Carrier Infinity Series Wiring Diagrams

25HNA6
Infinityt Series Heat Pump
with Puronr Refrigerant
2 To 5 Nominal Tons
VIO
CL
BLU
SR
11 21
GRY
GRY
C C
BLK
BRN/YEL
CH
L1
BRN
208/230 1Ø
11 21
L2
POWER
23 23
SUPPLY
RED
C C
EQUIP GND
RED/WHT YEL
BRN/YEL
YEL/BLU
VS
BLU
YEL/PNK
2
YEL/PNK 1
LPS
PL2
BLU/PNK
2
1
BLU/PNK
HPS
PL3
GRY 3
SR
GRY 1
PL4
LED
T1
4
BRN/YEL C
3
YEL/BLU LO
2
RED/WHT 1
HI
COMM STATUS
PL5
* UC (WITH INFINITY/EVOLUTION ONLY)
PL7
CONNECT TO
R AND Y2 ON
A B C D R
CONTROL BOARD
TO INDOOR UNIT
-LEGEND-
FACTORY POWER WIRING CB
CCH
FIELD POWER WIRING
CH
FACTORY CONTROL WIRING
CL
FIELD CONTROL WIRING
COMM
COMPONENT CONNECTION
COMP
JUNCTION
HPS
LPS
FIELD SPLICE
LS
CAPACITOR
CAP
* MAY BE FIELD INSTALLED
FLASH FAULT DEFINITION
CODE
On, No Flash Standby
1, Pause Low Stage
2, Pause High Stage
System Communications Failure
16
25 Invalid Model Plug
31 High Pressure Switch Trip
32 Low Pressure Switch Trip
45 Control Fault
46 Brown out (230V)
47 No 230v with call to run
53 Outdoor Air Temp Sensor
55 Coil Temp Sensor
56 Temp Sensor Range Error
Wiring Diagrams
CONNECTION
BLU
DIAGRAM
6
BLU
8
YEL
COMP
2 S
C
4
COMP
BLU R
CAP
YEL
SC
YEL
BLK
BRN
OFM
BRN
CCH FAN
CAP
BRN YEL
BLK
RED
YEL
ODF
L2 L1 CCH
VR
YEL
VIO BLK RED PWM1
BRN YEL
PWM2
BLU
PL1
CB
C 1
RVS 2
3
SEV
TIME
DEFROST
4
C
(MIN)
TIME
1
LED
2
OCT
3
4
ON
OFF OAT
(DEFAULT) QUIET 5
SHIFT
PL6
FORCED
DEFROST P8
W1 O
Y1 Y2
C
MODEL PLUG
CONTROL BOARD
OAT
CRANKCASE HEATER OCT
CONTACTOR HIGH CAPACITY
OFM
CONTACTOR LOW CAPACITY RVS
SYSTEM COMMUNICATION SC
COMPRESSOR
SEV
HIGH PRESSURE SWITCH SR
LOW PRESSURE SWITCH
STATUS SYSTEM FUNCTION LIGHT
LIQUID SOLENOID
* UC
*
FLASH FAULT DEFINITION
CODE
71 Low Stage Thermal Cutout
72 High Stage Thermal Cutout
73 Contactor Shorted
75 Low Stage didn't start
76 Low Stage didn't start 3 times
77 High Stage didn't start
78 High Stage didn't start 3 times
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)
85 Low contactor open
87 High contactor open
Fig. 1 – Wiring Diagram — Model sizes 2- -4 tons, 208/230- -1
SCHEMATIC
L1
DIAGRAM
(LADDER FORM)
COMPONENT ARRANGEMENT
FAN COMP
CAP CAP
EQUIP
GND
SR SC
CL
CONTROL
CH
BOARD
MODEL PLUG CHART
MODEL MODEL
PIN RESISTANCE (K )
SIZE PLUG
1 - 4 (R1) 2 - 3 (R2)
HK70EZ
024 002 5. 1 18
5. 1
036 004 33
006 5. 1 51
048
LPS
HPS
RVS
ORG
SR
ORG
T1
OCT
C
LO
BRN
CL
HI
CH
BRN
BLK
BLK
OAT
NOTES:
