Lennox SL280DFNV Series Unit Information page 45

Field Wiring Applications With Conventional Thermostat (Continued)
DIP Switch 1
Thermostat
Thermostat
Heating
Dual Fuel
Single Stage
Heat Pump
ComfortSense
thermostat w/
bilities
Capable of 2
stage gas heat
midification
control
Dual Fuel
Two Stage
Heat Pump
ComfortSense
thermostat w/
bilities
Capable of 2
stage gas heat
midification
* Connect W1 to W1 ONLY if using defrost tempering kit 67M41
NOTE - Do NOT make a wire connection between the room thermostat L terminal and the L terminal of the furnace
integrated control.
DIP Switch Settings and On-Board Links
On Board Links Must Be Cut To Select
Stages
OFF
CUT ON-BOARD LINK
W951
HEAT
PUMP
CUT ON-BOARD LINK
W914
DEHUM
OR
HARMONY
CUT ON-BOARD LINK
OFF
W915
2 STAGE
COMPR
CUT ON-BOARD LINK
W951
HEAT
PUMP
CUT ON-BOARD LINK
W914
DEHUM
OR
HARMONY
System Options
Page 45
Wiring Connections
FURNACE
HEAT PUMP
T'STAT
TERM. STRIP
H
67M41*
L
Y2
D
B
Y2
T
T
FURNACE
HEAT PUMP
T'STAT
TERM. STRIP
H
67M41*
L
Y2
D
B Y2
T
T
L
Y
outdoor
sensor
L
Y2
out blue
outdoor
sensor