Haier AB072MRERA - Sound Pressure Level

298
12.8 Sound pressure level
Unit
Air
Air outlet duct
Air return duct
Outlet side
1.4m
Sound level meter
Testing position just below the central of the unit
evlav
lortnoC
(2) Testing condition:
a. Unit running in the standard condition
b. Test in the semi-anechoic chamber
c. Noise level varies from the actual factors such as room structure, etc.
(1) Testing illustrate:
10
20
30
40
50
60
70
6363
63 63
125 250 500 1000 2000 4000 8000
AD052/072/92/122MJERA
Octave band sound pressure level dB
Octave band center frequency (HZ)
8000400020001000500250125
70
60
50
40
30
20
10
Limit of
audible
continuous
noise
10
20
30
40
50
60
70
125 250 500 1000 2000 4000 8000
8000400020001000500250125
70
60
50
40
30
20
10
Octave band sound pressure level dB
Octave band sound pressure level dB
Octave band sound pressure level dB
Octave band center frequency (HZ)
Octave band center frequency (HZ)
Octave band center frequency (HZ)
Limit of
audible
continuous
noise
Limit of
audible
continuous
noise
Limit of
audible
continuous
noise
AD162MJERA
AD182MJERA
AD242/282MJERA
NC-60
NC-50
NC-40
NC-30
NC-20
NC-60
NC-50
NC-40
NC-30
NC-20
M
NC-60
NC-50
NC-40
NC-30
NC-20
NC-60
NC-50
NC-40
NC-30
NC-20
H
L
H
M
L
H
M
L
H
M
L