Sound power levels
Discharge
Measurement conditions:
Measurements taken in a room adjacent to the room containing the FWD, at the outlet of the rectangular duct (1.5 m
long) fixed to its discharge opening.
Fan
Unit
speed
1
FWD 08
2
3
1
FWD 10
2
3
1
FWD 12
2
3
1
FWD 14
2
3
1
FWD 20
2
3
Intake
Measurement conditions:
Measurements taken at the horizontal air intake.
Fan
Unit
speed
1
FWD 08
2
3
1
FWD 10
2
3
1
FWD 12
2
3
1
FWD 14
2
3
1
FWD 20
2
3
RLC-SVU007D-ES
UNT-PRC002-GB
Power level in dB(A), per Hz frequency band
125
250
500
55
50
42
57
54
47
58
57
50
57
51
45
58
54
48
60
58
50
57
51
45
58
54
48
60
58
50
56
62
50
61
66
55
63
69
58
57
63
51
61
66
55
63
69
58
Power level in dB(A), per Hz frequency band
125
250
500
56
55
55
63
62
60
66
65
63
62
58
55
66
63
60
70
67
63
62
58
55
66
63
60
70
67
63
66
65
65
73
72
69
78
76
73
68
72
64
76
76
68
78
79
71
1000
2000
4000
37
37
31
40
30
38
42
32
40
42
34
33
45
38
39
48
40
42
42
34
33
45
38
39
48
40
42
48
39
38
53
47
46
56
50
50
49
40
39
53
47
46
56
50
50
1000
2000
4000
53
46
45
60
53
53
62
56
55
58
51
48
62
56
55
65
59
59
58
51
48
62
56
55
65
59
59
65
57
50
71
64
59
75
69
64
64
56
52
71
65
61
74
69
66
Notas
Overall power
8000
dB(A)
30
46
40
50
43
53
28
48
35
51
39
54
28
48
35
51
39
54
36
56
45
60
49
63
37
57
45
60
49
63
Overall power
8000
dB(A)
42
57
53
64
57
67
44
61
52
66
57
69
44
61
52
66
57
69
46
68
57
74
63
78
50
69
61
75
66
78
21
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