Mitsubishi Electric Mr. Slim PEA Series Technical & Service Manual page 5

SOUND CRITERION CURVES
PEA-A12AA
External static pressure :
0.020[in.WG](5Pa)
90
80
70
60
50
40
30
APPROXIMATE
20
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
PEA-A12AA
External static pressure :
0.140[in.WG](35Pa)
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.
<60Hz>
NOTCH SPL(dB) LINE
High 33
Middle
28
Low 23
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
<60Hz>
NOTCH LINE
SPL(dB)
High 34
Middle
29
Low 24
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
5
PEA-A12AA
External static pressure :
0.060[in.WG](15Pa)
90
80
70
60
50
40
30
APPROXIMATE
20
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250 500
BAND CENTER FREQUENCIES, Hz
PEA-A12AA
External static pressure :
0.200[in.WG](50Pa)
90
80
70
60
50
40
30
APPROXIMATE
20
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250 500
BAND CENTER FREQUENCIES, Hz
<60Hz>
NOTCH SPL(dB) LINE
High 33
Middle
28
Low 23
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
1000 2000 4000 8000
<60Hz>
NOTCH LINE
SPL(dB)
High 35
Middle
31
Low 25
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
1000 2000 4000 8000