9
NOISE CRITERIA CURVES
6
90
80
70
60
50
40
30
20
10
63
125
250
500
1000
2000
4000
8000
APPROXIMATE
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCT
A
VE BAND SOUND PRESSURE LEVEL, 0dB = 0.0002 MICRO BAR
BAND CENTER FREQUENCIES, Hz
Test conditions.
Cooling :DB35
:
WB24
:
Heating :DB 7
:
WB 6
:
COOL(220V)
NOTCH
COOL(240V)
HEAT(220V)
HEAT(240V)
45
SPL(dB
(A)
)
47
46
48
LINE
MXZ-32SV -
E1
MXZ-32SV -
E2
OB254-1.qxp 03.1.16 4:33 PM Page 9
