Carrier 38CMC Installation And Start-Up Instructions Manual page 7

CARRIER
NON-PROGRAMMABLE
SINGLE-STAGE
THERMOSTAT
FURNACE
MODEL AC
24 VAC HOT
R
C
24 VAC COM
W/W1
HEAT STAGE 1
Y/Y2
COOL STAGE 1
G
INDOOR FAN
CARRIER
PROGRAMMABLE
THERMOSTAT SINGLE-STAGE
FURNACE
MODEL AC
R R
24 VAC HOT
G G
INDOOR FAN
W/W1
HEAT STAGE 1 W
Y/Y2 Y
COOL STAGE 1
O/W2
NOT USED
Y1/W2
NOT USED
C
24 VAC COM C
B
NOT USED
L
NOT USED
S1
OPTIONAL
OUTDOOR
SENSOR
S2
CONNECTION
OTHER
NON-PROGRAMMABLE SINGLE-STAGE
AC THERMOSTAT FURNACE
24 VAC HOT R R
C
HEAT STAGE 1 W W
Y
Y
COOL STAGE 1
G G
INDOOR FAN
AIR
CONDITIONER
R
C
SEE
C
W
NOTE 2
Y
G
A97467
AIR
CONDITIONER
SEE
C
NOTE 2
A97469
AIR
CONDITIONER
SEE
C
NOTE 2
A97367
Fig. 5—Typical 24-v Circuit Connections
CARRIER
NON-PROGRAMMABLE
THERMOSTAT
MODEL AC
24 VAC HOT
R
24 VAC COM C
HEAT STAGE 1 W/W1
COOL STAGE 1 Y/Y2
G
INDOOR FAN
CARRIER
PROGRAMMABLE
THERMOSTAT
MODEL AC
24 VAC HOT R
G
INDOOR FAN
HEAT STAGE 1 W/W1
Y/Y2
COOL STAGE 1
O/W2
NOT USED
Y1/W2
NOT USED
C
24 VAC COM
B
NOT USED
L
NOT USED
S1
OPTIONAL
OUTDOOR
SENSOR
S2
CONNECTION
OTHER
NON-PROGRAMMABLE
AC THERMOSTAT
24 VAC HOT
R
HEAT STAGE 1 W
COOL STAGE 1
Y
INDOOR FAN
G
7
FA, FB, FC,
FD, FF AIR
FAN COIL CONDITIONER
R
C
SEE
C
NOTE 2
W2
G
A97468
FA, FB,
FC, FD, FF AIR
FAN COIL CONDITIONER
R
G
W2
SEE
C
NOTE 2
C
A97470
FA, FB, FC,
FD, FF AIR
FAN COIL CONDITIONER
R
C
SEE
C
NOTE 2
W2
G
A97366