Lennox SIGNATURE SL280UHV Installation Instructions Manual page 32

SL280 Field Wiring Applications With Conventional Thermostat (Continued)
DIP Switch Settings and On−Board Links (figure 34)
DIP Switch 1
Thermostat
Thermostat
Heating
Stages
Dual Fuel
Single Stage OFF
Heat Pump
ComfortSense
7000 L7724U
thermostat w/
dual fuel capa-
bilities
Capable of 2
stage gas heat
control w/dehu-
midification
control
Dual Fuel
OFF
Two Stage
Heat Pump
ComfortSense
7000 L7724U
thermostat w/
dual fuel capa-
bilities
Capable of 2
stage gas heat
control w/dehu-
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 SL280
integrated control.
TABLE 11
On Board Links Must Be Cut To Select
System Options
CUT ON−BOARD LINK
W951
HEAT
PUMP
CUT ON−BOARD LINK
W914
DEHUM
OR
HARMONY
CUT ON−BOARD LINK
W915
2 STAGE
COMPR
CUT ON−BOARD LINK
W951
HEAT
PUMP
CUT ON−BOARD LINK
W914
DEHUM
OR
HARMONY
Page 32
Wiring Connections
FURNACE
HEAT PUMP
L7724U
TERM. STRIP
T'STAT
H
67M41*
L
Y2
D
B
Y2
T
T
FURNACE
HEAT PUMP
L7724U
TERM. STRIP
T'STAT
H
67M41*
L
Y2
D
B Y2
T
T
L
Y
outdoor
sensor
L
Y2
out blue
outdoor
sensor