Fig. 5—Typical 24-v Circuit Connections (Continued)
A97049
R
W
Y
G
R
C
NON-CORPORATE
NON-PROGRAMMABLE
THERMOSTAT
MODEL AC
FK4C
FAN
COIL
SEE
NOTE 2
AIR
CONDITIONER
W2
G
W3
O
Y1
E
L
Y/Y2
24 VAC HOT
HEAT STAGE 1
COOL STAGE 1
INDOOR FAN
C
A97047
R
C
W/W1
Y/Y2
G
R
C
CORPORATE
NON-PROGRAMMABLE
THERMOSTAT
MODEL AC
FK4C
FAN
COIL
SEE
NOTE 2
AIR
CONDITIONER
W2
G
W3
O
Y1
E
L
Y/Y2
24 VAC HOT
24 VAC COM
HEAT STAGE 1
COOL STAGE 1
INDOOR FAN
C
A97048
R
G
W/W1
Y/Y2
0/W2
R
G
CORPORATE
PROGRAMMABLE
THERMOSTAT
MODEL AC
FK4C
FAN
COIL
SEE
NOTE 2
AIR
CONDITIONER
W2
O
Y1
W3
C
E
L
Y/Y2
24 VAC HOT
INDOOR FAN
HEAT STAGE 1
COOL STAGE 1
NOT USED
Y1/W2
NOT USED
C
B
L
S1
24 VAC COM
NOT USED
NOT USED
OPTIONAL
OUTDOOR
SENSOR
CONNTECTION
S2
C
6
