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→ Fig. 2—Single-Speed Air Conditioner with Single-
Stage Furnace—Model AC Thermostat
A98485
24 VAC HOT
FAN
HEAT STAGE 1
COOL STAGE 1
N/A
N/A
R
G
W/W1
Y/Y2
O/W2
Y1/W2
R
G
W
Y
24 VAC COMM
N/A
OUTDOOR
SENSOR
CONNECTION
C
B
S1
S2
C
Y
C
MODEL AC
THERMOSTAT
SINGLE-STAGE
FURNACE
SINGLE-SPEED
AIR CONDITIONER
See note 1
SUGGESTED DIP
SWITCH SETTINGS
ON
ABCD
OFF OFF OFF OFF
→ Fig. 3—Single-Speed Air Conditioner
with 2-Stage or Variable-Speed Furnace
—Model AC Thermostat
A98486
24 VAC HOT
FAN
HEAT STAGE 1
COOL STAGE 1
N/A
N/A
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
Y
C
MODEL AC
THERMOSTAT
TWO-STAGE OR
VARIABLE-SPEED
FURNACE
SINGLE-SPEED
AIR CONDITIONER
See notes 1 and 6
W/W1
Y/Y2
HUM
W2
SUGGESTED DIP
SWITCH SETTINGS
ON
ABCD
OFF OFF OFF OFF
→ Fig. 4—Single-Speed Air Conditioner
with 2-Stage or Variable-Speed Furnace
—Model HP Thermostat
A98487
24 VAC HOT
FAN
HEAT STAGE 1
COOL STAGE 1
HEAT STAGE 2
N/A
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
Y
C
MODEL HP
THERMOSTAT
TWO-STAGE OR
VARIABLE-SPEED
FURNACE
SINGLE-SPEED
AIR CONDITIONER
See note 2
W/W1
Y/Y2
HUM
W2
SUGGESTED DIP
SWITCH SETTINGS
ON
ABCD
OFF OFF ON OFF
—7—