Wiring Diagram
25HNB9
Infinity
r
19 2---Stage Heat Pump
with Puron
r
Refrigerant
2 to 5 Nominal Tons
338865-101 REV. A
1. Compressor furnished with inherent thermal protection.
2. To be wired in accordance with National Electric Code (N.E.C.) and local codes.
3. Outdoor unit control requires a minimum of 27 va, 24 vac control power.
4. Use copper conductors only. Use conductors suitable for at least 70ºC (167ºF).
5. If indoor section has a transformer with a grounded secondary, connect the grounded side to “C”.
6. If any of the original wire, as supplied, must be replaced, use the same or equivalent wire.
7. Check all electrical connections inside control box for tightness.
8. Do not attempt to operate unit until service valves have been opened (Back Seated).
9.
MUST USE THERMOSTAT OR USER INTERFACE LISTED IN PRE-SALE LITERATURE ONLY
.
10. In case of non-communicating indoor system disconnect factory provided wires from A, B, C, and D
terminals. Use factory provided wires to connect to R, C, W1, Y1, Y2, and O as required by
installation instructions. Cap or remove unused factory provided wires.
11. For communicating control only.
CAP
CB
CCH
CHS
COMM
COMP
CONT
CAPACITOR
CONTROL BOARD
CRANKCASE HEATER
CRANKCASE HEATER SWITCH
SYSTEM COMMUNICATION
COMPRESSOR
CONTACTOR
NOTES:
SCHEMATIC DIAGRAM (LADDER FORM)
* MAY BE FIELD INSTALLED
LEGEND
FACTORY POWER WIRING
FACTORY CONTROL WIRING
FIELD CONTROL WIRING
FIELD POWER WIRING
COMPONENT CONNECTION
FIELD SPLICE
JUNCTION
CONNECTION
DIAGRAM
CS
DTS
HPS
LPS
* LS
OAT
OCT
OFM
RVS
SC
SEV
SR
STATUS
TRAN
* UC
COMP HIGH CAP SOLENOID
DISCHARGE TEMP SWITCH
HIGH PRESSURE SWITCH
LOW PRESSURE SWITCH
LIQUID SOLENOID
THERMISTOR (OUTDOOR AIR)
THERMISTOR COIL
OUTDOOR FAN MOTOR
REVERSING VALVE SOLENOID
START CAPACITOR
SOLENOID EXPANSION VALVE
START RELAY
SYSTEM FUNCTION LIGHT
TRANSFORMER
UTILITY CURTAILMENT
CONTROL
BOARD
CAP
ACIT
OR
CONT
TRAN
MODEL
MODEL
PLUG
HK70EZ
SIZE
MODEL PLUG CHART
1 - 4 (R1)
2 - 3 (R2)
PIN RESISTANCE (K )
036
048
12
14
5.1
5.1
180
270
060
16
11
5.1
YEL
UNIT OPERATION
TRAN 24V
TRAN 24V
CS
BLU
RED
RED
BRN
CCH
BLK
BLK
YEL
COM
230V
BLK
208V
BLK
*SR
BRN
BLU
*SC
YEL
CAP
CHS
BLK
2 1
5
BLK
VIO
BLK
YEL
RED/WHT
YEL
YEL
BRN
BLU
208/230 1Ø
POWER
SUPPLY
L1
11
EQUIP GND
L2
21
23 23
C C
BRN/YEL
CONT
YEL/PNK
YEL/PNK
LPS
BLU/PNK
BLU/PNK
HPS
RED
RED
DTS
RED
BRN
BRN/YEL
RED/WHT
BLU
T1
C
LO
HI
*UC (WITH INFINITY/EVOLUTION ONLY)
CONNECT TO
R AND Y2 ON
CONTROL BOARD
TO INDOOR UNIT
COMM STATUS
LED
LED
PL5
PL7
PL4
PL3
PL2
SR
YEL
BRN
BLU
L2
VR
VS
2
1
2
1
3
1
4
3
2
1
R C
Y1
W1
Y2 O
QUIET
SHIFT
OFF
(DEFAULT)
3
2
1
OAT
PL6
OCT
ON
P8
FORCED
DEFROST
MODEL PLUG
4
5
2
1
4
3
2
1
C
RVS
SEV
DEFROST
TIME
CB
TIME
(MIN)
VIO
BLK
C
PL1 BLU
30
90
60
60
120
30
RED
CCH
ODF
L1
YEL
PWM1
PWM2
RVS
ORG
ORG
BRN
BRN
OCT
BLK
OAT
BLK
*LS
BLK
YEL
BLU
BLK
OFM
GRN/YEL
BLU
COMP
RVS
OCT
OAT
*LS
QUIET
SHIFT
OFF
(DEFAULT)
OAT
