LG LS243HLV3 Engineering Manual page 19

Outdoor Unit Sound Pressure Measurement / Sound Pressure Levels
Figure 9: Extended Piping Wall Mounted Outdoor Unit Sound Level
Measurement Location.
3.3 feet (1 m)
Table 7: Extended Piping Wall Mounted Outdoor Unit Sound Pressure Data.
Model
LSU243HLV3
LSU303HLV3
LSU363HLV3
LSU243HLV3 Sound Pressure Levels
Figure 10: Sound Pressure Levels for LSU243HLV3 Outdoor Units.
LSU243HLV3
Cooling
80
70
60
50
40
30
20
Approximate
Hearing
Threshold
10
63 125 250 500 1000
Octave Band Center Frequency (Hz
OUTDOOR UNIT ACOUSTIC DATA
Center of
Outdoor Unit
Cooling
H
55
55
55
Front
Back
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
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Extended Piping Wall Mounted Systems
• Measurements are taken 3.3 feet (1 m) away from the front of the
unit.
• Sound pressure levels are measured in dB(A) with a tolerance of
±1.
• Data is valid at nominal operation conditions. Operating conditions
are assumed to be standard.
• Reference acoustic pressure 0dB=20μPa.
• Sound pressure levels are tested in an anechoic chamber under
ISO Standard 3745, and may be different according to the test
condition or equipment.
• 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.
Heating
H
56
58
58
Heating
80
70
60
50
40
30
20
Approximate
Hearing
Threshold
10
63 125 250 500 1000
Octave Band Center Frequency (Hz
Front
Back
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
PRODUCT DATA | 19