Noise Level; Indoor Units - Mitsubishi Heavy Industries FDT125VNPWVH Data Book

4. NOISE LEVEL

Notes(1) The data are based on the following conditions.
Ambient air temperature: Indoor unit 27℃WB. Outdoor unit 35℃DB.
(2) The data in the chart are measured in an anechoic room.
(3) The noise levels measured in the field are usually higher than the data because of reflection.

(1) Indoor units

(a) Ceiling cassette-4 way type (FDT)
( i ) Sound power level
Model FDT60VH Model FDT125VH
Noise level Cooling : 58 dB (A)
Heating : 60 dB (A)
Cooling Heating
80 80
70 70
60 60
50 50
40 40
30 30
500 1000 2000 4000 8000 63 125 250
Mid octave band frequency (Hz)
Model FDT60VH
Notes(1) The data are based on the following conditions.
Noise level 44 dB(A) at P-Hi
( ii ) Sound pressure level
Ambient air temperature: Indoor unit 27℃WB. Outdoor unit 35℃DB.
34 dB(A) at Hi
(2) The data in the chart are measured in an anechoic room.
30 dB(A) at Me
(3) The noise levels measured in the field are usually higher than the data because of reflection.
23 dB(A) at Lo
Cooling
60 60
50 50
Model FDT60VH
40 40
Noise level Cooling : 58 dB (A)
30 30
20 20
80
10 70 10
1000 2000 4000 8000 63 125 250
Mid octave band frequency (Hz)
60
Model FDT71VH
50
Noise level 46 dB (A) at P-Hi
40
34 dB (A) at Hi
31 dB (A) at Me
30
63 125 250
26 dB (A) at Lo
Mid octave band frequency (Hz)
Cooling
60 60
50 50
40 40
Model FDT60VH
30 30
Noise level 44 dB(A) at P-Hi
20
20
10
10
1000 2000 4000 8000 63 125 250
Cooling
Mid octave band frequency (Hz)
60
50
40
30
20
10
63 125 250
Mid octave band frequency (Hz)
Model FDT71VH
Noise level 46 dB (A) at P-Hi
Uni
t
1.5m
Mike (in front & below unit)
Noise level Cooling : 63 dB (A)
Heating : 64 dB (A)
Heating : 59 dB (A)
Cooling Heating Cooling
80 80
70 70
60 60
50 50
40 40
30 30
500 63 1000 125 2000 250 4000 500 1000 2000
8000
Mid octave band frequency (Hz)
34 dB(A) at Hi
30 dB(A) at Me
27 dB(A) at Lo
60
50
40
Model FDT125VH
Heating : 59 dB (A) 30
Noise level 48 dB (A) at P-Hi
Cooling Heating
41 dB (A) at Hi
20
80
39 dB (A) at Me
10 70
31 dB (A) at Lo
500 1000 2000 4000 8000
Cooling
60
60
50
50
40
40 34 dB (A) at Hi
31 dB (A) at Me
30
30 500 1000 2000 4000
8000
26 dB (A) at Lo
20
60
10
63 125 250 500 1000 2000
50
Mid octave band frequency (Hz)
40
30
34 dB(A) at Hi
20
30 dB(A) at Me
10
27 dB(A) at Lo
500 1000 2000 4000 8000
60
50
40
30
20
10
500 1000 2000 4000 8000
Measured based on JIS B 8616
Mike position
Model FDT71VH
Noise level Cooling : 59 dB (A)
Heating : 60 dB (A)
Heating Cooling
80 80
70 70
60 60
50 50
40 40
30 30
4000 8000 63 125 250 500 1000 2000
Mid octave band frequency (Hz)
Noise level 44 dB(A) at P-Hi
34 dB(A) at Hi
30 dB(A) at Me
23 dB(A) at Lo
Measured based on JIS B 8616
Heating
Mike position
60
50
Model FDT71VH
40
Noise level Cooling : 59 dB (A)
Heating : 60 dB (A)
30
Cooling
20
80
10 70
63 125 250 500 1000 2000
Mid octave band frequency (Hz)
60
60
50
50
Noise level 46 dB (A) at P-Hi
40
40
34 dB (A) at Hi
31 dB (A) at Me
30
63 30 125 250 500 1000 2000
26 dB (A) at Lo
Mid octave band frequency (Hz)
Heating
20
60
10
4000 8000
50
40
30
Noise level 44 dB(A) at P-Hi
34 dB(A) at Hi
20
30 dB(A) at Me
10 23 dB(A) at Lo
63 125 250 500 1000 2000
Heating
Mid octave band frequency (Hz)
60
50
40
30
20
10
63 125 250 500 1000 2000
Mid octave band frequency (Hz)
- 20 -
Noise level 46 dB (A) at P-Hi
Uni
1.5m
Mike (in front & below unit)
Model FDT125VH
Noise level Cooling : 63 dB (A)
Heating
80 80
70 70
60 60
50 50
40 40
30 30
4000 8000 63 125 250
Mid octave band frequency (Hz)
Uni
1.5m
60
Mike (in front & below unit)
50
Model FDT125VH
40
Noise level Cooling : 63 dB (A)
30
Noise level 48 dB (A) at P-Hi
Heating
41 dB (A) at Hi
20
80 80
38 dB (A) at Me
10 70 70
31 dB (A) at Lo
4000 8000
Heating
60 60
60
50 50
50
40 40
40
30 30
4000 30 8000 63 125 250
Mid octave band frequency (Hz)
20
60
10
63 125 250 500 1000 2000
50
Mid octave band frequency (Hz)
40
30
20
10
4000 8000
60
50
40
30
20
10
4000 8000
'22 • PAC-DB-409
t
Heating : 64 dB (A)
Cooling Heating
80
70
60
50
40
30
500 1000 2000 4000 8000
t
Heating : 64 dB (A)
Cooling Heating
80
70
60
60
50
50
40
40
30
500 30 1000 2000 4000 8000
20
10
4000 8000