S O U N D D A T A
8
LPKB 8” A UL
115 V, 316 CFM, 0.80 H2O
LpA
LwA tot dB (A)
63
125
250
500
1K
2K
4K
8K
Environment
53
60
33
44
52
58
49
46
41
32
Inlet
76
54
62
69
73
64
62
60
50
Outlet
79
54
62
69
73
64
62
60
50
90 V, 252 CFM, 0.50 H2O
LpA
LwA tot dB (A)
63
125
250
500
1K
2K
4K
8K
Environment
48
55
28
39
48
53
42
40
34
29
Inlet
70
50
59
64
67
57
55
52
39
Outlet
71
53
58
65
68
60
61
56
42
70 V, 165 CFM, 0.26 H2O
LpA
LwA tot dB (A)
63
125
250
500
1K
2K
4K
8K
Environment
40
47
25
41
44
40
34
31
28
28
Inlet
61
43
53
58
56
48
44
42
24
Outlet
63
47
52
59
58
51
52
46
28
The sound data have been compiled by means of sound
measurements methods as follows:
Pressure and drop: ISO 5801.
Determination of acoustic sound level in duct:
EN ISO 5136.
Determination of acoustic sound level in reverberation
room: EN ISO 3741.
D E S I G N A T I O N S
LwATot
: Total A-weighted sound power level dB(A)
(ref 10
-12
W)
=
the sum of the sound power level in the
octave ranges.
LwA
: A-weighted sound power level in octave range
dB(A)(ref 10
-12
W).
LpA
: A-weighted sound pressure level in dB(A) accor-
ding to normed A-weightening correction and relating
to an effective absorption area of 20 m
2
with half sphe-
rical translation at a distance of 3 metres.