Noise Criteria Curves - Mitsubishi Electric MXZ-18TV Service Manual

6

NOISE CRITERIA CURVES

MXZ-18TV -
90
80
70
60
50
40
30
APPROXIMATE
20
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63
E1
125 250
BAND CENTER FREQUENCIES, Hz
NOTCH
Cooling
Heating
Test conditions.
Cooling :DB35:
Heating :DB 7:
500 1000 2000
5
SPL(dB ) LINE
(A)
48
49
WB24:
WB 6:
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
4000 8000