34
9.5 - Sound power levels
9.5.1 - Standard insulation
42EM 1.0 - with two discharge spigots
Octave band frequency (Hz)
V
Type
125
250
500
1 K
2 K
4K
8K
dBA
V1
SUP
57.3
55.1
46.2
43.1
37.1
31.3
26.5
50.3
REP
60
57.8
52
46.8
43.5
38.7
33.4
54.3
RAD
57.6
50.3
45.2
37.6
32.2
24.7
26.1
47.3
V2
SUP
54.8
51.4
42.7
39.4
33.4
26.1
23.3
46.8
REP
57.8
54.1
49
43.3
39.9
34
28.6
51
RAD
54.1
46.8
41.7
34.2
28.4
19.9
22.4
43.8
V3
SUP
51.5
48.8
40.1
36.5
30.4
22.2
22.2
44
REP
55
51.5
46.4
40.8
36.8
29.8
23.4
48.3
RAD
53.2
44.1
37
31
25.6
16.8
20.9
41.1
V4
SUP
48.4
45.2
36.9
33
26.4
18
21.8
40.6
REP
51.9
47.7
43.2
37.1
32.5
23.9
20.6
44.7
RAD
49.9
40.7
33.8
27.4
21.7
14.2
20.3
37.8
V5
SUP
45.4
42.5
34.1
29.7
22.4
15.8
21.6
37.7
REP
48.9
44.6
40.6
33.7
28
19.2
19.9
41.7
RAD
46.2
37.8
30.9
24.2
17.7
13.2
20.1
34.6
V6
SUP
43.1
40.1
32.1
26.9
19
15
21.6
35.4
REP
46.7
42.6
38.6
30.9
24.5
16.9
19.8
39.5
RAD
43.8
35.9
29.1
21.5
15
12.9
20.1
32.6
42EM 2.0 and 3.0 - with 2 discharge spigots
Octave band frequency (Hz)
V
Type
125
250
500
1 K
2 K
4K
8K
dBA
V1
SUP
57.4
54.3
49.1
40.3
31.8
28.1
22.6
50.3
RET
62.7
60.4
55.9
48.4
44.8
38.6
31.2
57
RAD
54.8
48.5
41.4
34.3
29.3
19.5
21.2
44.4
V2
SUP
54.3
51.1
45.7
36.6
27.7
22.8
19.9
46.8
RET
58.7
56.5
52.8
44.6
40.5
33.2
25.2
53.4
RAD
51.1
45
38.2
30
25.3
14.9
18.6
40.9
V3
SUP
49.5
45.4
40.3
30.3
20.2
14.4
19.0
41.3
RET
53.7
50.9
47.3
38.1
32.9
24.5
19.4
47.6
RAD
47.6
39.3
33.1
23.8
18.2
11.3
18.2
35.9
V4
SUP
44
39.6
34.2
22.9
12
9.9
18.9
35.3
RET
50
46.3
42.7
32.5
26.2
18
18.6
42.9
RAD
44.5
33.7
27.5
16.6
11.1
10.3
18.1
31.5
V5
SUP
40.3
37.3
27.7
17.5
7
9.4
18.9
31.5
RET
43.5
42.2
37.6
27
19.3
14.6
18.6
38
RAD
42
30.9
23.4
12.4
8.2
10.7
18.8
28.8
V6
SUP
39.8
34.4
28.1
15.4
6.1
8
18.5
30.1
RET
43.3
39.2
34.4
22.5
15.8
13.9
17
35.2
RAD
39.4
28.8
21.1
10.6
7.8
10.3
18.1
26.8
42EM 2.1 and 3.1 - with 2 discharge spigots
Octave band frequency (Hz)
V
Type
125
250
500
1 K
2 K
4K
8K
dBA
V1
SUP
56
51.0
44
38
30
23
21
46.7
RET
58.5
53
48.5
42
36.5
30
26
50.1
RAD
51
43
37
29
25
15
20
39.8
V2
SUP
53.4
47.4
41.1
33.3
25
19
20
43.4
RET
55
50
46
39
32
27
24
47.1
RAD
48
40
34
25.5
20
13
19
36.7
V3
SUP
49.5
44.2
37.9
30
19.7
15
19.8
40
RET
51.9
46.6
42.5
34.8
27.7
23.1
22.4
43.6
RAD
45
36.0
30.6
21.7
16.2
11.3
18.8
33.3
V4
SUP
45.5
41
34.3
25
15
14
19.8
36.4
RET
48.3
43.5
39
30
26
21.5
22
40.2
RAD
41.8
33.6
27.1
17
13.2
11
18.6
30.3
V5
SUP
42.5
38
31.3
21.9
11.8
11.7
19
33.4
RET
45.3
40.5
36
26.8
22.9
19.1
20
37.2
RAD
38.8
30.6
24.1
14
10.2
10
18.3
27.6
V6
SUP
RET
Speed not available for 230 V
RAD
Legend:
V
- Fan speed
SUP - Supply (dB re = 10
-12
W)
RET
- Return (dB re = 10
-12
W)
RAD - Radiated (dB re = 10
-12
W)
NOTE: The measurements are based on ISO standards and
are without supply and return octopus plenums.
