Lennox SL280DFV Installation Instructions Manual page 25

DIP Switch Settings and On−Board Links (See figure 25)
DIP Switch 1
Thermostat
Thermostat
Heating
Stages
1 Heat / 1 Cool ON
NOTE − Use DIP
switch 2 to set
second−stage
heat ON delay.
OFF−7 minutes.
ON−12 minutes.
1 Heat / 2 Cool ON
NOTE − Use DIP
switch 2 to set
second−stage
heat ON delay.
OFF−7 minutes.
ON−12 minutes.
1 Heat / 2 Cool ON
with t'stat with
humidity control
NOTE − Use DIP
switch 2 to set
second−stage
heat ON delay.
OFF−7 minutes.
ON−12 minutes.
* Not required on all units.
SL280 Field Wiring Applications With Conventional Thermostat
On Board Links Must Be Cut To Select
System Options
DO NOT CUT ANY
ON−BOARD LINKS
CUT ON−BOARD LINK
W915
2 STAGE
COMPR
CUT ON−BOARD LINK
W915
2 STAGE
COMPR
CUT ON−BOARD LINK
W914
DEHUM
OR
HARMONY
TABLE 13
Page 25
Wiring Connections
S1 FURNACE OUTDOOR
T'STAT TERM. STRIP
*
S1 FURNACE OUTDOOR
T'STAT TERM. STRIP
*
S1 FURNACE
T'STAT TERM. STRIP
o
UNIT
UNIT
OUTDOOR
UNIT
*