Flow
m³/h
Pres-
sure Pa
Measured
at
Frequency band [Hz], sound power Lw (A) [dB(A)] Sound pressure
Lp(A) (standard*
room) [dB(A)]
63 125 250 500 1000 2000 4000 8000
162 70
Supply air
duct
23 34 40 36 29 25 17 18
Extract air
duct
23 33 39 37 29 24 18 18
Cabinet 40
162 100
Supply air
duct
25 35 43 38 31 28 18 18
Extract air
duct
25 36 42 39 30 25 17 18
Cabinet 41
216 70
Supply air
duct
26 36 44 39 33 30 19 18
Extract air
duct
28 36 43 41 34 29 18 18
Cabinet 45
216 100
Supply air
duct
26 37 44 40 34 31 19 18
Extract air
duct
27 37 45 42 35 30 19 18
Cabinet 46
250 100
Supply air
duct
28 39 46 42 37 33 21 18
Extract air
duct
30 39 48 45 38 33 20 18
Cabinet 49
* Values for sound pressure calculated for a standard room with A = 10 m², H = 2.4m and mean absorption 0.2.
Tab. 5: Sound data for the a² unit
Installation Guide
Danfoss Air Units
VIEWB302 Danfoss Heating Solutions
10
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