Honeywell S9240F1004

S9240F1004 MODULATING HOT SURFACE IGNITION INTEGRATED FURNACE CONTROL
69-2088—01 10
DIP Switch S3 Settings – Heating Airflow
DIP Switch S3 is used to adjust the heating airflow (CFM).
Refer to Fig. 4 on page 7 for location of DIP switch S3.
The LOW heat CFM setting adjusts the heating CFM that
corresponds to the lowest firing rate of the appliance. The
HIGH heat CFM setting adjusts the heating CFM that
corresponds to the highest firing rate of the appliance. The
CFMs between these two points are interpolated linearly.
The default factory settings (all OFF) are shown in Fig. 8 and
indicated in Bold in Table 7.
To change any setting, first disconnect the power, then set
SW14 through SW19 according to Table 7.
.
Fig. 8. DIP Switch S3 - shown with factory
default settings; all OFF.
.
DIP SWITCH S3
M28153
14 15 1716 18 19
LOW HEAT CFM CHANGE (7% OR 15%)
LOW HEAT CFM (NORMAL/MODIFIED)
LOW HEAT CFM (INCREASE/DECREASE)
HIGH HEAT CFM CHANGE (7% OR 15%)
HIGH HEAT CFM (NORMAL/MODIFIED)
HIGH HEAT CFM (INCREASE/DECREASE)
ON
Table 7. DIP Switch S3 Settings – Heating Airflow.
Description
Individual Switches
SW14 SW15
a
a
Switch 15 is ignored if switch 14 is in the OFF position.
SW16
b
b
Switch 16 is ignored if switch 14 is in the OFF position.
SW17 SW18
c
c
Switch 18 is ignored if switch 17 is in the OFF position.
SW19
d
d
Switch 19 is ignored if switch 17 is in the OFF position.
Normal Low Heat CFM
OFF
Modified Low Heat CFM ON
Increase Low Heat CFM
OFF
Decrease Low Heat CFM ON
Change Low Heat CFM by 7%
OFF
Change Low Heat CFM by 15% ON
Normal High Heat CFM
OFF
Modified High Heat CFM ON
Increase High Heat CFM
OFF
Decrease High Heat CFM ON
Change High Heat CFM by 7%
OFF
Change High Heat CFM by 15% ON