Noise Level - Mitsubishi Heavy Industries SRK25GZ-L1 Handbook

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
Silent panel
Unit
(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
Model FDR208-A
Noise level 43 dB (A) at HIGH
37 dB (A) at LOW
70
60
50
40
30
20
63 125 250 500 1000
Mid octave band frequency (Hz)
Model FDR408-A
Noise level 45 dB (A) at HIGH
38 dB (A) at LOW
70
60
50
40
30
20
63 125 250 500 1000
Mid octave band frequency (Hz)
(b) Canvas panel
Model FDR208-A
Noise level 44 dB (A) at HIGH
38 dB (A) at LOW
70
60
50
40
30
20
63 125 250 500 1000
Mid octave band frequency (Hz)
Canvas panel
Unit
Model FDR258-A
Noise level 43 dB (A) at HIGH
70 70
60 60
50 50
40 40
30 30
20 20
2000 4000 8000 63 125
Mid octave band frequency (Hz)
Model
Noise level 46 dB (A) at HIGH
70 70
60 60
50 50
40 40
30 30
20 20
2000 4000 8000 63 125
Mid octave band frequency (Hz)
Model FDR258-A
Noise level 44 dB (A) at HIGH
70 70
60 60
50 50
40 40
30 30
20 20
2000 4000 8000 63 125
Mid octave band frequency (Hz)
Outdoor unit
Measured based on JIS B 8616
Mike position: at highest noise level
Distance from front side
Height
37 dB (A) at LOW
70
60
50
40
30
20
250 500 1000 2000 4000 8000
FDR508-A
39 dB (A) at LOW
70
60
50
40
30
20
250 500 1000 2000 4000 8000
38 dB (A) at LOW
70
60
50
40
30
20
250 500 1000 2000 4000 8000
FDR-H
in position as below
1 m
1 m
Model FDR308-A
Noise level 44 dB (A) at HIGH
38 dB (A) at LOW
70
60
50
40
30
20
63 125 250 500 1000 2000 4000
Mid octave band frequency (Hz)
Model FDR308-A
Noise level 45 dB (A) at HIGH
39 dB (A) at LOW
70
60
50
40
30
20
63 125 250 500 1000 2000 4000
Mid octave band frequency (Hz)
70
60
50
40
30
20
8000
70
60
50
40
30
20
8000
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