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WIRING DIAGRAMS
20
WARNING
HIGH VOLTAGE!
DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS
UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO
DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.
SSZ160[60]1AB/AC
Wiring is subject to change, always refer to the wiring diagram on the unit for the most up-to-date wiring.
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.
3) CRANKCASE HEATER MAY BE
FACTORY OR FIELD INSTALLED.
COMP
ALTERNATE DOUBLE
POLE CONTACTOR ONLY
IO
T1
C
M
A
I
N
R
A
U
X
5
S
SR
SA
2
1
RCCF
SC
T2
C
L1
L2
(IF USED)
CH
C
F
M
A
I
N
A
U
X
IO
CM
LPS
0140R00114 Rev. A
OR
PU
BL
RD
O
Y
C
R
NOTE 1
COLOR CODE
BK --------------- BLACK
BL/PK ---------- BLUE/PINK STRIPE
BR --------------- BROWN
OR --------------- ORANGE
PU --------------- PURPLE
RD --------------- RED
WH -------------- WHITE
YL --------------- YELLOW
YL/PK--------- YELLOW/PINK STRIPE
COMPONENT CODE
C --------------- CONTACTOR
CH ------------- CRANKCASE HEATER
CM ------------ OUTDOOR FAN MOTOR
CMR ---------- CONDENSER MOTOR RELAY
COMP -------- COMPRESSOR
CS ------------- COMPRESSOR SOLENOID
DC ------------- DEFROST CONTROL
DFT ----------- DEFROST THERMOSTAT
DT ------------- DISCHARGE THERMOSTAT
HPS-------------HIGH PRESSURE SWITCH
HVDR -------- HIGH VOLTAGE DEFROST RELAY
IO -------------- INTERNAL OVERLOAD
LPS ------------ LOW PRESSURE SWITCH
LVDR --------- LOW VOLTAGE DEFROST RELAY
LVJB ---------- LOW VOLTAGE JUNCTION BOX
RCCF --------- RUN CAPACITOR FOR COMPRESSOR & FAN
RVC ----------- REVERSING VALVE COIL
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
FACTORY WIRING
HIGH VOLTAGE
LOW VOLTAGE
OPTIONAL HIGH VOLTAGE
FIELD W
IRING
HIGH VOLTAGE
LOW VOLTAGE
RD
SA
(IF USED)
NOTE 2
LVJB
CONTROL BOX
SC
RD BL
L2
T2
L1
T1
C
BK
BK
BK
RD
RD
BL
BL
PU
BL
RD
RCCF
F
C
HERM
YL
YL
YL
BR
RD
PU
YL
RD
SR
5
2
1
BK
YL
BL
IO
CM
AUX
MAIN
BK
BR
PU
YL
C
R
S
RD
BK
AUX
MAIN
COMP
BK
DFT
YL/PK
LPS
EQUIPMENT GROUND
USE COPPER
CONDUCTORS ONLY
DF1
DF2
(HIGH)
CH
(IF USED)
NOTE 3
W2
LVDR
O
R
O
O
C
RVC
W2
INDOOR POWER
SUPPLY
R
C
DFT
C
Y
DC
R
DFT
RVC
BK
RD
RD
BK
CH
(IF USED) NOTE 3
BK
BK BK
WH
W2
DC
OR
C Y
O O
BL
PU
BK
RD
R R
RD
LVDR
W2
WH
DFT
RD
H
V
D
R
DF2
DF1
BK
BK
HPS
BL/PK
HPS
BL/PK
BL/PK
BK
C
CS
CMR
LPS
O
O
O
C
RVC
W2
R
C
HPS
Y2 C
Y2
CS
1
3
DFT
(
L
O
W
)
5
4
2
HDVR
CMR
(HIGH)
(LOW)
RD
DT
BK
BK
YL/PK
CS
C
Y2
1 3
4
2
5
CMR
L2
T2
L1
T1
ALTERNATE
DOUBLE POLE
CONTACTOR
BK
BK
BL
BL
RD
RD
YL Y2
BL/PK
Y