Airwell YCV Series, Service Manual

Page: 23 / 82

21
8000 4000 2000 1000 500 250 125 63 63 63 63 63 63 63 63
70
60
50
40
30
20
10
Octave band center frequency(Hz)
Octave band sound pressure level
dB(A)
Limit of
audible
continuous
noise
NC-60
NC-50
NC-40
NC-30
NC-20
H
8000 4000 2000 1000 500 250 125 63 63 63 63 63 63 63 63
70
60
50
40
30
20
10
Octave band center frequency(Hz)
Octave band sound pressure level
dB(A)
Limit of
audible
continuous
noise
NC-60
NC-50
NC-40
NC-30
NC-20
H
8000 4000 2000 1000 500 250 125 63 63 63 63 63 63 63 63
70
60
50
40
30
20
10
Octave band center frequency(Hz)
Octave band sound pressure level
dB(A)
Limit of
audible
continuous
noise
NC-60
NC-50
NC-40
NC-30
NC-20
H
8. Noise Level
(1) Testing illustration
(2) Testing condition:
a. Unit running in the nominal condition
b. Test in the semi-anechoic chamber
c. Noise level varies from the actual factors such as room structure, etc.
(3) Octave band level
1
m
A
Front
AWAU-YCV080-H11
AWAU-YCV125-H11
AWAU-YCV150-H11
AWAU-YCV150-H13
AWAU-YCV180-H13