Daikin FWW Series Technical Manual page 39

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 Power Level (dB, reference 1pW)
125 Hz
250 Hz
500 Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz
55
55
58
50
51
53
44
43
45
58
58
59
54
54
55
47
45
47
60
60
62
57
58
60
54
54
56
61
62
62
57
58
59
52
51
53
61
63
64
58
60
61
53
54
56
73
65
65
65
61
61
61
58
59
68
70
69
66
65
65
59
55
58
72
72
69
70
68
66
58
58
58
71
73
72
68
69
69
63
62
62
71
73
73
68
70
70
61
62
62
58
53
48
52
47
41
41
34
27
58
54
50
54
49
44
45
37
30
61
56
52
59
53
48
55
48
42
62
57
52
58
52
47
51
43
37
65
60
55
61
56
51
55
49
42
64
59
55
61
56
50
58
52
46
68
63
62
64
59
56
55
50
45
68
64
63
64
60
59
56
52
48
71
66
65
67
62
60
60
55
52
72
67
66
68
62
62
60
55
52
Overall
(dBA)
40
61
32
56
27
46
43
62
36
58
27
48
45
65
41
62
34
58
45
65
39
61
30
54
49
68
43
64
34
58
50
68
42
64
37
61
60
72
52
68
38
59
61
73
55
69
42
60
63
75
58
71
48
64
65
76
60
72
48
64
35

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