Mitsubishi PLA-A12BA Technical Data Book page 96

PEAD-A42AA
External static pressure : 50Pa
90
80
70
60
50
40
30
APPROXIMATE
20
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
PEAD-A42AA
External static pressure : 100Pa
90
80
70
60
50
40
30
APPROXIMATE
20
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
NOTE: The sound level is measured in an anechoic room where echoes are few, when compressor stops. The sound
may be bigger than displayed level under actual installation condition by surrounding echoes. The sound level
can be higher by about 2 dB than the displayed level during cooling and heating operation.
96
<60Hz>
NOTCH LINE
SPL(dB)
High 44.0
Middle 40.0
Low 36.0
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
<60Hz>
NOTCH SPL(dB) LINE
High 46.0
Middle 43.0
Low
37.0
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
PEAD-A42AA
External static pressure : 70Pa
90
80
70
60
50
40
30
APPROXIMATE
20
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
PEAD-A42AA
External static pressure : 150Pa
90
80
70
60
50
40
30
APPROXIMATE
20
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
<60Hz>
NOTCH LINE
SPL(dB)
High 45.0
Middle 41.0
Low 36.0
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
<60Hz>
NOTCH SPL(dB) LINE
High 47.0
Middle 44.0
Low
39.0
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000