LG MULTI V ARNU243TTD4 - Page 45

TWO-WAY | 45
Two-Way Ceiling Cassette Product Data
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Acoustic Data
TWO-WAY CASSETTE
Sound Power Levels
• Data is valid under diffuse field conditions.
• Data is valid under nominal operating conditions.
• Sound power level is measured using rated conditions, and tested
in a reverberation room per ISO 3741 standards.
• Sound level will vary depending on a range of factors such as
construction (acoustic absorption coefficient) of particular area in
which the equipment is installed.
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Table 22: Two-Way Ceiling Cassette Indoor Unit Sound Power Levels.
Model
Sound Levels dB(A)
High Fan Speed
ARNU183TSA4 44.0
ARNU243TSA4 48.0
Figure 29: ARNU183TSA4 and ARNU243TSA4 Sound Power Level Diagrams.
ARNU183TSA4 ARNU243TSA4
10
20
30
40
50
60
70
80
90
100
125 250 500 1000 2000 4000 8000
Sound Power Level (0dB = 10E-6W/m
2
)
Octave Band Center Frequency (Hz)
NR-70
NR-65
NR-60
NR-55
NR-50
NR-45
NR-40
NR-35
NR-30
NR-75
NR-25
NR-20
NR-80
NR-85
NR-90
Hig h
Middle
Low
10
20
30
40
50
60
70
80
90
100
125 250 500 1000 2000 4000 8000
Sound Power Level (0dB = 10E-6W/m
2
)
Octave Band Center Frequency (Hz)
NR-70
NR-65
NR-60
NR-55
NR-50
NR-45
NR-40
NR-35
NR-30
NR-75
NR-25
NR-20
NR-80
NR-85
NR-90
Hig h
Middle
Low