Lennox ComfortSense L7742U

506228−01 05/09
Page 28
Stage Delay & Differential Settings (Installer settings) (continued)
H/C
Stages
Locked =
NO
H/C
Stages
Locked =
YES
SET-
POINTS:
3rd stage
ON
1st stage
ON
2nd stage
ON
3rd stage
ON
1st stage
ON
2nd stage
ON
2nd stage
OFF
3rd stage
OFF
1st stage
OFF
1st stage
OFF
2nd stage
OFF
3rd stage
OFF
SP −1.5 SP −1.0 SP −0.5
SP
SP +0.5SP −2.0
Stg1 Differential
Stg3 Differential
Stg2 Differential
SP −2.5SP −3.0SP −3.5
Stg1 Differential
Stg3 Diff.
Stg2 Differential
Figure 11. Heating − dual fuel − 3 stage (1 compressor / 2 backup)