Fig. 5—typical 24v circuit connections (continued) – Carrier 38BRC User Manual
Page 6
Fig. 5—Typical 24v Circuit Connections (Continued)
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24 VAC HOT
R
G
W/W1
Y/ Y2
O/W2
R
DH
W1
W2
Y/ Y2
C
B
S1
S2
CARRIER
PROGRAMMABLE
THERMOSTAT
MODEL AC
FK4C
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
Y1
O
C
J2 JUMPER
J1 JUMPER
24 VAC HOT
R
C
W/W1
Y/Y2
G
R
DH
W2
W1
Y/Y2
CARRIER
NON-PROGRAMMABLE
THERMOSTAT
MODEL AC
FK4C
FAN COIL
AIR
CONDITIONER
C
INDOOR FAN
HEAT STAGE 1
COOL STAGE 1
24 VAC COM
Y1
C
G
O
J2 JUMPER
J1 JUMPER
24 VAC HOT
R
W
Y
G
R
DH
W1
W2
Y/Y2
OTHER
NON-PROGRAMMABLE
AC THERMOSTAT
FK4C
FAN COIL
AIR
CONDITIONER
C
INDOOR FAN
HEAT STAGE 1
COOL STAGE 1
Y1
C
G
O
J1 JUMPER
J2
JUMPER
6