Mitsubishi Electric SEZ-KD25VAQ Technical & Service Manual page 13

SEZ-KD71VAQ
External static pressure: 5Pa
90
80
70
60
50
40
30
APPROXIMATE
20
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
SEZ-KD71VAQ
External static pressure: 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 condi-
tion by surrounding echoes. The sound level can be higher
by about 2 dB than the displayed level during cooling and
heating operation.
<50/60Hz>
NOTCH SPL(dB) LINE
High 39
Middle
34
Low 29
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
<50/60Hz>
NOTCH LINE
SPL(dB)
High 41
Middle
36
Low
31
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
SEZ-KD71VAQ
External static pressure: 15Pa
90
80
70
60
50
40
30
APPROXIMATE
20
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125
SEZ-KD71VAQ
External static pressure: 50Pa
90
80
70
60
50
40
30
APPROXIMATE
20
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125
Measurement location
11
NOTCH SPL(dB)
High 40
Middle
35
Low 30
250 500 1000 2000 4000
BAND CENTER FREQUENCIES, Hz
NOTCH
SPL(dB)
High 42
Middle
37
Low
32
250 500 1000 2000 4000
BAND CENTER FREQUENCIES, Hz
Aux. duct
test unit
2m
<50/60Hz>
LINE
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
8000
<50/60Hz>
LINE
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
8000
1m