GVZC20 Service Manual
WIRING DIAGRAM
HIGH VOLTAGE!
D
ISCONNECT ALL POWER BEFORE SERVICING
OR INSTALLING THIS UNIT.
M
ULTIPLE
POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY
CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.
110
Wiring is subject to change. Always refer to wiring diagram on the unit for the most up to date wiring.
Control Board
Terminal side
Compressor
Terminal side
U V W
U V W
U V W
U V W
U V W
U V W
Wiring
connection 1
Wiring
connection 2
Wiring
connection 3
NOTE: The compressor can operate normally in any of the following wiring connections shown on the right.
(Wiring connection between control board and compressor terminal)
NOTES:
0
X21A
X11A
AMBIENT
SEG1
SEG2
SEG3
EEV
X25A
M1C
BK
RD
YL
M1F
BK
WH
RD
L2
L1
TERMINAL BLOCK
FIELD WIRING
H/LPT
INVERTER BOARD
COMPRESSOR
TERMINAL ORIENTATION
X108A
Z1C
Z2C
R
V
C
208/240 V
3
1
2
24V
1
2
R
C
W1
Y1
Y2
L
TO INDOOR
UNIT
TRANSFORMER
X12A
X17A
+
-
HPS
E1
HR1
HR3
BR
WH
HR2
HR4
X32A
X851A
POWER CONDITIONER
GR
GROUND LUG
+
-
THERMISTOR/TEMPERATURE SENSOR
MOTOR
HIGH/LOW PRESSURE TRANSDUCER(H/LPT)
HIGH PRESSURE SWITCH(HPS)
DS1/DS2 DIP SWITCH
SEG1-SEG3 7-SEGMENT DISPLAY
Z1C-Z4C FERRITE CORE
BS1-BS3 PUSH BUTTON SWITCH
RVC REVERSING VALVE COIL
M1C COMPRESSOR MOTOR
M1F FAN MOTOR
NOTE 1
1
OFF
ON
DS1
1
OFF
ON
DS2
V
W
U
Z3C
C
O
I
L
C
IR
C
U
I
T
L
I
Q
U
I
D
L
IN
E
D
IS
C
H
A
R
G
E
L
I
N
E
D
E
F
R
O
S
T
C
OLOR C
OD
E:
RD-------------
BR-------------
GR------------
BK-------------
WH------------
YL-------------
BL-------------
GY------------
PU------------
1.THE POSITION OF THE SELECTOR SWITCHES (DS1/DS2) INDICATE FACTORY SETTING.
2. MOTOR OVERLOAD PROTECTION PROVIDED BY INVERTER : SEE TABLE
3. USE COPPER CONDUCTORS ONLY.
4. CLASS 2 WIRE
TERMINAL
CONNECTOR
NOISELESS EARTH
ELECTRICAL GROUND
HIGH VOLTAGE
LOW VOLTAGE
HIGH VOLTAGE FIELD
Z4C
SEE NOTE 3
GR
WH
BK
SEE NOTE 3
BK
BK
PU
RD
2
2
BS1
BS2
BS3
X52A
SHARE DATA
BK
RD
C
O
M
PON
E
NT COD
E
U
V
W
GY
BK
NOTE 1
RD
YL
BL
RING
COLOR
0140R00344-K
208-230 V
60 HZ
SEE NOTE 4
RED
BROWN
GREEN
BLACK
WHITE
YELLOW
BLUE
GRAY
PURPLE
SEE NOTE 3
ON
ON
OFF