Mitsubishi Electric PUHZ-SW75VAA-SC Service Manual page 11

4-3. NOISE CRITERION CURVES
PUHZ-SHW80VAA(-BS).UK
PUHZ-SHW80YAA(-BS).UK
90
80
70
60
50
40
30
20 APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
PUHZ-SW75VAA(-BS).UK
PUHZ-SW75YAA(-BS).UK
90
80
70
60
50
40
30
20
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
OCH651A
SPL(dB)
MODE LINE
COOLING 48
HEATING 45
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
SPL(dB)
MODE LINE
COOLING 45
HEATING 43
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
MICROPHONE
1 m
1.5 m
PUHZ-SHW112VAA(-BS).UK
PUHZ-SHW112YAA(-BS).UK
PUHZ-SW100VAA(-BS).UK
PUHZ-SW100YAA(-BS).UK
90
80
70
60
50
40
30
20 APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125
PUHZ-SW75VAA-SC.UK
PUHZ-SW75YAA-SC.UK
90
80
70
60
50
40
30
20
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125
UNIT
GROUND
11
SPL(dB)
MODE
COOLING
HEATING
250 500 1000 2000 4000
BAND CENTER FREQUENCIES, Hz
SPL(dB)
MODE
COOLING
HEATING
250 500 1000 2000 4000
BAND CENTER FREQUENCIES, Hz
LINE
49
47
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
8000
LINE
46
43
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
8000