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