5
DATA
3
1.5m
1m
MICROPHONE
UNIT
GROUND
90
80
70
60
50
40
30
20
10
63
125
250
500
1000
2000
4000
8000
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
BAND CENTER FREQUENCIES, Hz
PUHZ-W90VHA
COOLING
MODE
HEATING
49
SPL(dB)
49
LINE
OCT
A
VE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 bar)
3-1. NOISE CRITERION CURVES
Summary of Contents for PUHZ-W90VHA
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