465
Built-in Floor Standing
Type Indoor Unit
18.8 Noise level
2) Testing condition:
a: Unit running in the normal condition
b: Test in the semi-anechoic chamber
c: Noise level varies from the actual factors such as room structure, etc.
1) Testing illustrate:
Note:
The noise level will be measured in the third octave band limited values in the semi-anechoic chamber,
using a Real Time Analyses calibrated sound intensity meter. It is a sound pressure noise level.
Unit
Air return
Air return
Outlet side
Outlet side
Sound level meter
1m
1m
Air outlet
Testing position just opposite against the
central of the unit air outlet
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