Sound Data; Sound Pressure Level - Acson AWM Series Technical Manual

Chilled water fan coil units
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Sound Data

Sound Data

Sound Pressure Level

Model
Speed
High
AWM07JW
Med
Low
High
AWM10JW
Med
Low
High
AWM15JW
Med
Low
High
AWM20JW
Med
Low
High
AWM25JW
Med
Low
Microphone position: 1m in front and 0.8m below the vertical centre line of the unit.
Model
Speed
High
ACK10CW
Med
Low
High
ACK15CW
Med
Low
High
ACK20CW
Med
Low
Microphone position: 1.4m below the face center of the air return of the unit.
1/1 Octave A-Weighted Sound Pressure (dBA), ref 20µPa Overall
125Hz
250Hz
500Hz
31
32
33
25
29
28
20
26
24
30
33
33
26
29
30
19
25
25
41
39
39
38
36
37
30
30
31
37
38
38
33
35
35
29
33
32
42
42
42
37
38
39
34
35
36
1/1 Octave A-Weighted Sound Pressure (dBA), ref 20µPa Overall
125Hz
250Hz
500Hz
44
45
40
40
38
34
37
32
27
48
48
44
42
42
36
39
36
28
52
51
46
44
43
39
41
39
35
1kHz
2kHz
4kHz
28
26
14
24
19
9
20
11
8
32
28
17
27
21
11
21
14
6
38
36
26
34
32
22
28
23
12
39
33
22
35
29
17
31
23
12
42
40
31
38
34
24
35
30
20
1kHz
2kHz
4kHz
36
26
19
28
19
9
20
14
7
39
31
27
30
22
13
20
15
6
41
34
31
33
26
18
28
22
11
Noise
(dBA)
Criteria
8kHz
6
34
28
5
29
22
6
25
18
8
35
31
7
30
25
6
25
19
14
42
38
10
39
33
7
32
26
11
42
38
8
38
34
7
34
30
21
46
42
13
42
37
9
39
34
Noise
(dBA)
Criteria
8kHz
10
42
35
7
35
29
7
29
21
15
45
39
7
38
31
6
30
23
19
48
41
8
40
33
7
36
30
25

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