60
ACOUSTICAL PERFORMANCE
*the generated sound is not higher than the background noise
Supply air duct
Control voltage (V)
Airflow (l/s)
4
42
5
54
6
63
7
77
8
95
10
120
Octave band,
centre frequency
(Hz)
LW, dB
LWA, dB(A), in the duct
63
125
250
500
1 K
2 k
4 k
8 k
50.5
53.9
45.2
43
39
31.6
29.9
30.9
56
45.1
59.6
57.6
50.2
46.5
45.5
37.3
34.2
31.5
62
50
62.2
61.6
54.4
50.2
51.2
42.6
39.4
34.4
66
54.7
64.4
64.4
58.4
53.9
54.8
47.5
44.2
38.8
68
58.4
68.9
67.6
62.1
57.6
57.2
52.2
48.2
42.9
72
61.7
73.4
72.6
68
63.6
60.8
59.4
54.8
49
77
67.2
Extract air duct
Control voltage (V)
Airflow (l/s)
4
38
5
49
6
64
7
77
8
90
10
112
Octave band,
centre frequency
(Hz)
LW, dB
LWA, dB(A), in the duct
63
125
250
500
1 k
2 k
4 k
8 k
47.6
46.5
41.9
36.3
34.7
27
28.3
30.8
51
40.3
49.2
51.5
45.2
39.9
41.2
29.3
28.7
30.8
54
44.6
50.5
55.6
48.7
42.7
45.3
32.6
29.6
30.8
58
48.2
59.3
59.2
52.2
46.4
48.1
36.8
31.9
30.9
63
51.4
62.3
62.1
54.9
49.3
49.4
40.3
34.4
31.1
66
53.6
66.9
65.9
59.6
54.4
53
46.7
39.8
32.4
70
58
Circulation air duct
Control voltage (V)
Airflow (l/s)
4
5
6
7
8
10
Octave band,
centre frequency
(Hz)
LW, dB
LWA, dB(A), in the duct
63
125
250
500
1 k
2 k
4 k
8 k
65.9
51.8
42.6
34.5
35.4
21.7
*
*
66
43,2
63.7
52.6
44.9
39.3
41
27.9
22.7
*
64
45.1
73.9
59
48,5
42.5
46.1
33
28.4
*
74
48.2
71
60.3
52.1
45.8
50.2
37.7
33.3
24.3
71
53.3
69.1
63.6
56.2
49
53.1
41.7
37.7
28.5
70
56
71.5
68.5
60.9
54.4
57
48.2
44.2
35.2
74
60.5
Sound level emitted to the
surroundings
Control voltage (V)
Airflow (l/s)
4
45
5
50
6
66
7
82
8
95
10
121
Octave band,
centre frequency
(Hz)
LWA, dB(A)
63
125
250
500
1 k
2 k
4 k
8 k
*
*
*
*
*
*
*
*
*
48.7
44.5
33.5
28.1
20.7
*
*
*
28.2
33.2
47.6
37.3
31.6
24.7
*
*
*
31.1
35.3
52
41.7
35.5
28.2
23
20
*
35.4
36.7
53.1
44.4
38.5
30.8
25.1
23
15
37.5
47.8
58.2
48.8
43.6
34.9
30.9
28.9
21.3
42.4
Summary of Contents for ILTO X100 Premium
Page 63: ......
