Lennox EL280UH Installation Instructions Manual page 27

DIP Switch Settings and On−Board Links (See figure 33)
Thermostat
DIP Switch 1
1 Heat / 1 Cool
NOTE − Use DIP
switch 2 to set sec-
ond−stage heat ON
delay.
OFF10 minutes.
ON−15 minutes.
1 Heat / 2 Cool
NOTE − Use DIP
switch 2 to set sec-
ond−stage heat ON
delay.
OFF−10 minutes.
ON−15 minutes.
TABLE 10
Field Wiring Applications
W915
Two−Stage
Cooling
ON Intact
ON Cut
W951
Heat Pumps
Intact
Intact
Page 27
Wiring Connections
S1 CONTROL
T'STAT TERM. STRIP
S1 CONTROL
T'STAT TERM. STRIP
OUTDOOR
UNIT
OUTDOOR
UNIT