Mitsubishi Electric Mr. Slim PEA Series Technical & Service Manual page 6

PEA-A18AA
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-A18AA
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 37
Middle
33
Low 29
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
<60Hz>
NOTCH LINE
SPL(dB)
High 39
Middle
35
Low 31
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
PEA-A18AA
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-A18AA
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
6
<60Hz>
NOTCH SPL(dB) LINE
High 38
Middle
34
Low 30
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
1000 2000 4000 8000
<60Hz>
NOTCH LINE
SPL(dB)
High 39
Middle
36
Low 32
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
1000 2000 4000 8000