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Thermostat
DIP Switch 1
Dual Fuel Single-
Stage Heat Pump
thermostat w/dual
OFF
fuel capabilities
Capable of 2-stage
gas heat control
Dual Fuel Two-
Stage Heat Pump
thermostat w/dual
OFF
fuel capabilities
Capable of 2-stage
gas heat control
* "R" required on some units.
** Connect W1 to W1 ONLY if using defrost tempering kit
DIP Switch Settings and On-Board Links
W915
(Y1 to Y2)
(DS to R)
Two-Stage Cooling
Dehumidification
Intact
Cut
Table 31. Field Wiring
Page 68
W914
W951
(O to R)
Heat Pumps
Intact
Cut
Intact
Cut
Wiring Connections
CONTROL
T'STAT
TERM. STRIP
HEAT PUMP
H
67M41**
L
L
Y
Y2
D
B
Y2
T
outdoor
sensor
T
CONTROL TERM.
T'STAT
STRIP
HEAT PUMP
H
67M41**
L
L
Y2
Y2
D
out
B
blue
T
outdoor
sensor
T
31-5000723 Rev. 0
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