Carrier AC - Wiring Diagrams (HP & AC Models)

→Fig. 10—Two-Speed Air Conditioner
with Typical Fan Coil
A97128
24 VAC HOT


24 VAC COMM


HEAT STAGE 1


COOL STAGE 2


FAN
R
C
G
W/W1
Y/Y2
R
C
HEAT STAGE 2


COOL STAGE 1


N/A


OUTDOOR

SENSOR

CONNECTION
Y1
B
S1
S2
O
C
Y1
MODEL 2S
THERMOSTAT
TYPICAL
FAN COIL
TWO-SPEED
AIR CONDITIONER
See notes 2, 3, 4, 5, and 10
Y/Y2
G
O/W2
*
*
W2
R
Y2
Y1
E
L
*
*
W3
L
→Fig. 11—Two-Speed Heat Pump
with Single-Stage Furnace
A97129
24 VAC HOT


24 VAC COMM


HEAT STAGE 3


COOL/HEAT
STAGE 2

FAN
R
C
G
W/W1
Y/Y2
R
C
RVS COOLING


COOL/HEAT
STAGE 1


RVS HEATING


OUTDOOR

SENSOR

CONNECTION
Y1
B
S1
S2
C
MODEL 2S
THERMOSTAT
SINGLE-STAGE
FURNACE
TWO-SPEED
HEAT PUMP
See note 4, 6, 7, and 9
G
O/W2
W
R
Y
Y2
L
Y1
O
W2
W3
A97130
→Fig. 12—Two-Speed Heat Pump
with 2-Stage or Variable-Speed Furnace
24 VAC HOT


24 VAC COMM


HEAT STAGE 3


COOL/HEAT
STAGE 2

FAN
R
C
G
W/W1
Y/Y2
R
C
RVS COOLING


COOL/HEAT
STAGE 1


RVS HEATING


OUTDOOR

SENSOR

CONNECTION
Y1
B
S1
S2
C
MODEL 2S
THERMOSTAT
TWO-STAGE OR
VARIABLE-SPEED
FURNACE
TWO-SPEED
HEAT PUMP
See notes 1, 4, 5, 6, 7, and 9
G
O/W2
R
Y2
L
Y1
O
W2
W3
W2
O
Y1
W/W1
Y/Y2
*
*
A97131
→Fig. 13—Two-Speed Heat Pump
with Typical Fan Coil
24 VAC HOT


24 VAC COMM


HEAT STAGE 3


COOL/HEAT
STAGE 2

FAN
R
C
G
W/W1
Y/Y2
R
C
RVS COOLING


COOL/HEAT
STAGE 1

RVS HEATING


OUTDOOR

SENSOR

CONNECTION
Y1
B
S1
S2
W3
C
Y1
MODEL 2S
THERMOSTAT
TYPICAL
FAN COIL
TWO-SPEED
HEAT PUMP
See notes 4, 5, 6, 7, 9, and 10
Y/Y2
G
O/W2
*
W2
R
Y2
Y1
E
L
*
*
O
L
*
W3
O
W2
6