Acoustic Data - LG MULTI F Engineering Manual
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- Installation manual (361 pages) ,
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FOUR-WAY CEILING-CASSETTE INDOOR UNITS
Acoustic Data
Figure 188: Sound Pressure Level Measurement Location.
Figure 189: LMCN077HV and LMCN097HV Sound Pressure Level Diagrams.
LMCN077HV
80
70
60
50
40
30
20
Approximate
Hearing
Threshold
10
63
125
250
500
Octave Band Center Frequency (Hz)
138 | CEILING-CASSETTE
Ceiling
4.9 ft.
Microphone
NC-65
NC-60
NC-55
NC-50
NC-45
NC-40
NC-35
NC-30
NC-25
NC-20
NC-15
1000
2000
4000
8000
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. "LG" is a registered trademark of LG Corp.
• Measurement taken 4.9' away from the unit.
• Measurements taken with no attenuation and units operating at full
load normal operating condition.
• 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.
• Sound power levels are measured in dB(A)±3.
• Tested in anechoic chamber per ISO Standard 3745.
Table 76: Sound Pressure Levels (dB[A]).
Sound Pressure Levels (dB[A]) (Cooling and Heating)
Model No.
High Fan Speed
LMCN077HV
LMCN097HV
LMCN125HV
LMCN185HV
LMCN097HV
90
80
70
60
50
40
30
20
10
63
125
250
500
1000
Octave Band Center Frequency (Hz)
MULTI
MULTI
Medium Fan
Low Fan Speed
Speed
31
27
36
33
38
35
38
37
NC-70
NC-65
NC-60
NC-55
NC-50
NC-45
NC-40
NC-35
NC-30
NC-25
NC-20
NC-15
2000
4000
8000
F
F
MAX
24
30
32
34
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