11. Wiring Diagram
continuous on - 24VAC supplied to Y terminal of defrost control.
Flash on/off - System in defrost operation.
1/2+1/2
1 flash - Pipe/coil sensor open or short circuit.
1/2+1/2
2 flash - Vent/suction sensor short circuit.
1/2+1/2
3 flash - LPS & HPS open circuit.
1/2+1/2
4 flash - CT sensor out of max range.
HR24D1VAR
HR24C1VAR
HR42A1VAR
HR48C1VAR
ON
OFF
OFF
OFF
HR18A1VAR
HR48D1VAR
OFF
OFF
OFF
OFF
HR60C1VAR
HR48A1VAR
HR60A1VAR
ON
ON
ON
OFF
HR30A1VAR
HR24A1VAR
HR30C1VAR
HR36C1VAR
HR60D1VAR
HR30D1VAR
HR36D1VAR
M
BK
BK
BK
WH
R
Dip 2
Dip 1
OFF
OFF
1
60Hz 1PH
RVS
BK
BK
208/230V
L2
GND
L1
CCH
BK
C
6
OUTDOOR
UNIT
CMPR
USE COPPER CONDUCTORS ONLY
WARNING CABINET MUST BE PERMANENTLY GROUNDED
AND ALL WIRING TO CONFORM TO I.E.C.,N.E.C.,C.E.C.,
C.L.C. AND LOCAL CODES AS APPLICABLE.
REPLACEMENT WIRE MUST BE THE SAME GAGE AND
INSULATION TYPE AS ORIGINAL WIRE.
RD
PU
BK
THERMOSTAT
COLOR CODES
BK - BLACK BL - BLUE GY - GRAY
BR - BROWN GR- GREEN OR - ORANGE
PU - PURPLE RD - RED VI - VIOLET
WH - WHITE YL - YELLOW
COMPONENT CODES
BCR - BLOWER CONTROL RELAY
BCAP - RUN CAPACITOR BLOWER MOTOR
CC - COMPRESSOR CONTACTOR
CCH - CRANKCASE HEATER (OPTIONAL)
CHS - CRANKCASE HEATER SWITCH (OPTIONAL)
CMPR - COMPRESSOR
DFC - DEFROST CONTROL BOARD
HPS - HIGH PRESSURE SWITCH
LPS - LOW PRESSURE SWITCH
IBM - INDOOR BLOWER MOTOR
ODS - OUTDOOR TEMPERATURE SENSOR
OFM - OUTDOOR FAN MOTOR
RCAP - RUN CAPACITOR COMPRESSOR
RVS - REVERSING VALVE SOLENOID
STCAP - START CAPACITOR (OPTIONAL)
STRLY - START RELAY (OPTIONAL)
STRTH - START THERMISTOR (OPTIONAL)
TRAN - TRANSFORMER 230/208 SELECTABLE
LED Flash Codes(LED illuminates during unit operation only )
COM
RD
2
C
12SEER
loop CT once
HR42C1VAR
24VAC COMMON
24VAC POWER
HR36A1VAR
loop CT once
Dip 4
Dip 3
OFF
OFF
loop CT twice
10SEER
loop CT twice
HR18C1VAR
12SEER
10SEER
7
8
R C
W
Y O
T
BL
JK1
L N
RD
CN2
RD
RD
C
CN1
S
F/H
C V
WH
OR
YL
GY
JK2
A
REVERSING VALUE
COMPRESSOR
HPS
YL
W
loop CT once
13SEER
HR42D1VAR
loop CT twice
13SEER
HR18D1VAR
INDOOR FAN CONTROL
R
C
G
T
8
RD
8
R
RD
OR
L2
BL
BR WH
RESISTANCE
HEAT CONTROL
G
C
W2
O
Y
W
BL
BL
GR
RD-LO
RD
PU
CN6
JK4
F
CN3
V
CN4
V
ODS
A
CN8
LED
JK3
1
CT
PS
CN5
F
PU
VENT SENSER
CN7
VS
PS
VS
PIPE SENSER
LPS
YL
RD
RD
4
PU
RD
CC
RD
STCAP
M
BR
RD
BL
3
BK-HI
L1
BK
BK
208
TRAN
230
BCAP
BR
PU
R
S
BL
7
5
8
6
COM
2
L2
WH
IBM
GND
BCR
3
1
4
NO
NC
2
60Hz 1PH
L1
BK
208/230V
BK
1
9
BR
RD
BK
BL
PU
1
1 2
2
4
4 5
5
3
3
WH
6
6
BR
3 4
BL
PU
WH
6
5
SW
-2
OD
A
COOL
LED
RHS-2
HEAT
COOL
OFF
OFF
HEAT
AUTO
RHS-
1
ON
FA
N
CA
TS
HA
SW
-1
LINE VOLTAGE
FACTORY STANDARD
FIELD INSTALLED
OPTIONAL
LOW VOLTAGE
FACTORY STANDARD
FIELD INSTALLED
Heat Pump Wiring Diagram
H
STRLY
YL
S
RD
C
H
C
RCAP
5
S
M
R
BR
BR
6
OFM
FL
RD
FL
ELECTRIC HEATER KIT
BK
L2
RD
BK
UNIT
INDOOR
BRK L1
RD
RD
RD
BK
TL
RD
TL
OPTIONAL
BK
0010575257
ON
D
IP
1 2 3 4
XT
OUTDOOR TEMPERATURE
RD
RD
1)Confirm defrost control board (DFC) dip switch settings and CT application for system selection as shown in adjacent table. Optional components may be field or factory installed.
2)If LPS and/or HPS not installed or removed, a jumper wire must be present across connector CN8 of the defrost control board (DFC) for system to operate.
3)For proper system operation, consult indoor unit and outdoor unit installation instructions to confirm system match up and blower speed selection.
4)Alternate double pole contactor used on some systems.
5)Only one start assist method to be used at a time, consult outdoor unit installation instructions for application information. Use only factory approved accessories.
6)Optional OFM components may connect capacitor common and motor common, for reciprocating compressor there may have crankcase heater consult outdoor unit installation
instructions for details. Select the running capacitor(one or dual)and connect. If IFM or OFM only have one capacitor wire, connect Com wire to capacitor.
7)To protect equipment from operation at low outside ambient temperatures,connect outdoor unit terminal T and equipped indoor thermostat terminal T as shown.
8)To activate electric heat circuit during defrost cycle, connect outdoor W terminal to available indoor heat circuit W or W2 .
9)Indoor unit shipped without optional electric heater kit. To install optional heater kit, remove power pig tail up to 9 pin plug.Install heater kit and connect with mating 9 pin plug. Run system
power connections directly to electric heater kit power terminals. Consult heater kit installation instructions for complete details.
Note
: The diagram wiring of the fan motor maybe have some difference from the real parts due to
different types of fan motor ,the detailed information can refer to the fan motor nameplate.
Outdoor Wiring Diagram (HR18
A
1VAR—HR60
A
1VAR)
Commercial Air Conditioner
Model: heat pump, 10SEER UNITS
