Page 12 - Air Handling Units.cdr

AIR Handling UNITS

Leaks of the lters

Filter tightness is determined by the measurement of leak quantity through the slits between
the ler frames, installed in the lter wall, and the lters. Leaks throgh the housing are taken
into account during the measurement. A leak is measured as a portion i % of the leak
between the slits.

Obtained class PN-EN 1886:2007 standard requirements
According to Filter class
PN-EN 1886:2007

Central station type

KMW ZR KMW ZR T1 T2 T3 T4 T5
climat 40 climat 70
Volumetric flow rate through the filter assembly in % of
F9 (M) F9 (M) the volumetric flow rate

6 421 0,5

Noise reduction

The resulting noise reduction of the housing can be obtained by assessing the difference the
noise level of the source, and the level of noise coming out of the housing. The measurements
have been performed in accordance with the ISO 3744:1994 standard for two housing types.
Noise reduction values are specied in respective octaves and as resulting values.

Band 63 125 250 500 1000 2000 4000 8000 on average

Housing type Hz Hz Hz Hz Hz Hz Hz Hz Hz
KMW ZR-climat 40
KMW ZR-climat 70 2,3 11,2 26,2 31,8 36,9 35,8 34,7 27,2 32,2
4,5 8,7 28,1 31,7 36,9 43,6 45,8 34,5 35,1

fon +48(0)52 569 8000 kmw.pl
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