Carrier 10 SEER SPLIT-SYSTEM 38YCW Installation And Start-Up Instructions Manual page 6

FA, FB, FC,
OTHER
FD, FF, FH
HP THERMOSTAT FAN COIL
W3
24 VAC HOT R
R
24 VAC COM C
C
HEAT STAGE 2
W2
W2
COOL/HEAT
Y
STAGE 1
E
INDOOR FAN G
G
RVS COOLING
O
EMERGENCY
E
HEAT
NOTE: Remove wires from crimp nut in indoor fan coil
when installing outdoor thermostat.
IMPORTANT: When using outdoor thermostat, W 2 must be
energized when requesting supplemental heat.
CARRIER
PROGRAMMABLE
40FKA
THERMOSTAT FK4C
MODEL HP FAN COIL
DH
R
24 VAC HOT
R
INDOOR FAN G
G
W/W1
HEAT STAGE 2
W1
COOL/HEAT
Y/Y2
STAGE 1
W2
O/W2
RVS COOLING
Y/Y2
O
NOT USED Y1/W2
24 VAC COM C C
NOT USED B Y1
TROUBLE L
S1
OPTIONAL
OUTDOOR
SENSOR
S2
CONNECTION
CARRIER
PROGRAMMABLE
FA, FB, FC, FD, FF, FH
THERMOSTAT
FAN COIL
MODEL HP
W3
24 VAC HOT R
R
G
INDOOR FAN
G
HEAT STAGE 2 W/W1
W2
COOL/HEAT
Y/Y2
STAGE 1
E
RVS COOLING O/W2
NOT USED Y1/W2
24 VAC COM C
C
B
NOT USED
L
TROUBLE
S1
OPTIONAL
OUTDOOR
SENSOR
S2
CONNECTION
NOTE: Remove wires from crimp nut in indoor fan coil
when installing outdoor thermostat.
IMPORTANT: When using outdoor thermostat, W 2 must be
energized when requesting supplemental heat.
ONE
HEAT
OUTDOOR
PUMP THERMOSTAT
ODT
R
C
W2
Y
O
HEAT
PUMP
J1 JUMPER
R
W2
J2 JUMPER
Y
O
C
ONE
OUTDOOR
HEAT
THERMOSTAT
PUMP
24 VAC HOT
R
INDOOR FAN
HEAT STAGE 2
ODT
W2
COOL/HEAT
STAGE 1
RVS COOLING
Y
NOT USED
O
24 VAC COM
C
NOT USED
TROUBLE
OPTIONAL
OUTDOOR
SENSOR
CONNECTION
NOTE: Remove wires from crimp nut in indoor fan coil
IMPORTANT: When using outdoor thermostats, W 2 must be
Fig. 6—Typical 24v Circuit Connections
6
OTHER
NON-PROGRAMMABLE
HP THERMOSTAT
24 VAC HOT R
24 VAC COM C
HEAT STAGE 2 W
COOL/HEAT
Y
STAGE 1
INDOOR FAN G
O
RVS COOLING
EMERGENCY E
HEAT
CARRIER
PROGRAMMABLE FA, FB, FC,
THERMOSTAT FD, FF, FH
MODEL HP
24 VAC HOT R
G
INDOOR FAN
HEAT STAGE 2 W/W1
COOL/HEAT
Y/Y2
STAGE 1
RVS COOLING O/W2
NOT USED Y1/W2
24 VAC COM C
NOT USED B
*
IF AVAILABLE
L
TROUBLE
S1
OPTIONAL
OUTDOOR
SENSOR
S2
CONNECTION
CARRIER
FA, FB, FC,
PROGRAMMABLE
THERMOSTAT FD, FF, FH
MODEL HP FAN COIL
W3
R
EHR
R
G
G
W/W1
W2
Y/Y2
O/W2
EHR
Y1/W2
E
C
EHR
C
B
L
S1
S2
when installing outdoor thermostats.
energized when requesting supplemental heat.
FA, FB, FC,
FD, FF
HEAT
FAN COIL
PUMP
R
R
C
C
W2
W2
Y
G
O
HEAT
FAN COIL PUMP
R
R
G
*
W2 W2
*
E
*
W3
Y
O
C C
TWO
OUTDOOR
HEAT
PUMP THERMOSTATS
ODT
R
W2
Y
O
ODT
C
A01384