Noise Criteria Curves - Mitsubishi MSH-GA50VB Service Manual

4

NOISE CRITERIA CURVES

MSH-GA50VB
Test conditions,
Cooling : Dry-bulb temperature 27: Wet-bulb temperature 19:
Heating : Dry-bulb temperature 20: Wet-bulb temperature 15.5:
90
80
70
60
50
40
30
APPROXIMATE
20
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
MSH-GA80VB
Test conditions,
Cooling : Dry-bulb temperature 27: Wet-bulb temperature 19:
Heating : Dry-bulb temperature 20: Wet-bulb temperature 15.5:
90
80
70
60
50
40
30
APPROXIMATE
20
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
OB367D
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FAN SPEED SPL(dB(A)) LINE
High
42
500 1000 2000 4000 8000
FAN SPEED SPL(dB(A)) LINE
High
47
500 1000 2000 4000 8000
MSH-GA60VB
Test conditions,
Cooling : Dry-bulb temperature 27: Wet-bulb temperature 19:
Heating : Dry-bulb temperature 20: Wet-bulb temperature 15.5:
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
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
6
FAN SPEED SPL(dB(A))
High
45
250 500 1000 2000
BAND CENTER FREQUENCIES, Hz
INDOOR UNIT
WALL
1m
LINE
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
4000 8000