145
MINI 4-way cassette
type indoor unit
5.8
Sound pressure level
1) Testing illustrate:
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.
1.5M
Octave band sound pressure level dB
Octave band sound pressure level dB
10
63 125
250
500 1000 2000 4000 8000
10
20
20
30
30
40
40
50
50
60
60
70
70
Octave band center frequency (Hz)
Octave band center frequency (Hz)
AB052-092MCERA(M)
AB122-182MCERA(M)
Limit of
audible
continuous
noise
Limit of
audible
continuous
noise
63
125
250
500 1000 2000 4000 8000
