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RDM-38-1120
8. Measuring and adjusting airflow
NORDcanopy canopies are fitted with measuring nozzles located inside the canopy.
ATTN! During measurement, HFU steam filters must be fitted and front panel must be closed.
In order to adjust supply airflow, the position of the adjusting plate, located in the supply chamber, is
adjusted.
Front panel
per 1m k-factor
SPx0 -
SPx1* 19,2
SPx2* 32,3
SPx3* 50,4
AirGrip 2,4
=
12341234
121
323
44
Lk-factor
s=1 s=2 s=3 s=4
1000 38,9 34,4 29,1 25,7
1500 43,8 37,6 30,9 27,0
2000 77,9 68,7 58,1 51,5
2500 83,8 72,7 60,5 53,1
3000 87,7 75,2 61,9 54,0
3500 123,2 107,4 89,7 79,0
4000 155,7 137,5 116,2 102,9
4500 162,3 142,0 118,9 104,8
5000 167,6 145,4 120,9 106,2
5500 171,9 148,2 122,5 107,2
6000 175,3 150,4 123,8 108,0
Adjusting plate located behind HFU condensation plates is used for adjusting exhaust airflow.
For fixing the regulating plate, lock the butterfly nuts!
*The supply panels k-factor contain the "AirGrip" air nozzle system K-factor.
Calculation example:
Supply air canopy L=2 meter with SPx2 front panel.
Calculation of the supply air volume:
Pressure in the supply air chamber is 26 Pa
Front panel SPx2 k-factor is 32,3
Qs = 2 x 32,3 x √26 = 330 l/s
Qv=k√∆pm