Noise Criteria Curves - Mitsubishi Electric MUZ-HJ VA Series Service Manual

4

NOISE CRITERIA CURVES

MSZ-HJ25VA
FAN SPEED
Super High
90
80
70
60
50
40
30
20
10
63 125
BAND CENTER FREQUENCIES, Hz
MSZ-HJ50VA
FAN SPEED
Super High
90
80
70
60
50
40
30
20
10
63 125
BAND CENTER FREQUENCIES, Hz
OBH647C
FUNCTION SPL(dB(A))
43
COOLING
HEATING 43
NC-10
250 500 1000 2000 4000
FUNCTION SPL(dB(A))
45
COOLING
47
HEATING
NC-10
250 500 1000 2000 4000
MSZ-HJ35VA
LINE
90
80
70
NC-70
60
NC-60
50
NC-50
40
NC-40
30
NC-30
20
NC-20
10
8000
63
Test conditions
LINE
Cooling : Dry-bulb temperature 27°C Wet-bulb temperature 19°C
Heating : Dry-bulb temperature 20°C
NC-70
0.8m
MICROPHONE
NC-60
NC-50
NC-40
NC-30
NC-20
8000
7
FAN SPEED FUNCTION SPL(dB(A))
COOLING
Super High
HEATING
NC-10
125 250 500 1000 2000
BAND CENTER FREQUENCIES, Hz
INDOOR UNIT
WALL
1m
LINE
45
44
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
4000 8000