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5151094-UIM-H-0220
SECTION VIII: TYPICAL WIRING DIAGRAMS
THREE PHASE
HEAT PUMP WITH OR WITHOUT
ELECTRIC HEAT
208/230-3-60
LOW
VOLTAGE
THERMOSTAT
BOX
W1/E
O
R
C
G
Y1
W2
Demand Defrost Fault Codes
Flashes
NO POWER TO CONTROL
LED OFF
COMPRESSOR OPERATION ACTIVE - COMPRESSOR CONTACTOR ENERGIZED
STEADY RED
CONTROL NORMAL OPERATION - NO CALL FOR COMPRESSOR
SLOW RED
CONTROL NORMAL OPERATION - ASCD (ANTI SHORT CYCLE DELAY) ACTIVE
RAPID RED
HIGH-PRESSURE SWITCH FAULT ( NOT IN LOCKOUT YET )
2 RED FLASHES
SYSTEM IN HIGH-PRESSURE SWITCH LOCKOUT ( LAST MODE OF OPERATION WAS NORMAL COMPRESSOR)
3 RED FLASHES
SYSTEM IN HIGH-PRESSURE SWITCH LOCKOUT ( LAST MODE OF OPERATION WAS DEFROST)
4 RED FLASHES
SYSTEM IN LOW-PRESSURE SWITCH LOCKOUT ( LAST MODE OF OPERATION WAS NORMAL COMPRESSOR)
5 RED FLASHES
LOW VOLTAGE (<19.2 VAC) PREVENTING FURTHER RELAY OUTPUTS FOR > 2 SECONDS
6 RED FLASHES
7 RED FLASHES
LOW VOLTAGE (< 16 VAC) STOPPED CURRENT RELAY OUTPUTS FOR > 2 SECONDS
8 RED FLASHES
LIQUID LINE SENSOR FAILURE ( OPEN OR SHORTED)
9 RED FLASHES
OUTDOOR AMBIENT SENSOR FAILURE ( OPEN OR SHORTED)
10 RED FLASHES
CONTROL FAILURE
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 THREE-PHASE 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
18
CONNECTION WIRING DIAGRAM
LOSS OF CHARGE
REVERSING
VALVE
SOLENOID
HI PRESS
COIL AMBIENT
C
R O Y
W
W out
HPS
LPS
RV RVG C M
DEFROST SETTING
1
2
3
4
DEFROST CONTROL
OD FAN
BLU 27
RED 29
Fault Condition
NOTES:
CAUTION - OPEN ALL DISCONNECTS
BEFORE SERVICING THIS UNIT
CONTACTOR
COIL
COIL
SENSOR
AMBIENT
SENSOR
WHT 17
CONTACTOR
L3
WHT 17
BLK 6
PUR 1
208V
230V
COM
PRI
XFMR
24V SEC
75 VA
3A
FUSE
(CONTINUOUS FAN)
(HEATING SPEED)
(COOLING SPEED)
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.
POWER SUPPLY
208/230-3-60
OPTIONAL CRANKCASE HEATER
USE COPPER
CONDUCTORS
CRANKCASE
ONLY
HEATER
GND
LUG
T3
L1
T1
CONTACTOR
YEL
BLU
L2
T2
CAPACITOR
CONTACTOR
RED 7
BLK/WHT 12
GRN 10
RED 9
BLK 5
PUR 2
(LOW)
1
GRN 25
ID_FAN
(LOW/MED)
2
N
3
BLOWER
G
(MED)
WHT/GRY 35
MOTOR
(MED/HIGH)
4
L
YEL 32
YEL 33
5
C
SEE NOTE 8
(HIGH)
BLU 28
INDOOR BLOWER OFF DELAY: 60 SEC
NOTICE
THIS UNIT IS WIRED
FOR THREE-PHASE POWER.
DO NOT CONNECT TO
A SINGLE-PHASE SUPPLY.
LINE VOLTAGE
FIELD INSTALLED POWER
LOW VOLTAGE
FIELD INSTALLED CONTROL
5146414-UWD-A-0715
Johnson Controls Ducted Systems
TEMPERATURE
SWITCH
L1
L3
COMPR
L2
1
BLK
2
3
BRN
4
OD FAN
MOTOR
5
GRN
6
RED
1
2
GRN
3
4
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