7
COMFORT 600
BY NILAN
Sound data
Sound data for q
V
= 600 m
3
/h and P
t, ext
= 100 Pa according to
EN 9614-2 for surfaces and EN 5136 for ducts.
Sound output level L
WA
drops with falling air volume
and falling back pressure.
Sound output level L
pA
at a given distance will depend on
acoustic conditions in the place of installation.
Octave band
Hz
Surface
dB(A)
Supply air
dB(A)
Extract air
dB(A)
63
34
58
41
125
43
59
42
250
48
64
47
500
47
65
41
1000
53
67
31
2000
43
63
27
4000
38
60
17
8000
36
59
13
Total ±2 dB(A)
55
72
50
Sound output level (L
WA
)
