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4
NOISE CRITERIA CURVES
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
OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR
BAND CENTER FREQUENCIES, Hz
Test conditions,
Cooling : Dry-bulb temperature 27: Wet-bulb temperature 19:
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
COOLING
FUNCTION
43
43
SPL(dB(A))
LINE
Super High
FAN SPEED
HEATING
Heating : Dry-bulb temperature 20: Wet-bulb temperature 15:
MSZ-GA22VA -
MSZ-GA25VA -
E1
E1
INDOORUNIT
WALL
MICROPHONE
0.8m
1m
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
OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR
BAND CENTER FREQUENCIES, Hz
Test conditions,
Cooling : Dry-bulb temperature 27: Wet-bulb temperature 19:
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
COOLING
FUNCTION
43
43
SPL(dB(A))
LINE
Super High
FAN SPEED
HEATING
Heating : Dry-bulb temperature 20: Wet-bulb temperature 15:
MSZ-GA35VA -
E1
OB378_--1qxp 05.1.17 12:55 Page 6