Whirlpool WGFM29 Installation Instructions Manual page 37

93% and 95% 2-stage variable-speed gas furnace
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Profile A
Provides a 1-minute Off delay at 100% of the cooling
demand airflow.
100% CFM
Off
Cooling
Demand
Profile B
Ramps up to 50% of the full cooling demand airflow for
30 seconds.
The motor then ramps to 100% of the required airflow.
Provides a 1-minute Off delay at 100% of the cooling
demand airflow.
100% CFM
Off
50% CFM
¹⁄₂ min
Cooling Demand
Profile C
Ramps up to 85% of the full cooling demand airflow for
approximately 7¹⁄₂ minutes.
The motor then ramps to 100% of the required airflow.
Provides a 1-minute Off delay at 100% of the cooling
demand airflow.
85% CFM
Off
7¹⁄₂ min
Cooling Demand
Profile D
Ramps up to 50% of the full cooling demand airflow for
30 seconds.
Then ramps to 85% of the full cooling demand airflow for
approximately 7¹⁄₂ minutes.
The motor then ramps to 100% of the required airflow.
Provides a 30-second Off delay at 50% of the cooling
demand airflow.
50% CFM
85% CFM
Off
7¹⁄₂ min
30 sec
Cooling Demand
6. Select the heating speed from the heating speed chart in the
Specification Sheet for your model. The Adjust Taps setting
(already established by the cooling speed selection)
determines which set of speeds are available. The selected
speed must provide a temperature rise within the rise range
listed with the particular model.
Example: The WGFM290508V4C is set for 990 CFM on
cooling, the "ADJUST" is set to "+" (plus). The 4 heating
speeds available are "A Plus," "B Plus," "C Plus" and "D
Plus." "A Plus" has a rise of 46°F for both stages which is
within the 30-60°F rise range for the WGFM290508V4C. This
setting will keep electrical consumption to a minimum. Set
the "Heat" speed DIP switches to "A."
100% CFM
Off
1 min
100% CFM
1 min
100% CFM
100% CFM
Off
1 min
50% CFM
100% CFM
Off
30 sec
Switch Bank: S4
Heating Tap
A
B*
C
D
*Indicates factory setting
7. Select the desired heating speed tap by positioning DIP
switches 7 and 8 appropriately. Verify CFM by noting the
number displayed on the dual 7-segment LED display.
In general, lower heating speeds will reduce electrical
consumption, lower operating sound levels of the blower and
increase the outlet air temperature delivered to the home. The
Off
speeds available allow the blower performance to be optimized
for the particular homeowner's needs.
Profiles
Pre-Run
A
-
B*
-
C
-
D
30 sec/50
*Indicates factory setting
To Set Airflow
1. Select the model and desired high-stage cooling airflow.
2. Determine the corresponding tap (A, B, C, or D).
3. Set DIP switches 1 and 2 to the appropriate On/Off positions.
4. Select the model and desired high-stage heating airflow.
5. Determine the corresponding tap (A, B, C, or D).
6. Set DIP switches 7 and 8 to the appropriate On/Off positions.
7. Select the airflow adjustment factor taps (A and D are 1; Tap
B is +10; Tap C -10).
8. Set DIP switches 3 and 4 to the appropriate On/Off positions.
To Set Comfort Mode
1. Select desired comfort mode profile. See Comfort Mode
Profile chart.
2. Set DIP switches 5 and 6 to the appropriate On/Off position.
Model
WGFD295070V4C
DIP Switch Number
7
8
Off
Off
On
Off
Off
On
On
On
Short-Run
Off -Delay
-
60 sec/100
30 sec/50
60 sec/100
7.5 min/85
60 sec/100
7.5 min/85
30 sec/50
Tap
Low-
High-
Low-
Stage
Stage
Stage
Cool
Cool
Heat
A
360
660
870
B
520
830
950
C
780
1,130
1,040
D
960
1,460
1,130
High-
Stage
Heat
1,230
1,350
1,470
1,600
37

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