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B
Balancing mode 1
2.1.1
High Speed Balancing
:
With all dampers fully open and the exhaust fan speeds at
the factory setting, run the fan coil in high ventilation
mode. Using a hot wire anemometer or pitot tube and
micromanometer measure the air velocity (hot wire) or
velocity pressure (micromanometer) in the HRV return
and HRV outside air. The table below shows cfm values
for various meter readings.
2.3.1.1
Outside Air High Speed Adjustment
If the outside air flow is too low, gradually close
the return air grille damper (A) until the desired
OA flow is measured. If the outside air flow is too
high gradually close the outside air balancing
damper (B) until the OA flow is obtained.
Outside Air
Return Air
Flow
Velocity
Pressure
Velocity
Pressure
CFM
fpm
inwc
fpm
inwc
30
238
0.0035
221
0.0030
40
317
0.0063
294
0.0054
50
397
0.0098
368
0.0084
60
476
0.0142
441
0.0122
70
556
0.0193
515
0.0166
80
635
0.0252
588
0.0216
90
714
0.0319
662
0.0274
100
794
0.0394
735
0.0338
110
873
0.0476
809
0.0409
120
952
0.0567
882
0.0487
Balancing
Ports
Summary of Contents for Enerboss 400C Series
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