Hitachi RAC-25WXD, Technical Catalogue, Page: 15 / 39

SOUND DATA
1 3
4.2. RAC-35WX
D
The Sound Pressure Level is based on the following conditions:
-
1 meter from the unit front surface and 1 meter from floor level
The above data was measured in an anechoic chamber. Please take into consideration reflected sound of your specific site
Soun
d
Pr
es
su
re
L
ev
el
(dB
)
250 500 1000 2000
Octave band main wave length (Hz)
Soun
d
Pr
ess
ur
e
Le
ve
l (
dB
)
250 500 1000 2000
Octave band main wave length (Hz)
COOLING
HEATING
49.7
48.4
46.9
45.0
41.9
37.9
32.6
25.7
NC-15
NC-20
NC-25
NC-30
NC-35
NC-40
NC-45
NC-50
NC-55
NC-60
NC-65
NC-70
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
63 125 4000 8000
49.7
48.6
48.5
46.3
43.7
39.6
34.1
27.2
最小
可聴値
NC-15
NC-20
NC-25
NC-30
NC-35
NC-40
NC-45
NC-50
NC-55
NC-60
NC-65
NC-70
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
63 125 4000 8000