LG LH247HV, Инструкция по эксплуатации

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Model
Sound Pressure Levels (dB[A])
H M L
LHN247HV 38 36 35
LHN367HV 39 38 37
Table 6: Ceiling-Concealed Duct (High Static) Indoor Unit Sound
Pressure Levels (dB[A]).
Figure 8: Indoor Unit Sound Pressure Level Measurement Location.
Figure 9: Ceiling-Concealed Duct (High Static) Indoor Unit Sound Pressure Level Diagrams.
• 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.
4.9 ft.
6.6 ft.
3.3 ft.
DUCT
DISCHARGE SUCTION
DUCT
Octave Band Sound Pressure Level (0dB = 20μPa
)
10
20
30
40
50
60
70
80
Approximate
Hearing
Threshold
Octave Band Center Frequency (Hz)
Octave Band Sound Pressure Level (0dB = 20μPa
)
10
20
30
40
50
60
70
80
63 125 250 500 1000 2000 4000 8000
Octave Band Center Frequency (Hz)
63 125 250 500 1000 2000 4000 8000
NC-15
NC-20
NC-25
NC-30
NC-35
NC-40
NC-45
NC-50
NC-55
NC-60
NC-65
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
LHN247HV LHN367HV
Indoor units
aCouStiC data
duct (HIgH StatIc) | 17
Product Data
Due to our policy of continuous product innovation, some specifications may change without notification.
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