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Sound Pressure Levels; Indoor Unit - Mitsubishi Electric SEZ-KD09NA4.TH Product Manual

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3-12. SOUND PRESSURE LEVELS

(1) Indoor Unit

INDOOR UNIT
SEZ-KD09NA4.TH
External static pressure:
0.02[in.WG](5Pa)
90
80
70
60
50
40
30
20
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63
125
250
BAND CENTER FREQUENCIES, Hz
SEZ-KD09NA4.TH
External static pressure:
0.14[in.WG](35Pa)
90
80
70
60
50
40
30
APPROXIMATE
20
THRESHOLD 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.
Due to continuing improvement, above specification may be subject to change without notice.
© 2014 Mitsubishi Electric US, Inc.
<60Hz>
NOTCH
SPL(dB)
LINE
High
29
Middle
25
Low
22
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500
1000
2000
4000
8000
<60Hz>
NOTCH
LINE
SPL(dB)
High
31
Middle
28
Low
24
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500
1000
2000
4000
8000
SEZ Ducted Heat Pump Systems (August 2014)
SEZ-KD09NA4.TH
External static pressure:
0.06[in.WG](15Pa)
90
80
70
60
50
40
30
20
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63
125
250
500
BAND CENTER FREQUENCIES, Hz
SEZ-KD09NA4.TH
External static pressure:
0.20[in.WG](50Pa)
90
80
70
60
50
40
30
APPROXIMATE
20
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63
125
250
500
BAND CENTER FREQUENCIES, Hz
<60Hz>
NOTCH
SPL(dB)
LINE
High
30
Middle
26
Low
23
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
1000
2000
4000
8000
<60Hz>
NOTCH
LINE
SPL(dB)
High
33
Middle
29
Low
25
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
1000
2000
4000
8000
SEZ-37

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