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
350
70
Supply air
duct
35
45
56
49
47
44
31
16
Extract air
duct
35
44
54
48
48
44
31
19
Cabinet
57
450
100
Supply air
duct
39
48
62
55
52
50
37
22
Extract air
duct
39
47
61
55
53
48
37
20
Cabinet
61
* Values for sound pressure calculated for a standard room with A = 10 m², H = 2.4m and mean absorption 0.2.
Tab. 8: Sound data for the a³ unit
Installation Guide
Danfoss Air Units
VIEWB302
Danfoss Heating Solutions
12