Carrier Thermostat Installation, Start-Up, And Operating Instructions Manual page 9

MODEL 2S TWO-STAGE OR
THERMOSTAT VARIABLE-SPEED
COOL STAGE 1 Y1/W2
FAN G
HEAT STAGE 1 W/W1
COOL STAGE 2 Y/Y2
HEAT STAGE 2 O/W2
R
24 VAC HOT
24 VAC COMM C
N/A B
OUTDOOR S1
SENSOR
CONNECTION S2
ON
SUGGESTED DIP
SWITCH SETTINGS
A B C D
OFF OFF ON OFF
Fig. 9—Two-Speed Air Conditioner
with 2-Stage or Variable-Speed Furnace
—Model 2S Thermostat
MODEL 2S SINGLE-STAGE
THERMOSTAT FURNACE
COOL/HEAT Y1/W2
STAGE 1
RVS COOLING
O/W2
HEAT STAGE 3 W/W1
COOL/HEAT Y/Y2
STAGE 2
FAN G
R
24 VAC HOT
24 VAC COMM C
N/A B
S1
OUTDOOR
SENSOR
S2
CONNECTION
ON
SUGGESTED DIP
SWITCH SETTINGS
A B C D
OFF OFF OFF OFF
Fig. 11—Two-Speed Heat Pump
with Single-Stage Furnace
—Model 2S Thermostat
TWO-SPEED
AIR CONDITIONER
FURNACE
Y1 *
Y1
G
W/W1
Y2
Y/Y2
W2
R
R
C C
HUM
See notes 2, 5, and 7
A98492
TWO-SPEED
HEAT PUMP
Y1
O
W
W2
Y
Y2
G
W3
R
R
C C
See notes 3, 9, and 11
A98494
MODEL 2S
THERMOSTAT
24 VAC HOT R
FAN G
HEAT STAGE 1 W/W1
COOL STAGE 2 Y/Y2
HEAT STAGE 2 O/W2
COOL STAGE 1 Y1/W2
24 VAC COMM C
N/A B
S1
OUTDOOR
SENSOR
S2
CONNECTION
ON
SUGGESTED DIP
SWITCH SETTINGS
A B C D
OFF OFF ON OFF
Fig. 10—Two-Speed Air Conditioner
with Typical Fan Coil—Model 2S Thermostat
MODEL 2S
THERMOSTAT
COOL/HEAT Y1/W2
STAGE 1
RVS COOLING
O/W2
HEAT STAGE 3 W/W1
COOL/HEAT Y/Y2
STAGE 2
G
FAN
24 VAC HOT R
24 VAC COMM C
N/A B
OUTDOOR
S1
SENSOR
S2
CONNECTION
ON
SUGGESTED DIP
SWITCH SETTINGS
A B C D
OFF OFF OFF OFF
Fig. 12—Two-Speed Heat Pump
with 2-Stage or Variable-Speed Furnace
—Model 2S Thermostat
9
TYPICAL TWO-SPEED
FAN COIL AIR CONDITIONER
R
R
G
W2
*
Y
Y2
W3
E
Y1
C
C
See notes 2, 7, and 8
A98493
TWO-STAGE OR
TWO-SPEED
VARIABLE-SPEED HEAT PUMP
FURNACE
Y1 *
Y1
*
O
O
W/W1
W2
Y/Y2
Y2
G
W3
R
R
W2
C
C
HUM
See notes 3, 6, 7, 9, and 11
A98495