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Whirlpool WGFD28 Installation Instructions Manual page 26

80% 2-stage variable speed gas furnace gold models
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Profile D
Ramps up to 50% of the full cooling demand airflow for
30 seconds.
Then ramps to 82% 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
82% 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 44°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."
Switch Bank: S4
DIP Switch Number
Heating Tap
7
A
Off
B*
On
C
Off
D
On
*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
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
26
50% CFM
100% CFM
Off
30 sec
8
Off
Off
On
On
Short-Run
Off -Delay
-
60 sec/100
30 sec/50
60 sec/100
7.5 min/82
60 sec/100
7.5 min/82
30 sec/50
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 positions.
Model
WGFD28070V3BX
WGFD28090V5CX
WGFD28115V5CX
WGFM28070V4BX
WGFM28090V5CX
WGFM28115V5CX
Tap
Low-
High-
Low-
Stage
Stage
Stage
Cool
Cool
Heat
A
425
650
740
B
585
900
800
C
860
1,320 875
D
1,040 1,600 950
A
520
800
950
B
715
1,100 1,020 1,460
C
1,040 1,600 1,090 1,560
D
1,170 1,800 1,160 1,660
A
520
800
1,090 1,560
B
715
1,100 1,160 1,660
C
1,040 1,600 1,230 1,760
D
1,170 1,800 1,260 1,800
A
390
600
835
B
515
790
940
C
720
1,110 1,020 1,460
D
915
1,410 1,120 1,600
A
520
800
980
B
795
1,220 1,080 1,540
C
910
1,400 1,160 1,660
D
1,170 1,800 1,260 1,800
A
520
800
1,205 1,720
B
795
1,220 1,260 1,800
C
1,000 1,540 1,300 1,860
D
1,170 1,800 1,400 2,000
High-
Stage
Heat
1,055
1,145
1,250
1,355
1,360
1,195
1,340
1,400

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