Sound Pressure Level - Haier AB072MRERA Service Manual

17.8 Sound pressure level

Air outlet duct
Outlet side
Testing position just below the central of the unit
Note:
1. The test is on the standard condition.
2. The noise level dB is measured in the semi-anechoic chamber, using a Real Time Analyzer calibrated sound
intensity meter. It is a sound pressure noise level.
AD482MPERA
70
60
50
40
30
20
Limit of audible
continuous
noise
10
63 125
Octave band center frequency (Hz )
Unit
Around level meter
250 500 1000 2000 4000 8000
Air return duct
AD
70
60
50
40
30
20
Limit of audible
continuous
noise
10
63 125 250 500 1000 2000 4000 8000
Octave band center frequency (Hz)
443
Air
962MPERA
72/