Sound Data; Sound Pressure Level - Daikin FWMT Series Technical Manual

Chilled water fan coil units
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Sound Data

Sound Pressure Level

Model
Speed
High
FWMT02C
Med
Low
High
FWMT03C
Med
Low
High
FWMT04C
Med
Low
High
FWMT05C
Med
Low
High
FWMT06C
Med
Low
Microphone position: 1m in front and 0.8m below the vertical centre line of the unit.
Model
Speed
High
FWMJC6B
Med
Low
High
FWMJC8B
Med
Low
High
*FWMJC9B
Med
Low
High
*FWMJC11B
Med
Low
High
*FWMJC13B
Med
Low
Microphone position: 1.4m/*1.5m 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
43
42
40
40
38
35
34
32
48
47
45
44
42
42
39
37
36
49
48
46
44
44
42
41
39
37
51
49
49
48
46
47
44
42
43
53
54
50
49
48
47
46
45
44
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
35
29
23
30
23
16
23
15
10
39
34
28
34
28
21
26
19
10
42
37
35
36
32
27
31
26
17
45
37
36
40
33
31
35
28
23
47
39
38
43
36
35
39
32
30
Sound Data
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
15
42
37
14
38
33
14
32
26
17
46
40
10
42
37
6
35
31
22
48
41
14
43
37
8
38
32
24
50
45
18
47
43
10
43
38
28
52
46
25
49
43
22
45
39
10

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