24 VAC HOT
24 VAC COM
R
C
G
W/W1
Y/Y2
R
C
C
CARRIER
NON-PROGRAMMABLE
THERMOSTAT
MODEL AC
SINGLE-STAGE
FURNACE
AIR
CONDITIONER
SEE
NOTE 2
Y
G
W
HEAT STAGE 1
COOL STAGE 1
INDOOR FAN
A97467
24 VAC HOT
R
G
W/W1
Y/Y2
O/W2
R
W
Y
C
B
S1
S2
CARRIER
PROGRAMMABLE
THERMOSTAT
MODEL AC
SINGLE-STAGE
FURNACE
AIR
CONDITIONER
G
Y1/W2
L
INDOOR FAN
HEAT STAGE 1
COOL STAGE 1
NOT USED
24 VAC COM
NOT USED
NOT USED
NOT USED
OPTIONAL
OUTDOOR
SENSOR
CONNECTION
C
C
SEE
NOTE 2
A97469
24 VAC HOT
R
W
Y
G
R
W
Y
OTHER
NON-PROGRAMMABLE
AC THERMOSTAT
SINGLE-STAGE
FURNACE
AIR
CONDITIONER
C
INDOOR FAN
HEAT STAGE 1
COOL STAGE 1
C
SEE
NOTE 2
G
A97367
24 VAC HOT
24 VAC COM
R
C
G
W/W1
Y/Y2
R
C
C
CARRIER
NON-PROGRAMMABLE
THERMOSTAT
MODEL AC
FA, FB, FC,
FD, FF, FX
FAN COIL
AIR
CONDITIONER
SEE
NOTE 2
G
W2
HEAT STAGE 1
COOL STAGE 1
INDOOR FAN
A97594
24 VAC HOT
R
G
W/W1
Y/Y2
O/W2
R
W2
C
B
S1
S2
CARRIER
PROGRAMMABLE
THERMOSTAT
MODEL AC
FA, FB, FC,
FD, FF, FX
FAN COIL
AIR
CONDITIONER
G
Y1/W2
L
INDOOR FAN
HEAT STAGE 1
COOL STAGE 1
NOT USED
24 VAC COM
NOT USED
NOT USED
NOT USED
OPTIONAL
OUTDOOR
SENSOR
CONNECTION
C
C
SEE
NOTE 2
A97595
24 VAC HOT
R
G
W
Y
R
C
C
OTHER
NON-PROGRAMMABLE
AC THERMOSTAT
FA, FB, FC,
FD, FF, FX
FAN COIL
AIR
CONDITIONER
SEE
NOTE 2
G
W2
HEAT STAGE 1
COOL STAGE 1
INDOOR FAN
A97593
Fig. 11—Typical 24v Circuit Connections
10