Service manual
274
WIRING DIAGRAMS
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.
Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
GSZ130181AC, GSZ130241BB, GSZ130301AD, GSZ130361B*
GSZ130421A*, GSZ130481AC, GSZ130601AC
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
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
0140R00171-A
OR
BL/PK
BL
RD
O
Y
C
R
COLOR CODE
BK --------------- BLACK
BL/PK ---------- BLUE/PINK STRIPE
BR --------------- BROW N
GR---------------- GREEN
OR --------------- ORANGE
PU --------------- PURPLE
RD --------------- RED
WH -------------- WHITE
YL --------------- YELLOW
YL/PK----------- YELLOW/PINK STRIPE
COMPONENT CODE
C --------------- CONTACTOR
CADM -------- COMFORT ALERT DIAGNOSTIC MODULE
CCR ----------- COMPRESSOR CONTACTOR RELAY
CH ------------- CRANKCASE HEATER
CHS ----------- CRANKCASE HEATER SWITCH
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
F
A
CTORY WIRING
HIGH VOLTAGE
LOW VOLTAGE
OPTIONAL HIGH VOLTAGE
FI
ELD WIRING
HIGH VOLTAGE
LOW VOLTAGE
LVJB
CONTROL BOX
SC
RD BL
L2
T2
L1
T1
C
BK
BK
BK
RD
RD
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
BR
PU
YL
C
R
S
RD
BK
AUX
MAIN
COMP
YL/PK
LPS
EQUIPMENT
GROUND
USE COPPER
CONDUCTORS
ONLY
DF1
DF2
CH
LVD R
R
CNT
INDOOR POWER SUPPLY
DFT
C
Y
DC
DFT
WH W2
DC
Y
O
O-RV
BL/PK
R
WH
LVD R
DFT
OR
HVDR
BL/PK
HPS
O
C
RVC
W2
R
HVDR
YL/PK
DF2
DF1
BK
CCR
R-DFT
W
CNT
C-RV
C
C
R-PS1
PS2
RD RD RD
BK
YL
BK
YL/PK
BL
YL/PK
BL
YL
CHS
R-DFT
O-RV
C-RV
LPS
PS2
R-PS1
O
W
C
HPS
CCR
}
FIELD LOW
VOLTAGE
CONNECTIONS
RD
BK
CH
CHS
BK
RD
RD
SA
(IF USED)
NOTE 2
DFT RVC
RD
BK
BK
BL/PK
BK
GR
Y
CADM
CADM
T1
L1
T2
L2
ALTERNATE
DOUBLE POLE
CONTACTOR
CADM