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Blower data
Airflow perfomance data is based on cooling performance with a coil and no filter in place. Check the
performance table for appropriate unit size selection. External static pressure should stay within the
minimum and maximum limits shown in the table below to ensure proper cooling, heating, and electric
heating operation.
NOTES:
•
Required 350-450 CFM/Ton range.
•
When there is an electric heater, set the fan speed based on the air volume that the electric heater
needs (not less than 350 CFM/Ton).
•
Airflow based upon air handler unit operates at 230 V with no electric heater kit and no filter.
Airflow at 208 V is approximately the same as 230 V.
•
Model: WFH24Z193C
Fan speed
CFM
Tap (2)
Default setting
CFM
Tap (3)
CFM
Tap (4)
CFM
Tap (5)
•
Model: WFH36Z193C
Fan speed
CFM
Tap (2)
Default setting
CFM
Tap (3)
CFM
Tap (4)
CFM
Tap (5)
0
0.1
(0)
(0.02)
815
792
w
94
102
862
828
w
106
114
w
w
0
0.1
(0)
(0.02)
1,216
1,264
w
215
222
1,350
1,314
w
257
264
w
w
External static pressure
in.H2O [KPa]
0.18
0.3
0.4
(0.045)
(0.07)
(0.1)
752
709
110
123
792
735
705
125
137
145
859
853
178
185
External static pressure
in.H2O [KPa]
0.18
0.3
0.4
(0.045)
(0.07)
(0.1)
1,096
1,172
1,135
233
244
238
1,269
1,206
1,116
274
282
292
1,323
1,266
304
313
1,350
371
15
0.5
0.6
0.7
(0.12)
(0.15)
(0.17)
803
769
735
193
203
213
825
895
864
241
251
258
0.5
0.6
0.7
(0.12)
(0.15)
(0.17)
1,082
1,050
297
302
1,192
1,122
1,060
323
333
340
1,292
1,148
1,221
381
394
401
0.8
(0.20)
779
267
0.8
(0.20)
1,088
406
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