17
2. The temperature rise must be within the range specified on
the rating plate.
NOTE: Air temperature rise is the temperature difference
between supply and return air.
With a properly designed system, the proper amount of
temperature rise will normally be obtained when the unit is
operated at the rated input with the recommended blower speed.
If the correct amount of temperature rise is not obtained, it may
be necessary to change the blower speed. A higher blower speed
will lower the temperature rise. A slower blower speed will
increase the temperature rise.
NOTE: Blower speed must be set to give the correct air
temperature rise through the unit as marked on the rating plate.
External Static Pressure Check
The total external static pressure must be checked on this unit to
determine if the airflow is proper.
Blower Speed Adjustments
Refer to the wiring diagram in “Troubleshooting” to verify the
speed tap settings.
Depending upon the model, blower speeds are changed at the
indoor blower. The ignition control board has 4 blower speeds:
Low Heat, High Heat, Low Cool and High Cool.
NOTE: Fan Only energizes at Low Heat speed.
The WGGE45 models are equipped with X-13 motors. X-13
motors are constant torque motors with very low power
consumption. This motor is energized by 24VAC. Adjust the CFM
for the unit by changing the 24VAC leads to the speed terminal
block on the motor.
NOTE: Heating airflow must be adjusted to provide the
temperature rise shown on the rating plate. A higher speed tap
may not provide more airflow. Blower speeds are programmed to
deliver adequate airflow at rated external static pressure (ESP).
Refer to airflow table provided in the Product Data Book
applicable to your model for details.
Blower Performance Data
Heating
Cooling
Speed
Tap
Definition
Lead
Color
Speed
Tap
Definition
Lead
Color
T1
Low Speed
Heat
White
T3
Low Speed
Cool
Purple
T2
High Speed
Heat
Brown
T4
High Speed
Cool
Yellow
T5
High Speed
Cool
High-Static
WGGE4524A070M—Rise Range: 35º to 65º
Unit Static
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
T1—1
st
-
Stage
Heating
Speed
CFM 742
677
631
575
526
-
-
-
Watts 84
89
97
101
111
-
-
-
Amps 0.75 0.82
0.90 0.92 1.01 -
-
-
Rise
52
57
62
X
X
-
-
-
T2—2
nd
-
Stage
Heating
Speed
CFM 907
857
814
761
727
678
-
-
Watts 134
140
149
154
165
169
-
-
Amps 1.18
1.24
1.32 1.33 1.41 1.47
-
-
Rise
57
61
64
X
X
X
-
-
T3—
Cooling
Speed
CFM 857
816
760
721
670
629
-
-
Watts 116
126
131
140
145
155
-
-
Amps 1.04
1.16
1.18 1.25 1.31 1.39
-
-
T4—
Cooling
Speed
CFM 907
857
814
761
727
678
-
-
Watts 134
140
149
154
165
169
-
-
Amps 1.18
1.24
1.32 1.33 1.41 1.47
-
-
T5—
Cooling
Speed
CFM 1,040 988
949
903
871
824
-
-
Watts 185
198
208
213
222
228
-
-
Amps 1.33
1.40
1.42 1.49 1.55 1.58
-
-
WGGE4530A090M—Rise Range: 45º to 75º
Unit Static
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
T1—1
st
-
Stage
Heating
Speed
CFM 1,065 1,003 961
913
855
814
749
713
Watts 168
174
185
195
202
212
218
227
Amps 1.42 1.48
1.55 1.62 1.69 1.76
1.82 1.87
Rise
49
52
54
57
60
63
69
72
T2—2
nd
-
Stage
Heating
Speed
CFM 1,255 1,217 1,165 1,113 1,073 1,018 991
-
Watts 257
269
274
285
296
302
313
-
Amps 2.10
2.19
2.21 2.30 2.36 2.41
2.48 -
Rise
55
57
59
62
64
68
70
-
T3—
Cooling
Speed
CFM 1,148 1,092 1,044 994
929
811
763
715
Watts 170
176
184
194
210
222
224
236
Amps 1.55
1.66
1.72 1.77 1.89 1.99
2.03 2.07
T4—
Cooling
Speed
CFM 1,148 1,092 1,044 994
929
811
763
715
Watts 170
176
184
194
210
222
224
236
Amps 1.55
1.66
1.72 1.77 1.89 1.99
2.03 2.07
T5—
Cooling
Speed
CFM 1,333 1,293 1,237 1,193 1,158 1,101 -
-
Watts 304
314
321
333
341
345
-
-
Amps 2.41
2.48
2.54 2.71 2.77 2.78
-
-