4noise criteria curves, Muz-gb50va – MITSUBISHI ELECTRIC MUZ-GB50VA User Manual
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4
NOISE CRITERIA CURVES
OUTDOOR UNIT
MICROPHONE
1m
COOLING
FUNCTION
SPL(dB(A))
LINE
High
FAN SPEED
HEATING
52
55
90
80
70
60
50
40
30
20
10
63
125
250
500
1000
2000
4000
8000
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
BAND CENTER FREQUENCIES, Hz
Test conditions,
Cooling : Dry-bulb temperature 35
:
Wet-bulb temperature 24
:
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
Heating : Dry-bulb temperature 7
:
Wet-bulb temperature 6
:
OCT
A
VE BAND SOUND PRESSURE LEVEL, 0dB=20
µ
Pa
MUZ-GB50VA
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