Lennox SL280UHNV Series

Page 45
Field Wiring Applications With Conventional Thermostat (Continued)
Thermostat
DIP Switch Settings and On-Board Links (See figure 4)
Wiring Connections
DIP Switch 1
Thermostat
Heating
Stages
On Board Links Must Be Cut To Select
System Options
2 Heat / 2 Cool OFF
CUT ON-BOARD LINK
W915
2 STAGE
COMPR
S1
T'STAT
FURNACE
TERM. STRIP
OUTDOOR
UNIT
*
2 Heat / 2 Cool
with t'stat with
humidity control
OFF
CUT ON-BOARD LINK
W915
2 STAGE
COMPR
CUT ON-BOARD LINK
W914
DEHUM
OR
HARMONY
S1
T'STAT
FURNACE
TERM. STRIP
OUTDOOR
UNIT
o
*
2 Heat / 1 Cool
with t'stat with
humidity control
OFF
CUT ON-BOARD LINK
W914
DEHUM
OR
HARMONY
S1
T'STAT
FURNACE
TERM. STRIP
OUTDOOR
UNIT
o
*
2 Heat / 1 Cool OFF
DO NOT CUT ANY
ON-BOARD LINKS
S1
T'STAT
FURNACE
TERM. STRIP
OUTDOOR
UNIT
*
* Not required on all units.