Noise Criteria Curves - Mitsubishi Electric MSZ-HA25VA-E1 Service Manual

4

NOISE CRITERIA CURVES

MSZ-HA25VA
FAN SPEED
Super High
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-HA35VA
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
Test conditions,
Cooling : Dry-bulb temperature 27: Wet-bulb temperature 19:
Heating : Dry-bulb temperature 20: Wet-bulb temperature 15:
0.8m
MICROPHONE
5
SPL(dB(A))
FAN SPEED FUNCTION
COOLING 43
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