35
6.
Carry out a second measurement
and check the readjustment.
Record the new values in the com-
missioning report.
7.
Fix the supply air/extract air aper-
tures after the final adjustment (if nec-
essary fix with a locknut).
Note
Adjusting the air volumes using an impel-
ler air speed meter cannot provide high
accuracy. Deviations by ±10 % are pos-
sible. What is important is the propor-
tional distribution of the air flow rates for
the supply air and the extract air areas.
Curves/table for air flow rate
Supply air aperture for setting into a wall (DN 100)
Air flow rate in m³/h
1
2
3
4
5
0
20
40
60
0
7
6
5
4
3
A
Air speed in m/s
A
Number of apertures
Floor outlet
Aperture width in mm
Actual air speed in m/s
10
15
20
Air flow rate in m
3
/h
1.26
1.89
2.52
0.1
2.62
3.78
5.04
0.2
3.78
5.87
7.56
0.3
5.04
7.56
10.08
0.4
6.30
9.45
12.60
0.5
7.56
11.34
15.12
0.6
8.82
13.23
17.64
0.7
10.08
15.12
20.16
0.8
11.34
17.01
22.88
0.9
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5608 999 GB
