Carrier AC - Page 5

→Fig. 6—Single-Speed Air Conditioner
with Typical Fan Coil
A97124
24 VAC HOT


24 VAC COMM


HEAT STAGE 1


COOL STAGE 1


FAN
R
C
G
W/W1
Y/Y2
R
C
HEAT STAGE 2


N/A


N/A


OUTDOOR

SENSOR

CONNECTION
Y1
B
S1
S2
C
Y
MODEL HP
THERMOSTAT
TYPICAL
FAN COIL
SINGLE-SPEED
AIR CONDITIONER
See notes 2, 3, 5, and 10
Y/Y2
G
O/W2
*
*
W2
Y1
O
L
E
*
*
W3
→Fig. 7—Single-Speed Heat Pump
with Typical Fan Coil
A97125
24 VAC HOT


24 VAC COMM


HEAT STAGE 2
R
C
G
W/W1
Y/Y2
R
C
RVS COOLING


N/A


RVS HEATING


OUTDOOR

SENSOR

CONNECTION
Y1
B
S1
S2
O
C
Y
MODEL HP
THERMOSTAT
TYPICAL
FAN COIL
SINGLE-SPEED
HEAT PUMP
See notes 5, 6, and 10
Y/Y2
G
O/W2
*
*
W2
R
W2
O
Y1
E
L
*
*
W3
COOL/ HEAT 
STAGE 1
FAN
→Fig. 8—Two-Speed Air Conditioner
with Single-Stage Furnace
A97126
24 VAC HOT


24 VAC COMM


HEAT STAGE 1


COOL STAGE 2


FAN
R
C
G
W/W1
Y/Y2
R
C
N/A


COOL STAGE 1


N/A


OUTDOOR

SENSOR

CONNECTION
Y1
B
S1
S2
C
MODEL 2S
THERMOSTAT
SINGLE-STAGE
FURNACE
TWO-SPEED
AIR CONDITIONER
See notes 2 and 4
G
O/W2
W
R
Y
Y2
L
Y1
→Fig. 9—Two-Speed Air Conditioner
with 2-Stage or Variable-Speed Furnace
A97127
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
C
MODEL 2S
THERMOSTAT
TWO-STAGE OR
VARIABLE-SPEED
FURNACE
TWO-SPEED
AIR CONDITIONER
See notes 2, 3, 4, and 5
G
O/W2
R
Y2
L
W/W1
Y/Y2
W2
Y1
Y1
*
5