Heating Operation; Cooling Operation - Carrier Programmable Dual Fuel Thermostats Installation, Start-Up, And Operating Instructions Manual

HEATING OPERATION

1. Press MODE button until HEAT is displayed under the mode
annunciator.
2. Make sure outdoor temperature is above balance point setting,
so that HP will be enabled.
3. Press up button until display reads 10 degrees above room
temperature. HP should begin to operate within 5 minutes.
4. Press MODE button until EHEAT is displayed. Furnace
should begin to operate within 5 minutes.

COOLING OPERATION

1. Press MODE button until COOL is displayed under the mode
annunciator.
2. Press down button until display reads 10 degrees below room
temperature. Cooling system should begin to operate within 5
minutes.
DUAL FUEL
SINGLE-STAGE
THERMOSTAT
FURNACE
24 VAC HOT
R
G
FAN
W/W1
FURNACE
Y/Y2
COMPRESSOR
RVS COOLING
O/W2
Y1/W2
N/A
24 VAC COM
C
RVS HEATING B
L
RVS SENSING
S1
OUTDOOR
SENSOR
S2
CONNECTION
Fig. 2—Single-Stage Furnace with Single-Speed
Heat Pump
SINGLE-SPEED
HEAT PUMP
R
R
G
W2
W
Y
Y
O
C
C
SEE NOTE 1
OUTDOOR
TEMPERATURE
SENSOR
A95215
Step 7—Select Desired Operation
1. Press FAN button to select AUTO or ON position. Fan
annunciator displays current selection.
2. Press MODE button to select OFF, HEAT, COOL, or
EHEAT. If AUTO is selected, first select heating desired
temperature in HEAT mode and cooling desired temperature
in COOL mode. Refer to homeowner's guide. Mode annun-
ciator displays current selection.
3. Press up or down buttons to select desired temperature.
4. If daily cycles are to be programmed now, refer to Homeown-
er's Guide for programming instructions.
5. If thermostat has not been programmed, press HOLD button to
retain desired temperature setting.
NOTE: If HOLD button is not left ON, temperature setting will
be lost until time/temperature program is entered.
Step 8—Checklist
1. Put away tools and instruments, and clean up debris.
2. Review Homeowner's Guide with owner.
3. Leave literature packet with owner.
DUAL FUEL
THERMOSTAT
24 VAC HOT R
G
FAN
W/W1
FURNACE LO
Y/Y2
COMPRESSOR
RVS COOLING O/W2
Y1/W2
FURNACE HI
24 VAC COM
C
RVS HEATING B
L
RVS SENSING
S1
OUTDOOR
SENSOR S2
CONNECTION
Fig. 3—Two-Stage or Variable-Speed Furnace with
Single-Speed Heat Pump
5
TWO-STAGE OR
SINGLE-SPEED
VARIABLE SPEED
HEAT PUMP
FURNACE
R
R
G
W2
W/W1
Y/Y2
Y
O
O
W2
Y1
C
C
SEE NOTES 1 AND 2
OUTDOOR
TEMPERATURE
SENSOR
A95216