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COMP
CONNECTION DIAGRAM
YEL
M
21
208/230 1Ø
POWER
SUPPLY
CHOKE
CHOKE
CONT
23
YEL
23
BLK
BRN
C C
EQUIP GND
INVERTER
GRN
BLK
11 21
L2
S
M
5
EXV
L1
COMP
BLK
11
T2
CONT
EQUIP
GND
CONTROL
BOARD
C
TRAN
CONT
5
T3
RED
BLK
23
CHOKE
INVERTER
YEL
23
L1
INVERTER
WHT
RED
GRN
CHOKE
YEL
230V 208V COM
BLK
COMPONENT ARRANGEMENT
CONT
T1
RED
CHOKE
WHT
C
T3
S
RED
BLK
TRAN 24V
T2
T1
RED
BRN
L2
SCHEMATIC DIAGRAM (LADDER FORM)
BLK
OFM
MODEL PLUG CHART
MODEL MODEL PIN RESISTANCE (K )
PLUG
SIZE
HK70EZ 1 - 4 (R1) 2 - 3 (R2)
5.1
11
001
24
5.1
002
18
36
5.1
003
24
48
5.1
004
33
60
230V
C
TRAN 24V
OFM
EXV
1
YEL
PL5
BLU
GRN/YEL
RED/WHT
BRN/YEL
TRAN
SEC1 SEC2
EXV
PWM2
PWM1
CC
PL5
1
BRN
RED
5
PL3
PWM2
HPS
PWM1
RVS
PL4
PL3
SPT
HPS
PL2
ORG
RVS
PL11
CB
OST
RED
BLK
WHT
GRN
PL1
5
PL1
BLK
RVS
BLK
PL6
INVERTER
BARE
RVS
OST
ORG
OCT
OAT
A B C NO
USE
J2
FORCED
DEFROST
PL8
MODEL
OAT
UTIL C LS Y O
CONT
BLK
OAT
1.
2.
3.
4.
LS
UNIT OPERATION
MODEL
J2
FORCED
DEFROST
LS
Compressor Furnished With Inherent Thermal Protection.
To Be Wired In Accordance With National Electric Code (N.E.C.) And Local Codes.
Use Copper Conductors Only. Use Conductors Suitable For At Least 70ºC (167ºF).
Two Wire A and B Required For Communication. Unit Contains 24 Volt Transformer To Power Control
Board. If Outdoor Unit Improperly Grounded, Connect Indoor Ground To “C” Terminal.
If Any Of The Original Wire, As Supplied, Must Be Replaced, Use The Same Or Equivalent Wire.
Check All Electrical Connections Inside Control Box For Tightness.
Do Not Attempt To Operate Unit Until Service Valves Have Been Opened.
Must Use With Infinity User Interface Listed In Pre-sale Literature Only.
HIGH PRESSURE SWITCH
INVERTER DRIVE
LIQUID LINE SOLENOID
THERMISTOR (OUTDOOR AIR)
THERMISTOR (COIL)
OUTDOOR FAN MOTOR
THERMISTOR (SUCTION)
HPS
INVERTER
LS
OAT
OCT
OFM
OST
Furnace or Fan Coil
VS HP
No
Use
D
D
C
C
B
B
B
A
A
A
C
HUM
C
W
O
Y
R
OAT
C and D
not required on
VS Heat Pump
A12055
Fig. 5 – Infinity Furnace or Fan Coil Wiring with
Communicating Variable Speed HP
7
RVS
SPT
STATUS
TRAN
UTIL
REVERSING VALVE SOLENOID
SUCTION PRESSURE
TRANSDUCER
SYSTEM FUNCTION LIGHT
TRANSFORMER
UTILITY CURTAILMENT
338633-101 REV. A
Fig. 4 – Wiring Diagram — 25VNA Model sizes 2 -- 5 tons, 208/230--1
24vac C
OAT
NOTES:
This Control Board Contains A Five Minute Short Cycle Protector. A Five Minute Delay Will Occur Between Compressor Off/on
-LEGENDCycles. To Bypass Delay, Short Forced Defrost Pins For 1 Second Then Release. The Crankcase Heater Is Energized During
Off Cycle Below 75ºF As Needed.
FACTORY POWER WIRING
FIELD POWER WIRING
DEFROST TIME SELECTION - The Defrost Interval Time Can Be Field Selected, Dependent Upon Local Georgraphic
FACTORY CONTROL WIRING
Requirements. It Is Factory Set At 90 Minutes And Can Be Changed To Either 30, 60 Or 120 Minutes Via The User Interface.
FIELD CONTROL WIRING
User Interface Defaults to “AUTO”.
COMPONENT CONNECTION
DEFROST - Defrost Will Only Be Performed At Outdoor Temperatures Less Than 50ºF. Defrost Will Initiate When Time
JUNCTION
Selected Has Elapsed And The Coil Temperature Is Less Than 32ºF (+/-2ºF). It Will Terminate At 65ºF, 50ºF, or 45ºF (+/-5ºF),
FIELD SPLICE
As Needed Based On OAT. At Defrost Termination The Outdoor Fan Will Turn On 15 Seconds Before Switching The
CONTROL BOARD
CB
Reversing Valve..
CONTACTOR COIL
CC
FIELD INITIATED FORCED DEFROST - (Shown As Forced Defrost On Board) By Placing A Jumper Across The Forced Defrost
COMM SYSTEM COMMUNICATION
Terminals For 5 Seconds, Or Longer, And Then Removing The Jumper The Unit Will Initate A Defrost Cycle Regardless Of Coil
COMP COMPRESSOR
Temperature. The Defrost Cycle Will Terminate At 65ºF (+/-5ºF) If Coil Termperature Is Above 32ºF Or Outdoor Ambient
CONT CONTACTOR
ELECTRONIC EXPANSION VALVE
Temperature Is Above 50ºF, Defrost Mode Will Terminate After 30 Seconds Of Active Mode.
EXV
Humidifier
PL8
A BC NO
USE
BLK
5.
6.
7.
8.
User Interface (UI)
OCT
COMM STATUS
COMM STATUS
UTIL C LS Y O
PL6
OCT
CHOKE
OCT
BRN
BRN
CHOKE
OST
OST
SPT
INVERTER
BLU/PNK
BLU/PNK
RED
+
WHT
BLK
PL11
PL2
SPT
+
-
SPT
HPS
CC
HPS
PL4
CB
YEL
BLU
EXV
SEC1 SEC2