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5020803-UIM-M-0120
SECTION VIII: TYPICAL WIRING DIAGRAMS
HEAT PUMP WITH OR WITHOUT
ELECTRIC HEAT
208/230-1-60
CONNECTION
WIRING DIAGRAM
LOW
VOLTAGE
THERMOSTAT
BOX
W1/AUX
W1/O/B
R
C
G
Y1
W2/E
LINE VOLTAGE
FIELD INSTALLED POWER
LOW VOLTAGE
FIELD INSTALLED CONTROL
Flashes
STEADY RED
RAPID RED
2 RED FLASHES
3 RED FLASHES
4 RED FLASHES
5 RED FLASHES
6 RED FLASHES
7 RED FLASHES
8 RED FLASHES
9 RED FLASHES
10 RED FLASHES
1. ALL FIELD WIRING TO BE ACCOMPLISHED FOLLOWING CITY, LOCAL AND/OR
NATIONAL CODES IN EFFECT AT THE TIME OF INSTALLATION OF THE UNIT.
2. CAUTION : LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING
CONTROLS. WIRING ERRORS CAN CAUSE IMPROPER AND DANGEROUS
OPERATION. IF ANY OF THE WIRING, AS SUPPLIED WITH THE UNIT, MUST
BE REMOVED, IT MUST BE REPLACED WITH TYPE 105 C. 600 VOLT
WIRE OR EQUIVALENT CLEARLY RENUMBERED FOR IDENTIFICATION.
VERIFY PROPER OPERATION AFTER SERVICING.
3. FACTORY WIRED FOR 230 VOLT SUPPLY POWER. FOR 208 VOLT, MOVE
BLACK WIRES FROM THE 230 TO THE 208 VOLT TAP ON THE TRANSFORMER.
4. MOTORS ARE INHERENTLY PROTECTED.
FIGURE 11: Connection Wiring Diagram
20
LOSS OF CHARGE
HI PRESS
C
R O Y
W
W out
HPS
LPS
RV RVG C M
DEFROST SETTING
1
2
3
4
DEFROST CONTROL
Demand Defrost Fault Codes
Fault Condition
NO POWER TO THE CONTROL
LAMP OFF
COMPR. OPERATION ACTIVE - COMPR. CONTACTOR ENERGIZED
CONTROL NORMAL OPERATION - NO CALL FOR COMPRESSOR
SLOW RED
CONTROL NORMAL OPERATION - ASCD (ANTI SHORT CYCLE DELAY) ACTIVE
HIGH-PRESSURE SWITCH FAULT ( NOT IN LOCKOUT YET )
SYSTEM IN HIGH-PRESSURE SWITCH LOCKOUT ( LAST MODE OF OPERATION WAS NORMAL COMPRESSOR)
SYSTEM IN HIGH-PRESSURE SWITCH LOCKOUT ( LAST MODE OF OPERATION WAS DEFROST)
SYSTEM IN LOW-PRESSURE SWITCH LOCKOUT ( LAST MODE OF OPERATION WAS NORMAL COMPRESSOR)
LOW VOLTAGE (<19.2 VAC) PREVENTING FURTHER RELAY OUTPUTS FOR > 2 SECONDS
LOW VOLTAGE (< 16 VAC) STOPPED CURRENT RELAY OUTPUTS FOR > 2 SECONDS
LIQUID LINE SENSOR FAILURE ( OPEN OR SHORTED)
OUTDOOR AMBIENT SENSOR FAILURE ( OPEN OR SHORTED)
CONTROL FAILURE
CAUTION - OPEN ALL DISCONNECTS
REVERSING
VALVE
BEFORE SERVICING THIS UNIT
SOLENOID
CONTACTOR
COIL
COIL
SENSOR
AMBIENT
SENSOR
WHT 17
WHT 17
BLK 6
208V
230V
PRI
COIL AMBIENT
24V SEC
40 VA
3A
FUSE
COND FAN
BLU 27
RED 29
NOTES:
5. SEE UNIT NAMEPLATE FOR MAXIMUM FUSE AND/OR CIRCUIT BREAKER SIZE
AND MINIMUM CIRCUIT AMPACITY.
6. SELECT COOLING (YELLOW) BLOWER SPEED THAT WILL DELIVER
APPROXIMATELY 400 CFM/TON FOR COOLING AND HEAT PUMP OPERATION.
7. IF ELECTRIC HEATING IS INSTALLED, SELECT A HEATING (WHITE/GRAY)
BLOWER SPEED THAT DELIVERS SUFFICIENT AIRFLOW FOR THE AMOUNT
(KW) OF HEAT INSTALLED. SEE TABLE IN INSTALLATION INSTRUCTIONS.
8. BLOWER MOTOR SPEED CONNECTIONS SHOWN ARE TYPICAL,
BUT MAY VARY BY MODEL AND APPLICATION.
OPTIONAL CRANKCASE HEATER
POWER SUPPLY
208/230-1-60
CRANKCASE
USE COPPER
CONDUCTORS
ONLY
GND
LUG
PUR 1
BLK
COM
L1
T1
XFMR
SINGLE POLE
CONTACTOR
L2
T2
DUAL
CAPACITOR
FAN
HERM
RED 7
BLK/WHT 12
GRN 10
RED 9
BLK 5
PUR 2
(LOW)
1
(CONTINUOUS FAN)
GRN 25
ID_FAN
(LOW/MED)
2
3
BLOWER
(HEATING SPEED)
(MED)
WHT/GRY 35
MOTOR
4
(COOLING SPEED)
(MED/HIGH)
YEL 32
YEL 33
5
(HIGH)
SEE NOTE 7
BLU 28
INDOOR BLOWER OFF DELAY: 60 SEC
1202703-UWD-D-0716
Johnson Controls Ducted Systems
TEMPERATURE
HEATER
SWITCH
BLK
BLK
BLK
C
BRN
S
COMPR
RED
R
C
1
BLK
2
3
BRN
OD FAN
4
MOTOR
5
GRN
6
RED
N
1
G
2
GRN
L
3
C
4
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