Daikin FWW Series Technical Manual page 27

Chilled water fan coil units
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Sound Data
Model
Speed
(MSP)
High
FWC03G
Med
Low
High
FWC04G
Med
Low
High
FWC06G
Med
Low
High
FWC08G
Med
Low
High
FWC10G
Med
Low
High
FWC12G
Med
Low
High
FWC14G
Med
Low
High
FWC16G
Med
Low
High
FWC18G
Med
Low
High
FWC20G
Med
Low
Microphone position: 1.5m below the centre of the unit.
(Tested with 2m length duct at the air discharge outlet and 1m length of air return duct).
1/1 Octave Sound Pressure Level (dBA, reference 20mPa)
125 Hz
250 Hz
500 Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz
46
36
33
42
30
27
35
21
16
40
38
37
37
34
31
27
25
22
47
44
40
44
40
37
38
34
31
49
45
42
45
41
36
39
33
30
52
47
42
49
43
39
42
37
32
49
46
43
45
42
41
43
40
36
54
49
46
51
45
42
43
36
36
57
51
46
54
48
43
48
40
37
58
52
46
55
48
43
52
41
36
58
53
47
56
50
44
50
41
36
31
24
16
24
15
9
13
8
8
32
28
20
26
20
13
16
9
9
36
31
22
32
26
16
26
18
10
37
33
27
31
26
19
23
16
12
38
33
26
34
29
22
27
21
12
40
34
26
35
29
19
33
25
14
41
38
32
38
34
27
29
23
15
42
37
32
38
33
27
30
25
16
43
42
36
38
36
32
32
30
24
45
40
35
40
35
30
32
27
19
Overall
Noise
Criteria
(dBA)
10
36
30
9
30
23
7
22
0
15
38
32
10
32
25
9
23
0
13
42
35
10
38
32
10
32
25
18
44
37
11
38
31
9
31
24
19
45
37
13
41
34
9
34
26
18
45
39
11
41
36
10
38
32
26
48
41
20
44
37
8
36
31
29
49
41
22
45
38
10
38
32
33
50
43
28
46
39
18
40
35
32
51
44
27
47
40
14
39
33
23

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