Carrier AC - Installation Checklist and Wiring Diagrams; Wiring Diagrams (AC Models)

2. Press down button until LCD readout reads 10˚F below room
temperature. Cooling system should begin to operate within 5
minutes.
Step 7—Checklist
1. Run equipment through several heating and cooling cycles to
ensure proper operation.
2. If equipment is to be left in operation, BOTH heating and
cooling desired temperature settings as well as operating mode
must be properly selected. Refer to Homeowner’s Guide for
procedure.
3. Put away tools and instruments, and clean up debris.
4. Review Homeowner’s Guide with owner.
5. Leave literature packet with owner.
→Fig. 2—Single-Speed Air Conditioner
with Single-Stage Furnace
A97237
24 VAC HOT


24 VAC COMM


HEAT STAGE 1


COOL STAGE 1


FAN
R
C
G
W/W1
Y/Y2
R
C
C
MODEL AC
THERMOSTAT
SINGLE-STAGE
FURNACE
SINGLE-SPEED
AIR CONDITIONER
G
W
Y
Y
→Fig. 3—Single-Speed Air Conditioner
with 2-Stage or Variable-Speed Furnace
A97238
24 VAC HOT


24 VAC COMM


HEAT STAGE 1


COOL STAGE 1


FAN
R
C
G
W/W1
Y/Y2
R
C
C
MODEL AC
THERMOSTAT
TWO-STAGE OR
VARIABLE-SPEED
FURNACE
SINGLE-SPEED
AIR CONDITIONER
See note 1
G
Y
W/W1
Y
W2
A97239
→Fig. 4—Single-Speed Air Conditioner
with Typical Fan Coil
24 VAC HOT


24 VAC COMM


HEAT STAGE 1


COOL STAGE 1


FAN
R
C
G
W/W1
Y/Y2
R
C
C
Y
MODEL AC
THERMOSTAT
TYPICAL
FAN COIL
SINGLE-SPEED
AIR CONDITIONER
See notes 5 and 10
Y/Y2
G
*
*
W2
Y1
O
L
E
*
*
W3
A97123
→Fig. 5—Single-Speed Air Conditioner
with 2-Stage or Variable-Speed Furnace
24 VAC HOT


24 VAC COMM


HEAT STAGE 1


COOL STAGE 1


FAN
R
C
G
W/W1
Y/Y2
R
C
W2
C
Y
MODEL HP
THERMOSTAT
TWO-STAGE OR
VARIABLE-SPEED
FURNACE
SINGLE-SPEED
AIR CONDITIONER
See notes 2 and 3
W/W1
Y/Y2
G
HEAT STAGE 2


N/A


N/A


OUTDOOR

SENSOR

CONNECTION
Y1
B
S1
S2
O/W2
4