LG ARNU 073 SER2 Engineering Manual page 24

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Acoustic data
Sound Pressure levels
Figure 6: Sound Pressure Measurement Location.
3.3 ft.
Microphone
Table 16: Art Cool Mirror Wall-Mounted Indoor Unit Sound Pressure Levels.
Model
SE Frames
ARNU073SER2
ARNU093SER2
ARNU123SER2
ARNU153SER2
S8 Frames
ARNU183S8R2
ARNU243S8R2
Figure 7: ARNU073SER2, ARNU093SER2, and ARNU123SER2 Sound Pressure Level Diagrams.
ARNU073SER2
80
70
60
50
40
30
20
Approximate
Hearing
Threshold
10
63 125 250 500 1000 2000 4000 8000
Octave Band Center Frequency (Hz)
24 | Art Cool
tM
MIRRoR
• 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.
3.3 ft.
High Fan Speed
37
39
41
42
1/4 Flare
3/8 Flare
ARNU093SER2
80
70
NC-65
60
NC-60
NC-55
50
NC-50
NC-45
40
NC-40
NC-35
30
NC-30
20
NC-25
Approximate
NC-20
Hearing
Threshold
NC-15
10
63 125
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.
Sound Pressure Levels dB(A)
Medium Fan Speed
33
35
36
36
1/2 Flare
5/8 Flare
NC-65
NC-60
NC-55
NC-50
NC-45
NC-40
NC-35
NC-30
NC-25
NC-20
NC-15
250 500 1000 2000 4000 8000
Octave Band Center Frequency (Hz)
Low Fan Speed
23
25
27
27
31
32
ARNU123SER2
80
70
60
50
40
30
20
Approximate
Hearing
Threshold
10
63 125 250 500 1000 2000 4000 8000
Octave Band Center Frequency (Hz)
NC-65
NC-60
NC-55
NC-50
NC-45
NC-40
NC-35
NC-30
NC-25
NC-20
NC-15