Carrier A170203 - Page 107

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A
B
C
D
A
B
C
D
C
Y
ABCD
Connection
User Interface
1-Spd.
Non-Communicating
AC
Green - Data A
Yellow - Data B
White - COM
Red - 24VAC
Optional Remote
Room Sensor
HUM
COM
24V
Humidifier
Connection
Y/Y2
S2
S1
OAT
OAT
Sensor
Variable-Speed
Furnace/Fan Coil
A12354
Connection Diagram for Furnace or FE Fan Coil with
1--Stage Air Conditioning