GSZ16 Service Manual
124
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.
AEPF******CA
NO MARK INDICATES NO HEAT KIT INSTALLED
A
FTER INSTALLING OPTIONAL HEAT KIT, MARK A "X" IN THE PROVIDED ABOVE.
MARK ACCORDING TO NUMBER OF HEATER ELEMENT ROWS INSTALLED
BK
RD
BL
FIELD CONNECTION
* SEE NOTE 7
LOW VOLTAGE
VSTB
DS1
COPPER
(SEE RATING PLATE)
POWER SUPPLY
CONTROLS SHOWN WIT H UTILITIES IN "ON" POSITION AND THERMOSTAT IN "OFF" POSITION.
PN. B1368270 RE V. A
J1
BOX
THER MOST
A
TS
W2
HEATER
WH
CR
J3J2
BR
RD
BL
Y/Y2
24 VA C
Y1
O
RD
PU
HUMIDISTAT
HUM
RY1G
YL
GR
RD
BL
WH
BR
W1
THERMO STAT
YCON
CON DENSE R
COM W2OED
W1
OUTDOOR
HEATPUM P
W/W 2
R
WH
BL
OTC OT 1 COT 2OE\W1
BR
BL
YL
BL
YL
YCON
TO
CONDENSER
C
PL2
312
BR
BK
PL1
PU
WH
BL
BR
RD
YL
GR
Y1C
W2
R
TO
Y/Y2
G
1
RD
23
BK
L1 L2
BK
BK
HTR 1
TL
HTR 1
RD
9
8
7
R
WH
BL
PU
TL
BK
5
6
3
4
PL 1
BK
RD
1
2
WH
RD
BK
BK
RD
BK
RD
R
HTR 2
TL
0140A00041-B
EM
2
24 VOLT
O
SEE NOTE 2
COLOR CODE
PROGRAM JUMPER
7. SE E COMPOSITE WIRING DIAGRAMS IN INSTALLATION INSTRUCTIONS FOR PROPER LOW VOLTAGE
CONNECTIONS AND DETAILS ON COMPATIBLE THERMOSTATS AND THEI R CONNECTIONS.
3. FOR OUTDOOR THERMOSTAT OPERATION OF SECOND STAGE HEAT, CUT PJ2 & ADD OT18-60 TO OTC & OT2.
2. FOR TWO STAGE ELECTRIC HEAT APPLICATIONS CUT PJ4. (USE ONLY ON 15 & 20 KW MODELS).
4. FOR SINGL E STAGE COOLING APPLICATIONS CONNECT THERMOSTAT TO Y/Y2 ONLY,
TAPE OR REMOVE Y1 CONNECTION. CONNECT CONDENSING UNIT TO YCON & C.
6. RED WIRES TO BE ON TRANSFORMER TERMINAL 3 FOR 240 VOLTS AND ON TERMINAL 2 FOR 208 VOLTS.
1. FOR
HEAT PUMP APPLICATIONS REMOVE ORANGE JUMPER WIRE BETWEEN O & Y1.
EVAPORATOR MOTOR
5. WHEN HUMIDSTAT IS PROVIDED CUT PJ6 . THERMOSTAT OPENS ON HUMIDITY RISE.
NOTES:
EM
BK
RD
GR
PJ2,PJ4, PJ6
SEE NOTE 3
BLACKBK
PL
EM
YL
RD
BL
PLUG
RED
YELLOW
BLU E
WH WHITE
BL
456789
WH
RD
RD
BL
COM
3
BL
5
TR
240
2
208
1
24V
4
RD
456789
SEE NOTE 5
HUM
R
PJ6
2
OT
1
OT
PJ2
W2
OT
C
5
PL2
TR
4
PL2
2
1
PL1
2
FAC TORY WIRING
WIRING CODE
FIELD WIRING
HI GH VOLTA GE
LO W VOLTAGE
HI GH VOLTA GE
LO W VOLTAGE
TERMINAL BOARD
VAR IABL E SPEED TRANSFORMERVSTB TR
COMPONENT CO DE
PU PURPLE
PINK
ORANGE
BROWNBR
PK
0R
GREENGR
SEE NOT E 1
NOTE DIODE
ON VSTB
*SEE NOTE 7
W1
W1
6
W2W E
PJ4
5
DIOD E
IN4005
Y1
Y Y2
YCON
PL2
208/240 VOLTS
3
TO LOW VO LTAGE
TERMINAL BOARD
G
C
NOTE 4
SEE
4
PL2
1
PL2
1
PL1
BK
6
8
9
7
2
RD
PU
4
5
3
BK
BK
1
PL 1
BK
RD
YL
M1
M2
BK
RD
YL
RD
R1
M4
RD
BK
M3
HTR 3
TL
HTR 2
HTR 1
TL
TL
PU
M2
R2
YL
M1
BL
WH
BR
BL
RD
BK
RD
BK
TL
HTR 1
BK
HTR 4
HTR 3
HTR 2
BK
RD
9
7
8
2
5
6
3
4
PL 1
1
RD
M1
YL
BK
M2
BL
WH
6
BL
RD
BK
YL
8
9
7
M6
M5
M3
R1
M4
RD
PU
M7
R2
M8
BL
TL
TL
TL
YL
BL
RD
BK
RD
BL
BR
4
5
3
2
BK
PL 1
1
OT2
HUM
W1
OT1
W2
PJ2
PJ6
PJ4
SEE NOTE 8
8. DISCARD ORIGINAL "PL1" PLUG CONNECTOR WHEN INSTALLING OPTIONAL HEAT KIT.
RELAY
THERMAL LIMIT
R
HEAT ELEMENT
HTR
TL
ONE (1) ELEMENT ROWS TWO (2) ELEMENT ROWS THREE (3) ELEMENT ROWS FOUR (4) ELEMENT ROWS
O
W2
BR
OR
BR
RD
R
FL FUSE LIN K
FL
M1
M2
FL
FL
M1
M2
M3
M4
FL
FL
FL
FL
FL
FL
FL
L1 L2
L1L1 L2 L2
L1 L2 L2L1
FOR HEAT
PUMPS ONLY
RD
OR
USE COPPER WIRE
EQUIPMENT GROUND
USE COPPER WIRE
EQUIPMENT GROUND
USE COPPER WIRE
EQUIPMENT GROUND