Daikin FWW Series Technical Manual page 30

Chilled water fan coil units
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Model
Speed
High
Med
FWC03C
Low
High
FWC04C
Med
Low
High
FWC06C
Med
Low
High
FWC07C
Med
Low
High
FWC09C
Med
Low
High
FWC12C
Med
Low
High
FWC14C
Med
Low
High
FWC16C
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).
26
1/1 Octave A-Weighted Sound Pressure (dBA), ref 20µPa Overall
125Hz
250Hz
500Hz
43
35
35
43
34
34
42
31
31
46
40
40
45
38
38
40
33
33
47
41
43
47
41
41
47
39
39
48
41
40
47
39
39
44
35
35
50
45
43
45
40
40
42
36
37
54
47
47
49
42
43
45
39
41
54
49
49
53
47
46
51
45
44
55
49
49
53
46
47
51
43
44
1kHz
2kHz
4kHz
30
26
18
28
25
17
27
22
14
33
29
21
31
27
18
26
21
11
35
31
24
34
31
23
33
29
21
35
31
24
34
29
22
30
25
17
42
37
31
38
32
26
33
28
22
45
39
35
41
35
31
37
30
26
48
43
37
47
40
35
44
36
32
50
44
37
47
39
34
43
35
30
Sound Data
Noise
(dBA)
Criteria
8kHz
13
36
30
12
35
29
9
33
25
17
40
35
14
38
33
9
33
28
19
42
38
18
41
36
16
40
34
19
41
35
17
40
34
12
36
30
26
46
41
20
42
37
15
38
32
29
49
44
24
45
40
18
41
36
32
52
47
29
50
46
26
47
43
33
53
49
28
50
46
24
47
42

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