The room sound level calculations must take account of the
sound absorption of the duct, the plenum, the room and
ceiling.
For a selected speed the sound level can vary within a
tolerance of ± 2 dB(A), depending on the available static
pressure.
42EM 2.2 and 3.2 - with three discharge spigots
Octave band frequency (Hz)
V
Type
125
250
500
1 K
2 K
4K
8K
dBA
V1
SUP
62.4
57.6
50.2
44.8
36.3
31.9
26
53.2
RET
64.4
59.9
54.2
48.8
43.8
38.3
33.5
56.5
RAD
55.2
49.3
42.6
36.3
32.2
23.1
23.5
45.5
V2
SUP
61.7
55.8
48.6
42.9
34.4
29.5
24.2
51.7
RET
62.8
58
52.7
47
41.8
35.8
30.8
54.8
RAD
53.9
47.6
41.2
34.5
30.3
20.4
21.8
43.9
V3
SUP
58.6
52.7
46
39.8
30.9
25.1
21.4
48.7
RET
60
55.3
50.2
44.2
38.5
32
27.2
52
RAD
52.2
44.5
38.7
31.5
27.1
16.7
20
41.4
V4
SUP
54.9
48.9
42.6
35.8
26.2
19.7
20.3
45
RET
56.8
51.5
47.1
40.4
34
27.6
24.5
48.5
RAD
49.2
41
35.4
27.5
22.4
13.1
19.1
38
V5
SUP
49.5
44.2
37.9
30
19.7
15
19.8
40
RET
51.9
46.6
42.5
34.8
27.7
23.1
22.4
43.6
RAD
45
36
30.6
21.7
16.2
11.3
18.8
33.3
V6
SUP
43.5
39
32.3
22.9
12.8
12.7
19.5
34.4
RET
46.3
41.5
37
27.8
23.9
20.1
20.9
38.2
RAD
39.8
31.6
25.1
14.9
11.2
10.8
18.6
28.5
42EM 2.3 and 3.3 - with four discharge spigots
Octave band frequency (Hz)
V
Type
125
250
500
1 K
2 K
4K
8K
dBA
V1
SUP
66.2
63
54.9
50.4
41.6
38.2
33.1
58.2
RET
67
63.8
57.4
52.6
48.2
43.4
39.2
60.1
RAD
57.9
53.6
45.5
40.3
35.3
28.1
29.2
49.1
V2
SUP
66
61.8
54.1
49.5
40.8
37.1
31.8
57.3
RET
66.6
63
56.6
51.8
47.3
42.3
37.9
59.3
RAD
57.1
52.6
44.6
39.4
34.4
26.9
27.8
48.1
V3
SUP
64.5
60.3
52.8
48
39.3
35.2
29.6
55.9
RET
65.4
61.3
55.4
50.5
45.9
40.5
35.8
57.9
RAD
55.9
50.9
43.4
38
33
24.9
25.8
46.7
V4
SUP
62.6
57.6
50.6
45.4
36.6
31.8
26.2
53.5
RET
64.1
58.9
53.6
48.4
43.6
37.6
32.9
55.9
RAD
54.2
48.4
41.3
35.5
30.4
21.4
22.9
44.4
V5
SUP
58.3
52.8
46.2
40.3
31.3
25
21.4
48.8
RET
59.4
53.9
49.3
43.4
37.9
31
26.8
51.1
RAD
49.9
43.6
37.3
30.7
25.9
16
19.6
4
V6
SUP
51.7
47.1
40.6
33.6
23.3
16.6
19.7
42.8
RET
54
47.9
43.8
36.8
30
23.9
23
45.1
RAD
44.3
38.1
31.8
24.1
18.1
11.5
18.6
34.3