Sound Pressure Levels - LG MULTI V ARNU07GTUA4 Engineering Product Data Book

Indoor unit
9. Sound Levels

9.1 Sound Pressure Levels

Overall
1.5m
❈ Measuring place : Anechoic chamber
Sound Pressure Levels dB(A)
Model
ARNU07GTN*4
ARNU15GTN*4
ARNU18GTN*4
ARNU24GTM*4
ARNU07GTN*4
80
70
60
50
40
30
20
Approximate
Hearing
Threshold
10
63 125 250 500 1000 2000 4000
Octave Band Center Frequency (Hz)
Ceiling
H M L
29 26 24
32 29 26
34 30 26
41 38 35
ARNU15GTN*4
80
70
NC-65
60
NC-60
NC-55
50
NC-50
NC-45
40
NC-40
NC-35
30
NC-30
NC-25
20
Approximate
NC-20
Hearing
Threshold
NC-15
10
8000 63 125 250
Octave Band Center Frequency (Hz)
Notes:
1. Sound measured at 1.5m away from the center of the unit
2. Operating condition|
- Power source : 220-240V 50Hz / 220V 60Hz
- Cooling : Indoor temperature (27°C DB, 19°C WB),
Outdoor temperature (35°C DB, 24°C WB)
- Heating : Indoor temperature (20°C DB, 15°C WB),
Outdoor temperature (7°C DB, 6°C WB)
3. Reference accoustic pressure 0dB = 20μPa
4. Sound level will vary depending on a range of factors such as
the construction(acoustic absorption coefficient) of particular
room in which the equipment in installed.
80
70
NC-65
60
NC-60
NC-55
50
NC-50
NC-45
40
NC-40
NC-35
30
NC-30
NC-25
20
NC-20
NC-15
10
500 1000 2000 4000 8000
Ceiling Cassette 4-way(2)
ARNU18GTN*4
Approximate
Hearing
Threshold
63 125 250 500 1000 2000 4000 8000
Octave Band Center Frequency (Hz)
_ 15
NC-65
NC-60
NC-55
NC-50
NC-45
NC-40
NC-35
NC-30
NC-25
NC-20
NC-15