Carrier A170203A - 8 Wiring Diagrams

80
8. Wiring Diagrams
A160107
Universal Four-Wire Connection
A
B
C
D
A
B
C
D
User Interface
Green - Data A
Yellow - Data B
White - COM
Red - 24VAC
OAT
Optional Remote
Room Sensor
HUM
COM
24V
Humidifier
Connection
S2
S1
A
B
C
D
ABCD
Connections
Communicating
AC, HP or GHP*
Green
Yellow
White
Red
OAT
Sensor
(Optional)
Variable-Speed
Furnace/ Fan Coil
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