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Y
W
G
R
W1
Y/Y2
G
R
C C
OM
TWO-STAGE or VS
FURNACE
CONTROL
SINGLE-STAGE
AIR CONDITIONER
Y
C
SINGLE-STAGE
THERMOSTAT
W2
OPTIONAL
HUMIDISTAT
H-STAT
24V in
COM
OPTIONAL
HUMIDIFIER
OPTIONAL
DEHUMIDISTAT
Connect 1 to Y/Y2 for
1-stage AC/ HP
applications
1
2
24V HUM
DEHUM
Y1
O
TSIB
NOTE 5
NO CONNECTION
NO CONNECTION
NOTE 3
NOTE 2
NOTE 2
NOTE 11
NOTE 7
A09202
Fig. 57 -- No HUM and/or DEHUM Terminal available from Thermostat. Humidifier Wiring Models
and Dehumidify Wiring
Y
W
G
R
W1
Y/Y2
G
R
C C
OM
TWO-STAGE or VS
FURNACE
CONTROL
SINGLE-STAGE
AIR CONDITIONER
Y
C
SINGLE-STAGE
THERMOSTAT
W2
NOTE 7
Y1
O
TSIB
NOTE 5
OPTIONAL
HUMIDISTAT
H-STAT
24V in
COM
OPTIONAL
HUMIDIFIER
Connect 1 to Y/Y2 for
1-stage AC/ HP
applications
1
2
NO CONNECTION
NO CONNECTION
(HP may use O)
DEHUM
24V HUM
NOTE 3
NOTE 2
NOTE 2
OPTIONAL
DEHUMIDISTAT
NOTE 11
A09203
Fig. 58 -- Single--Stage Thermostat with Variable Speed Furnace Models
and Single--Stage Air Conditioner
58HDV