OCT
ON
P8
FORCED
DEFROST
MODEL PLUG
C
RVS
SEV
DEFROST
TIME
CB
TIME
(MIN)
C
PL1
PWM1
PWM2
PL6
4
5
2
1
4
3
2
1
3
2
1
30
90
60
60
120
30
COMM STATUS
LED
LED
PL5
PL4
PL3
PL2
SR
2
1
2
1
3
1
4
3
2
1
TO INDOOR UNIT
LPS
HPS
DTS
CONT
CS
T1
C
LO
HI
VR
CCH
ODF
L1
VS
L2
L1
CCH
*SR
*SC
COMP CAP
CHS
2 1
5
11
EQUIP
GND
21
23
23
OFM
CONT
L2
CONT
C
TRAN 230V
230V
COMP
Field initiated forced defrost
- (shown as forced defrost on board) by placing a jumper
across the forced defrost terminals for 5 seconds, or longer, and then removing the
jumper the unit will initate a defrost cycle regardless of coil temperature the defrost
cycle will terminate at 65ºF (+/-5º) if coil termperature is above 32ºF or outdoor ambient
temperature is above 50ºF, defrost mode will terminate after 30 seconds of active mode.
This control board contains a five minute short cycle protector. A five minute delay will
occur between compressor off/on cycles. To bypass delay, short forced defrost pins
for 1 second then release. The crankcase heater is energized during off cycle below 65ºF.
Defrost time selection
- (shown as DT on board) the defrost interval time can be field
selected, dependent upon local georgraphic requirements. It is factory set at 90 minutes
and can be changed to either 30, 60 or 120 minutes.
Defrost
- defrost will only be performed at outdoor temperatures less than 50ºF defrost
will initiate when time selected has elapsed and the coil temperature is less than 32ºF
(+/-2º) And will terminate at 65ºF (+/-5º) upon defrost termination the outdoor fan will delay
20 Seconds before starting.
BLU
YEL
BLK
FLASH
CODE
FAULT DEFINITION
FLASH
CODE
FAULT DEFINITION
On, No Flash Standby
1, Pause
Low Stage
2, Pause
High Stage
16
25
Invalid Model Plug
31
High Pressure Switch Trip or
Disch Temp Switch Trip
45
Control Fault
46
Brown out (230V)
47
No 230v with call to run
53
Outdoor Air Temp Sensor
72
High Stage Thermal Cutout
73
Contactor Shorted
System Communications Failure
32
Low Pressure Switch Trip
71
Low Stage Thermal Cutout
74
Contactor Open (No 230v to Comp)
55
Coil Temp Sensor
56
Temp Sensor Range Error
81
Low Stage thermal lockout (4 HRS)
82
High Stage thermal lockout (4 HRS)
83
Low pressure lockout (4 HRS)
84
High pressure lockout (4 HRS)
Short flashes indicate the first digit in the status code, followed by long flashes indicating the second digit of
the status code.
3, Pause
ODU Fan Delay Defeat Not Active
4, Pause
5, Pause
6, Pause
ODU Fan Delay Defeat Active
Brown Out is Disabled
Brown Out is Active
OPTIONAL
NON-COMMUNICATING
CONTROL
SEE NOTE #10
R C W1 Y1 Y2 O
AS PROVIDED
BY MANUFACTURER
SEE NOTE #11
A B C D
GRN
YEL
WHT
RED
PL7
R C
Y1
W1
Y2 O
AS PROVIDED
BY MANUFACTURER
SEE NOTE #11
A B C D
GRN
YEL
WHT
RED
OPTIONAL
NON-COMMUNICATING
CONTROL
SEE NOTE #10
R C W1 Y1 Y2 O
024
10
5.1
120
Fig. 1 – Wiring Diagram — Model sizes 2 -- 5 tons, 208/230--1
