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9. Sound Levels
Indoor unit
26
_
Ceiling Concealed Duct(Low Static)
Indoor Units
Octave Band Center Frequency (Hz)
20
30
40
50
60
70
80
90
100
125
250
500
1000
2000
4000 8000
NR-30
NR-35
NR-40
NR-45
NR-50
NR-55
NR-60
NR-65
NR-70
NR-75
NR-80
NR-85
NR-90
Octave Band Sound Power Level (dB = 10E-6μW/m
2
)
Octave Band Center Frequency (Hz)
20
30
40
50
60
70
80
90
100
125
250
500
1000
2000
4000 8000
NR-30
NR-35
NR-40
NR-45
NR-50
NR-55
NR-60
NR-65
NR-70
NR-75
NR-80
NR-85
NR-90
Octave Band Sound Power Level (dB = 10E-6μW/m
2
)
ARNU21GL3G4
ARNU24GL3G4