Noise Criteria Curves - Mitsubishi Electric MXZ-A18WV Service Manual

NOISE CRITERIA CURVES

6
MXZ-A18WV -
E1
90
80
70
60
50
40
30
APPROXIMATE
20
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
FAN SPEED FUNCTION SPL(dB ) LINE
(A)
High Cooling 49
High Heating 50
Test conditions.
Cooling :DB 35: WB 24:
Heating :DB 7: WB 6:
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
MXZ-A26WV -
E1
MXZ-A32WV -
E1
90
80
70
60
50
40
30
APPROXIMATE
20
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125
23
FAN SPEED FUNCTION SPL(dB
46
High Cooling
High Heating 48
Test conditions.
Cooling :DB 35:
Heating :DB 7:
250 500 1000 2000 4000
BAND CENTER FREQUENCIES, Hz
) LINE
(A)
WB 24:
WB 6:
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
8000