Hitachi RAK-18RPB - Rac-25 Wpb

SOUND DATA
17
4.2. RAC-25WPB
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
33.6
33
44.9
45.9
45
41.2
35.8
33.5
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
Sound Pressure Level (dB)
Octave band main wave length (Hz)
40.5
39.7
49.7
54.9
48.2
44.3
38.9
35.1
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
Sound Pressure Level (dB)
Octave band main wave length (Hz)