Hitachi RAK-18PSC, Руководство пользователя

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SOUND DATA
4-1
4 SOUND DATA
4.1. RAC-18WSC
COOLING
HEATING
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
35.9
36.9
43.7
44.8
47.2
41.5
38.1
34.4
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
10
20
30
40
50
60
70
80
90
63 125 250 500 1000 2000 4000 8000
S
ound P
res
s
ur
e
Lev
el
(
dB
)
Octave band main wave length (Hz)
33.5
36.8
42.8 42.8
44.6
37.6
33.2
34.1
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
10
20
30
40
50
60
70
80
90
63 125 250 500 1000 2000 4000 8000
S
ound P
res
s
ur
e Lev
el
(
dB
)
Octave band main wave length (Hz)