Acoustic Data - LG MULTI F Engineering Manual

F
MULTI
F
MULTI MAX
Figure 75: Sound Pressure Level Measurement Location.
3.3 ft.
Microphone
Figure 76:LMN077HVT, LSN090HSV4, and LSN120HSV4 Sound Pressure Level Diagrams.
LMN077HVT
80
70
60
50
40
30
20
Approximate
Hearing
Threshold
10
63 125 250 500 1000
Octave Band Center Frequency (Hz)
STANDARD WALL-MOUNTED INDOOR UNITS
2.6 ft.
80
80
70
70
NC-65
60
60
NC-60
NC-55
50
50
NC-50
NC-45
40
40
NC-40
NC-35
30
30
NC-30
NC-25
20
20
Approximate
NC-20
Approximate
Hearing
Hearing Threshold
NC-15
Threshold
10
2000 4000 8000
10
63
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 2.6' below the bottom of the unit and at a
distance of 3.3' from face of 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 35: Sound Pressure Levels (dB[A]).
Sound Pressure Levels (dB[A]) (Cooling and Heating)
Model No.
High Fan Speed
LMN077HVT
LSN090HSV4
LSN120HSV4
LMN157HVT
LSN180HSV4
LMN247HVT
LSN090HSV4
LMN157HVT
NC-65
NC-60
NC-55
NC-50
NC-45
NC-40
NC-35
NC-30
NC-25
NC-20
NC-15
63 125 250 500 1000 2000 4000
125 250 500 1000 2000 4000 8000
Octave Band Center Frequency (Hz)
Octave Band Center Frequency (Hz)

Acoustic Data

Medium Fan
Speed
33 30
33 30
39 36
43 39
37 33
42 39
LSN120HSV4
80
80
70 70
NC-65
60
60
NC-60
NC-55
50
50
NC-50
NC-45
40
40
NC-40
NC-35
30
30
NC-30
NC-25
20
20
Approximat e
NC-20
Hearing
Approximate
Threshold
Hearing
NC-15
Threshold
10
63 125
8000 10
63 125 250 500 1000
Octave Band Center Frequency (Hz)
Octave Band Center Frequency (Hz)
STD. WALL-MOUNTED | 69
Low Fan Speed
26
27
31
34
28
36
LMN247HVT
80
70
NC-65
NC-65
60
NC-60
NC-60
NC-55
NC-55
50
NC-50
NC-50
NC-45
NC-45
40
NC-40
NC-40
NC-35
NC-35
30
NC-30
NC-30
NC-25
NC-25 20
NC-20
A
NC-20
H
NC-15
T
NC-15
10
250 500 1000 2000 4000 8000
2000 4000 8000