3
1
10
• Ventilation • Heat reclaim ventilation
27
• Heat reclaim ventilation • VAM-FA/FB
10
Sound data
10 - 1 Sound Power Spectrum
VAM150FA
4D036765
NOTES
1. Operation sound is measured in an anechoic chamber.
2. The operating sound level may become greater than this value depending on the
operating conditions, reflected sound and peripheral noise.
3. Operation sound differs with operation and ambient conditions.
4. The power IeveIs have been caIcuIated on the assumption that the measuring point were
right under the source of operating sound.
Power level data (in case of Total Heat Exchange mode)
(dB)
Model
Power
supply
Hz
NOTCH
63
125
250
500
1000 2000 4000 8000
VAM150FA
50Hz
220V
U-H
50
48
46
40.5
38.5
34
25.5
27
H
47
47
42
40
37.5
27.5
25
26.5
L
44
42
38.5
35.5
29.5
21.5
22.5
23.5
230V
U-H
51
49
47
41.5
39.5
35
27
28.5
H
47.5
47.5
42.5
39.5
37
28.5
26
27.5
L
44
42
38.5
36
29.5
21.5
22.5
23.5
240V
U-H
53
50.5
46.5
42
40
36.5
30
31.5
H
49.5
49.5
45
42
39.5
31.5
29.5
31.5
L
44.5
42.5
39.5
36
30
22.5
23.5
25
60Hz 220V
U-H
52
51
46
42.5
39.5
33.5
24.5
27
H
49
49
44.5
40.5
37
29.5
26
27.5
L
41
42
39
35.5
29
21
21.5
23.5
VAM250FA
4D036766
NOTES
1. Operation sound is measured in an anechoic chamber.
2. The operating sound level may become greater than this value depending on the
operating conditions, reflected sound and peripheral noise.
3. Operation sound differs with operation and ambient conditions.
4. The power IeveIs have been caIcuIated on the assumption that the measuring point were
right under the source of operating sound.
Power level data (in case of Total Heat Exchange mode)
(dB)
Model
Power
supply
Hz
NOTCH
63
125
250
500
1000 2000 4000 8000
VAM250FA
50Hz
220V
U-H
51.5
51
48
42
38.5
33.5
25.5
25.5
H
49.5
48.5
46
40
36.5
29
22
23.5
L
44.5
44
42
34
28
19.5
21
22
230V
U-H
52
51.5
47
43
39.5
34
27
27
H
50.5
49.5
47
41
37.5
30
24.5
26
L
44.5
44.5
42
35
28
19.5
21
22
240V
U-H
51.5
52.5
48
44.5
41
36
29
29.5
H
52
52
48.8
40.5
37
32.5
28
30
L
45
44.5
43
34.5
28.5
21
22.5
23.5
60Hz 220V
U-H
51.5
52
49
43.5
39.5
34
25.5
25.5
H
49
50
45.5
40
38
30
24.5
26
L
44.5
41
39
34.5
30.5
20
20
22
VAM350FB
4D082464
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
VAM350FB
U-H
57.5
53.0
49.5
45.0
42.5
39.5
31.5
25.5
48
H
58.5
51.0
46.5
43.5
40.5
35.0
26.0
26.5
46
L
58.5
45.5
41.5
38.0
33.5
24.0
25.0
27.0
41
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
FRQGLWLRQVUHÀHFWHGVRXQGDQGSHULSKHUDOQRLVH
5. The power IeveIs have been caIcuIated in the assumption that the measuring point is
immediately under the source of operating sound.
VAM500FB
4D082465
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
VAM500FB
U-H
57.0
54.0
51.0
48.0
45.0
37.5
27.5
25.5
50
H
54.0
51.5
49.0
46.0
42.5
36.0
26.5
26.0
48
L
50.5
47.5
44.0
39.0
33.5
25.0
23.0
24.5
41
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
FRQGLWLRQVUHÀHFWHGVRXQGDQGSHULSKHUDOQRLVH
5. The power IeveIs have been caIcuIated in the assumption that the measuring point is
immediately under the source of operating sound.
