5285477-UIM-A-1016
20
Johnson Controls Unitary Products
FIGURE 12:
Ladder Wiring Diagram
BLK
BLK
BLK
BLU
K
L
B
RED
YEL
BRN/WHT
RED
R
U
P
K
L
B
PUR
BLU
BLK
RED
BLK/WHT
GRN
GRN
BLK/WHT
BLK
L2
L3
L1
T1
T2
ID BLWR
MOTOR
ID BLWR
MOTOR
CAPACITOR
OD FAN
MOTOR
COMPRESSOR
CRANKCASE
HEATER
TEMP.
SWITCH
GROUND
LUG
BLU
BLU
BLU
BLU
BLU
YEL
WHT
BRN
LT
. BL
U
YE
L
YE
L
YEL/BLK
YE
L
WHT/BLK
WHT/BLK
RED
ORN
WHT
WHT/BLK
YEL/BLK
WHT
YEL
ORN
RED
BLU
GRN
GRY
WHT
BLU
LT
. BL
U
BRN BL
U
BL
U
BL
U
WHT
RED
RED/WHT
PUR/WHT
BLU/WHT
GRN
YEL/BLK
YEL
WHT
ORN
GRY
BLU
WHT
YEL/BLK
Demand Defrost Control Fault Codes
LAMP OFF
STEADY RED
SLOW RED
RAPID RED
2 RED
3 RED
4 RED
5 RED
6 RED
7 RED
8 RED
9 RED
10 RED
No Power to control
Compressor operation active - Compressor
contactor energized.
Control normal operation - No call for compressor.
Control normal operation - ASCD (Anti Short Cycle
Delay) active
High Pressure Switch fault (Not yet in lockout)
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
Flashes Fault
Condition
Blower Control Fault Codes
LAMP OFF
LAMP ON
SLOW RED
RAPID RED
7 RED
8 RED
9 RED
No Power to control
Internal control failure
Control normal operation
Test Mode
Call for heat and cool at the same time
Model ID plug not inserted
Internal fault self corrected, attempting normal
operation
Flashes Fault
Condition
1.
ALL FIELD WIRING TO BE ACCOMPLISHED FOLLOWING
CITY, LOCAL, AND/OR NATIONAL CODES IN EFFECT AT
THE TIME OF UNIT INSTALLATION.
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 UNIT MUST BE REMOVED, IT
MUST BE REPLACED WITH TYPE 105 C 600 VOLT WIRE OR
EQUIVALENT AND CLEARLY RENUMBERED FOR IDENTIFICATION.
VERIFY PROPER OPERATION AFTER SERVICING.
3.
FACTORY WIRED FOR 230 VOLT 3 PHASE SUPPLY POWER. FOR
208 VOLT 3 PHASE SUPPLY POWER, MOVE BLACK WIRES FROM
THE 230 VOLT TAP TO THE 208 VOLT TAP ON THE TRANSFORMER.
4.
MOTORS ARE INHERENTLY PROTECTED.
5.
SEE UNIT NAMEPLATE FOR MAXIMUM FUSE AND/OR CIRCUIT
BREAKER SIZE AND MINIMUM CIRCUIT AMPACITY.
Notes:
3
P
2
P
C
R
O
Y1
Y2
W1 OUT
W2 OUT
Y1 OUT
Y2 OUT
LCS OUT
LCS IN
HPS OUT
HPS IN
RV
RV
G
C
M
M2
COIL
COILG
AMBG
AMB
2 STAGE DEMAND DEFROST
CONTROL
XFMR
F
C
1
230V
24V SEC
75VA
COM
208V
L3
L1
3
L2
1
CONT. COIL
COMPRESSOR
2ND STAGE
SOLENOID
2 STG BLOWER
CONTROL
MODEL
ID
PLUG
C
HUM
O
W1
W2
Y1
Y/Y2
G
R
PWM COM
PWM ENA
PWM
HT1
HT2
HT
COM
C
24 V
AC
3A FUSE
HI
PRES.
COIL
SENSOR
AMBIENT
SENSOR
LOSS OF
CHARGE
REV.
VALVE
T
T
T-STAT
LOW
VOLTAGE
BOX
C
R
O
Y1
Y2
W1
W2
G
HUM
6
5
4
3
2
1
ID MOTOR
1
T3
NOTICE
THIS UNIT IS WIRED
FOR THREE-PHASE POWER.
DO NOT CONNECT TO
A SINGLE PHASE SUPPLY
2 STAGE HEAT PUMP WITH OR WITHOUT
ELECTRIC HEAT - 208/230-3-60
LADDER WIRING DIAGRAM
CAUTION
!
OPEN ALL DISCONNECTS
BEFORE SERVICING THIS UNIT.
FIELD INSTALLED CONTROL
FIELD INSTALLED POWER
24V LOW VOLTAGE
208/230V LINE VOLTAGE
5291017-UWD-A-0916
WIRING DIAGRAM FOR
HEATER KIT:
6HK06501825
SEE HEATER WIRING DIAGRAM FOR ALTERNATE
HEATER ACCESSORY KITS.
OPTIONAL ELECTRIC
HEATER ACCESSORY
L2
L3
HE6
HE5
HE4
HE3
HE2
FL
FL
FL
FL
FL
L1
GND
1
2
3
4
5
6
RLY 4
RLY 5
RLY 6
RLY 1
RLY 2
RLY 3
HE1
FL
LS
LS
WHT
RED/WHT
BRN
BLU
BLU
BLU
BLU
BLU
BLU
YEL
YEL
YEL
YEL
BLK
BLK
BLK
BLK
YEL
BLK
BLK
BLU
YE
L
BLK
YEL
BLU
BLU
YEL
BLK
BLU
WHT
WHT
WHT
WHT
BL
U
BL
U
BL
U
BL
U
BLU
BLK
BLK
PUR
