Noise Criteria Curves - Mitsubishi Electric MSZ-GA35VA Service Manual

4

NOISE CRITERIA CURVES

MSZ-GA22VA -
E1
MSZ-GA25VA -
E1
FAN SPEED
Super High
Test conditions,
Cooling : Dry-bulb temperature 27: Wet-bulb temperature 19:
Heating : Dry-bulb temperature 20: Wet-bulb temperature 15:
90
80
70
60
50
40
30
APPROXIMATE
20
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
FUNCTION SPL(dB(A)) LINE
COOLING 43
HEATING
43
500 1000 2000 4000 8000
MSZ-GA35VA -
Test conditions,
Cooling : Dry-bulb temperature 27: Wet-bulb temperature 19:
Heating : Dry-bulb temperature 20: Wet-bulb temperature 15:
90
80
70
NC-70
60
NC-60
50
NC-50
40
NC-40
30
NC-30
APPROXIMATE
20
THRESHOLD OF
HEARING FOR
NC-20
CONTINUOUS
NOISE
10
63 125
0.8m
MICROPHONE
6
E1
FAN SPEED FUNCTION SPL(dB(A))
43
COOLING
Super High
HEATING 43
250 500 1000 2000
BAND CENTER FREQUENCIES, Hz
INDOORUNIT
WALL
1m
LINE
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
4000 8000