Mitsubishi Electric PUZ-ZM60VHA2, Service Manual

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16
OCH771
5-3. NOISE CRITERION CURVES
90
80
70
60
50
40
30
20
10 OCT
AVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)
63 125 250 500 1000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
COOLING
MODE
HEATING
47
SPL(dB)
49
LINE
90
80
70
60
50
40
30
20
10
OCT
AVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)
63 125 250 500 1000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
COOLING
MODE
HEATING
49
SPL(dB)
51
LINE
PUZ-ZM60VHA2(-ET/-ER).UK
PUZ-ZM71VHA2(-ET/-ER).UK
PUZ-ZM125VKA2(-ET/-ER).UK
PUZ-ZM140VKA2(-ET/-ER).UK
PUZ-ZM125YKA2(-ET/-ER).UK
PUZ-ZM140YKA2(-ET/-ER).UK
PUZ-ZM100VKA2(-ET/-ER).UK
PUZ-ZM100YKA2(-ET/-ER).UK
90
80
70
60
50
40
30
20
10 OCT
AVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)
63 125 250 500 1000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
COOLING
MODE
HEATING
50
SPL(dB)
52
LINE