Mitsubishi Heavy Industries SRRM40HENG-L, Handbook, Page: 563 / 1106

561
FDR-H
14.2.8 Noise level
Note (1) The data are based on the following conditions.
Ambient air temperature:
Indoor unit 27˚C DB, 19˚C WB.
Outdoor unit 35˚C DB.
Indoor unit
Measured based on JIS B 8616
Mike position as below
(2) The data in the chart are measeured in an unechonic room.
(3) The noise levels measured in the field are usually higher than the data because of reflection.
(1) Indoor unit
(a) Silent panel
Outdoor unit
Measured based on JIS B 8616
Mike position: at highest noise level
in position as below
Distance from front side 1 m
Height 1 m
Model FDR208-A
Noise level 43 dB (A) at HIGH
37 dB (A) at LOW
Model FDR258-A
Noise level 43 dB (A) at HIGH
37 dB (A) at LOW
Model FDR308-A
Noise level 44 dB (A) at HIGH
38 dB (A) at LOW
(b) Canvas panel
Mid octave band frequency (Hz)
N30
N20
N50
N60
N70
63 125 250 500 1000 2000 4000 8000
20
30
40
50
60
70
20
30
40
50
60
70
N40
Sound pressure level (Standard 0.0002
µ
bar) dB
Mid octave band frequency (Hz)
N30
N20
N50
N60
N70
63 125 250 500 1000 2000 4000 8000
20
30
40
50
60
70
20
30
40
50
60
70
N40
Sound pressure level (Standard 0.0002
µ
bar) dB
Mid octave band frequency (Hz)
N30
N20
N50
N60
N70
63 125 250 500 1000 2000 4000 8000
20
30
40
50
60
70
20
30
40
50
60
70
N40
Sound pressure level (Standard 0.0002
µ
bar) dB
Model FDR408-A
Noise level 45 dB (A) at HIGH
38 dB (A) at LOW
Model FDR508-A
Noise level 46 dB (A) at HIGH
39 dB (A) at LOW
Mid octave band frequency (Hz)
N30
N20
N50
N60
N70
63 125 250 500 1000 2000 4000 8000
20
30
40
50
60
70
20
30
40
50
60
70
N40
Sound pressure level (Standard 0.0002
µ
bar) dB
Mid octave band frequency (Hz)
N30
N20
N50
N60
N70
63 125 250 500 1000 2000 4000 8000
20
30
40
50
60
70
20
30
40
50
60
70
N40
Sound pressure level (Standard 0.0002
µ
bar) dB
Model FDR208-A
Noise level 44 dB (A) at HIGH
38 dB (A) at LOW
Model FDR258-A
Noise level 44 dB (A) at HIGH
38 dB (A) at LOW
Model FDR308-A
Noise level 45 dB (A) at HIGH
39 dB (A) at LOW
Mid octave band frequency (Hz)
N30
N20
N50
N60
N70
63 125 250 500 1000 2000 4000 8000
20
30
40
50
60
70
20
30
40
50
60
70
N40
Sound pressure level (Standard 0.0002
µ
bar) dB
Mid octave band frequency (Hz)
N30
N20
N50
N60
N70
63 125 250 500 1000 2000 4000 8000
20
30
40
50
60
70
20
30
40
50
60
70
N40
Sound pressure level (Standard 0.0002
µ
bar) dB
Mid octave band frequency (Hz)
N30
N20
N50
N60
N70
63 125 250 500 1000 2000 4000 8000
20
30
40
50
60
70
20
30
40
50
60
70
N40
Sound pressure level (Standard 0.0002
µ
bar) dB
Unit Unit
Silent panel Canvas panel
1.5m
1.5m