Mitsubishi Electric SEZ-KD25VL, Service Manual

Page: 12 / 44

10
90
80
70
60
50
40
30
20
10
63 125 250 500 1000 2000 4000 8000
APPROXIMATE
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCT
A
VE B
AND SOUND PRESSURE LEVEL,
dB (0 dB = 0.0002
µ
bar)
BAND CENTER FREQUENCIES, Hz
SEZ-KD50VA(L)
External static pressure: 15Pa
High
Middle
37
SPL(dB)
34
Low
30
LINE
<50/60Hz>
NOTCH
90
80
70
60
50
40
30
20
10
63 125 250 500 1000 2000 4000 8000
APPROXIMATE
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCT
A
VE B
AND SOUND PRESSURE LEVEL,
dB (0 dB = 0.0002
µ
bar)
BAND CENTER FREQUENCIES, Hz
SEZ-KD50VA(L)
External static pressure: 5Pa
High
Middle
36
SPL(dB)
33
Low
29
LINE
<50/60Hz>
NOTCH
90
80
70
60
50
40
30
20
10
63 125 250 500 1000 2000 4000 8000
APPROXIMATE
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCT
A
VE B
AND SOUND PRESSURE LEVEL,
dB (0 dB = 0.0002
µ
bar)
BAND CENTER FREQUENCIES, Hz
SEZ-KD50VA(L)
External static pressure: 50Pa
High
Middle
39
SPL(dB)
36
Low 32
LINE
<50/60Hz>
NOTCH
90
80
70
60
50
40
30
20
10
63 125 250 500 1000 2000 4000 8000
APPROXIMATE
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCT
A
VE B
AND SOUND PRESSURE LEVEL,
dB (0 dB = 0.0002
µ
bar)
BAND CENTER FREQUENCIES, Hz
SEZ-KD50VA(L)
External static pressure: 35Pa
High
Middle
38
SPL(dB)
35
Low 31
LINE
<50/60Hz>
NOTCH
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.
HWE0711C.qx 12.10.10 14:09 Page 10