Carrier Programmable Dual Fuel Thermostats Installation, Start-Up, And Operating Instructions Manual page 8

DUAL FUEL SINGLE-STAGE
THERMOSTAT
24 VAC HOT R
FAN G
HEAT STAGE 2
W/W1
(FURNACE)
HEAT/COOL
Y/Y2
STAGE 1
(COMPRESSOR)
O/W2
RVS COOLING
Y1/W2
N/A
24 VAC COM C
N/A B
See notes 1, 2, 3, 4, and 9
RVS SENSING L
S1
OUTDOOR
SENSOR
S2
CONNECTION
ON
SUGGESTED DIP
SWITCH SETTINGS
A B C D
OFF OFF OFF OFF
→ Fig. 2—Single-Stage Furnace
with Single-Speed Heat Pump
DUAL FUEL TWO-STAGE
THERMOSTAT
24 VAC HOT
R
FAN G
HEAT STAGE 2
W/W1
(FURNACE LO)
HEAT/COOL
STAGE 1 Y/Y2
(COMPRESSOR)
RVS COOLING O/W2
HEAT STAGE 3
Y1/W2
(FURNACE HI)
24 VAC COM C
B
N/A
See notes 1, 2, 3, 4, 7, and 9
L
RVS SENSING
S1
OUTDOOR
SENSOR
S2
CONNECTION
ON
SUGGESTED DIP
SWITCH SETTINGS
A B C D
OFF OFF OFF OFF
→ Fig. 4—Two-Stage Furnace
with Single-Speed Heat Pump
SINGLE-SPEED
FURNACE HEAT PUMP
R
R
G
W2
W
Y
Y
O
C
C
HUM
OUTDOOR
SENSOR
SINGLE-SPEED
FURNACE
HEAT PUMP
R
R
G
W2
W/W1
Y
Y/Y2
O
W2
C
C
HUM
OUTDOOR
SENSOR
DUAL FUEL
THERMOSTAT
24 VAC HOT
FAN
HEAT STAGE 3
(FURNACE)
HEAT/COOL
STAGE 2
(COMPRESSOR HI)
RVS COOLING
HEAT/COOL
STAGE 1
(COMPRESSOR LO)
24 VAC COM
N/A
RVS SENSING
OUTDOOR
SENSOR
CONNECTION
ON
A B
OFF OFF OFF ON
→ Fig. 3—Single-Stage Furnace
A98443
with 2-Speed Heat Pump
DUAL FUEL
THERMOSTAT
24 VAC HOT
FAN
HEAT STAGE 3
(FURNACE)
HEAT/COOL
STAGE 2
(COMPRESSOR HI)
RVS COOLING
HEAT/COOL
STAGE 1
(COMPRESSOR LO)
24 VAC COM
N/A
RVS SENSING
OUTDOOR
SENSOR
CONNECTION
ON
A B
OFF OFF OFF ON
A98562
→ Fig. 5—Two-Stage Furnace
with 2-Speed Heat Pump
8
SINGLE-STAGE
FURNACE
R
R
G
G
W/W1 W
Y/Y2 Y
O/W2
Y1/W2
C
C
HUM
B
See notes 1, 2, 3, 4, 5, 6, and 10
L
OUTDOOR
S1
SENSOR
S2
SUGGESTED DIP
SWITCH SETTINGS
C D
TWO-STAGE
FURNACE
R
R
G
G
W/W1 W/W1
Y/Y2 Y/Y2
O/W2
Y1/W2
W2
C
C
HUM
B
See notes 1, 2, 3, 4, 5, 6, 8, and 10
L
OUTDOOR
S1
SENSOR
S2
SUGGESTED DIP
SWITCH SETTINGS
C D
TWO-SPEED
HEAT PUMP
R
W2
Y2
O
Y1
W3
C
A98444
TWO-SPEED
HEAT PUMP
R
W2
Y2
O
Y1
W3
C
A98563