1. COMPRESSOR FURNISHED WITH INHERENT THERMAL PROTECTION.
*LS
2. FAN MOTOR FURNISHED WITH INHERENT THERMAL PROTECTION.
3. TO BE WIRED IN ACCORDANCE WITH NATIONAL ELECTRIC CODE (N.E.C.) AND LOCAL CODES.
4. OUTDOOR UNIT CONTROL REQUIRES A MINIMUM OF 27 VA, 24 VAC CONTROL POWER.
5. USE COPPER CONDUCTORS ONLY. USE CONDUCTORS SUITABLE FOR AT LEAST 70ºC (167ºF).
THERMISTOR (OUTDOOR AIR)
6. IF INDOOR SECTION HAS A TRANSFORMER WITH A GROUNDED SECONDARY, CONNECT THE
THERMISTOR COIL
GROUNDED SIDE TO "C".
OUTDOOR FAN MOTOR 7. IF ANY OF THE ORIGINAL WIRE, AS SUPPLIED, MUST BE REPLACED, USE THE SAME OR EQUIVALENT WIRE.
8. CHECK ALL ELECTRICAL CONNECTIONS INSIDE CONTROL BOX FOR TIGHTNESS.
REVERSING VALVE SOLENOID
9. DO NOT ATTEMPT TO OPERATE UNIT UNTIL SERVICE VALVES HAVE BEEN OPENED (BACK SEATED).
START CAPACITOR
10. MUST USE THERMOSTAT LISTED IN PRE-SALE LITERATURE.
SOLENOID EXPANSION VALVE
11. COMPRESSOR WINDINGS SHOWN FOR 2 CYLINDER OPERATION. FOR 1 CYLINDER OPERATION
START RELAY
REVERSE R AND S MARKINGS.
UTILITY CURTAILMENT
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.
SHORT FLASHES
1 MINUTE TIME DELAY - WHEN CHANGING FROM LOW TO HIGH OR HIGH TO LOW. THERE IS A 1 MINUTE
TIME DELAY DURING CAPACITY CHANGE, THE OUTDOOR FAN WILL REMAIN RUNNING.
INDICATE THE FIRST
CRANKCASE HEATER - OPERATES DURING OFF CYCLE.
DIGIT IN THE STATUS
DEFROST TIME SELECTION - (SHOWN AS DT ON BOARD) THE DEFROST INTERVAL TIME CAN BE FIELD
CODE, FOLLOWED BY
SELECTED, DEPENDENT UPON LOCAL GEORGRAPHIC REQUIREMENTS. IT IS FACTORY SET AT 90 MINUTES
LONG FLASHES AND CAN BE CHANGED TO EITHER 30, 60 OR 120 MINUTES.
INDICATING THE
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)
SECOND DIGIT OF
AND WILL TERMINATE AT 65ºF (+/-5º) UPON DEFROST TERMINATION THE OUTDOOR FAN WILL DELAY 20
SECONDS BEFORE STARTING.
THE STATUS CODE.
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
332243-101 REV. D
TEMPERATURE IS ABOVE 50ºF, DEFROST MODE WILL TERMINATE AFTER 30 SECONDS OF ACTIVE MODE.
C L
21
11
SR 6
COMP
CAP
8
2
4
SC
CH
11 21
ODF
VS L2 L1
VR
BLU VIO BLK
BRN YEL
2
CLU
1
PL2
CB
2
1
PL3
TIME
DEFROST
3
(MIN)
TIME
1
PL4
LED
LED
4
3
2
ON
OFF
1
(DEFAULT) QUIET
COMM STATUS
SHIFT
PL5
PL7
FORCED
DEFROST
A B C D R
O
W1 Y1 Y2
C
TO INDOOR UNIT
UNIT OPERATION
L2
COMP
S
CH
C
R
23 23
FAN
CAP
OFM
CCH
CCH
YEL
RED PWM1
PWM2
RVS
BLU
PL1
C
1
RVS 2
3
SEV
4
C
OCT
1
2
OCT
3
OAT
4
OAT
5
PL6
*LS
P8
MODEL PLUG