IF USED)
C
Y2
C
A
D
M
CADM
C
A
D
M
C
R
Y1
DC
SOL
CS
Y2
C
INDOOR POWER
SUPPLY
C
LPS
HPS
Y1Y2
CR
0140R00106
PU
YL
BL
RD
Y1
Y2
C
R
LVJ B
NOTE 1
COLOR CODE
BK --------------- BLACK
BL --------------- BLUE
BL/PK ---------- BLUE/PINK STRIPE
BR --------------- BROWN
GR --------------- GREEN
PU --------------- PURPLE
RD --------------- RED
WH -------------- WHITE
YL --------------- YELLOW
YL/PK ---------- YELLOW/PINK STRIPE
GR/YL ---------- GREEN/YELLOW STRIPE
COMPONENT CODE
C --------------- CONTACTOR
CADM -------- COMFORT ALERT MODULE
CM ------------ OUTDOOR FAN MOTOR
COMP -------- COMPRESSOR
CS ------------- COMPRESSOR SOLENOID
HPS ----------- HIGH PRESSURE SWITCH
IO -------------- INTERNAL OVERLOAD
LPS ------------ LOW PRESSURE SWITCH
LVJB ---------- LOW VOLTAGE JUNCTION BOX
RC ------------ COMPRESSOR RUN CAPACITOR
SA ------------- START ASSIST
SC ------------- START CAPACITOR FOR COMPRESSOR (OPTIONAL)
SR ------------- START RELAY FOR COMPRESSOR (OPTIONAL)
CONTROLS SHOWN WITH THERMOSTAT IN 'OFF' POSITION.
OUTDOOR POWER SUPPLY
SEE RATING PLATE
WIRING CODE
FACTOR Y WIRING
HIGH VOLTAGE
LOW VOLTAGE
OPTIONAL HIGH VOLTAGE
FIE
LD WIRING
HIGH VOLTAGE
LOW VOLTAGE
RD
SA
(IF USED)
NOTE 2
LV J B
CONTROL BOX
BK
SC
RD BL
L2
T2
L1
T1
C
BK
BK
RD
RD
BL
BL
YL/PK
PU
BL
RD
RC
YL
YL
YL
BR
RD
YL
RD
SR
5
2
1
BK
YL
BL
CM
WH
(HIGH)
BR
GR/YL
YL
(LOW)
YL
C
R
S
RD
BK
AUX
MAIN
COMP
CS
Y2
C
BK
RD
BL/PK
BL/PK
HPS
LPS
YL
BK
RD
DC
SOL
YL
PURD
BL
CADM
Y2 R C Y1
YLRD
BK
R C S
EQUIPMENT GROUND
USE COPPER
CONDUCTORS ONLY
ALTERNATE DOUBLE
POLE CONTACTOR ONLY
YL/PK YL/PK
YL/PK
BL/PK
BL/PK
PU
CM
CM
L1
L2
GND
L1
L2
GND
Y
L
W
H
B
L
BL
(COM)
ALTERNATE DOUBLE
POLE CONTACTOR
L1
T1 T2
L2
YL
BK
C
HERM