Haier AB072MRERA - Sound Pressure Level

381
Constant Air Volume Duct
Type Indoor Unit (AD*MQERA)
15.8 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
63 125 250 500 1000 2000 4000 8000
AD072-092MQERA
800040002000100050025012563
70
60
50
40
30
20
10
AD122-182MQERA
10
20
30
40
50
60
70
63 125 250 500 1000 2000 4000 8000
800040002000100050025012563
70
60
50
40
30
20
10
AD282-302MQERA
AD242MQERA
Octave band center frequency (HZ)
Octave band center frequency (HZ)
Octave band center frequency (HZ)
Octave band center frequency (HZ)
Octave band sound pressure level dB
Octave band sound pressure level dB
Octave band sound pressure level dB Octave band sound pressure level dB
Limit of
audible
continuous
noise
Limit of
audible
continuous
noise
Limit of
audible
continuous
noise
Limit of
audible
continuous
noise
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