36 | CEILING SUSPENDED
MUL
TI V Floor
, Suspended, Convertible Indoor Unit Engineering Manual
Due to our policy of continuous product innovation, some specifications may change without notification.
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LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Acoustic Data
Sound Pressure Levels
CEILING SUSPENDED
Model
Sound Levels dB(A)
High Fan Speed
Medium Fan Speed
Low Fan Speed
ARNU183VJA2
42
40
37
ARNU243VJA2
43
41
39
Table 22: Ceiling Suspended Indoor Unit Sound Pressure Levels
Octave Band Sound Pressure Level (dB re 20µPa
)
10
20
30
40
50
60
70
80
63
125
250
500
1000
2000
4000
8000
Octave Band Center Frequency (Hz)
NC-15
NC-20
NC-25
NC-30
NC-35
NC-40
NC-45
NC-50
NC-55
NC-60
NC-65
Approximate
Hearing
Threshold
Octave Band Sound Pressure Level (dB re 20µPa
)
10
20
30
40
50
60
70
80
63
125
250
500
1000 2000 4000 8000
Octave Band Center Frequency (Hz)
NC-15
NC-20
NC-25
NC-30
NC-35
NC-40
NC-45
NC-50
NC-55
NC-60
NC-65
Approximate
Hearing
Threshold
ARNU183VJA2
ARNU243VJA2
3.3 ft.
Microphone
3.3 ft.
Figure 22: ARNU183VJA2 and ARNU243VJA2 Sound Pressure Level Diagrams.
Figure 21: Sound Pressure Measurement Location.
• Measurements are taken 3.3 ft away from the front of the unit.
• Sound pressure levels are measured in dB(A) with a tolerance of
±3.
• Sound pressure levels are tested in an anechoic chamber under
ISO Standard 3745.
Operating Conditions:
• Power source: 220V/60 Hz
• Sound level will vary depending on a range of factors including the
construction (acoustic absorption coefficient) of a particular room in
which the unit was installed.
