3
1
10
• Ventilation • Heat reclaim ventilation
29
• Heat reclaim ventilation • VAM-FA/FB
10
Sound data
10 - 1 Sound Power Spectrum
VAM2000FB
4D082470
Power level data (in case of Total Heat Exchange mode)
(dB) (dBA)
Unit model
name
Hz
Fan speed
63
125
250
500
1000 2000 4000 8000 Total
VAM2000FB
U-H
65.0
61.5
57.0
54.0
53.0
45.0
39.5
32.5
57
H
64.0
60.0
55.0
53.0
51.0
41.5
34.5
30.5
55
L
62.0
58.0
51.5
50.0
48.5
40.5
32.5
30.5
53
NOTES
1. dBA = A-weighted sound power level (A-scale according to IEC).
2. Reference acoustic intensity 0dB = 10E-6μW/m
2
3. Measured according to ISO 3744.
4. The operating sound level may become higher than this value depending on the operating
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5. The power IeveIs have been caIcuIated in the assumption that the measuring point is
immediately under the source of operating sound.