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

Indoor unit
9. Sound Levels
Overall
DISCHARGE
DUCT
2m
❈ Measuring place : Anechoic chamber
Sound Level dB(A)
Model
H
ARNU07GBGA4 31
ARNU09GBGA4 32
ARNU12GBGA4 32
ARNU15GBGA4 33
ARNU18GBRA4 43

Sound Pressure Level

ARNU07GBGA4
80
70
60
50
40
30
20
Approximate
Hearing
Threshold
10
63 125 250 500 1000 2000 4000
Octave Band Center Frequency (Hz)
SUCTION
DUCT
1.5m
2m
M L
30 29
31 29
31 30
32 31
42 41
ARNU09GBGA4
80
n
High
▲ Mid
●
Low
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
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)
- External static pressure is according to "Standard mode"
value. Refer the specifications.
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.
Model
H
ARNU24GBRA4 44
ARNU28GBRA4 41
ARNU36GB8A4 46
ARNU42GB8A4 47
ARNU48GB8A4 47
n
High
▲ Mid
●
Low
NC-65
NC-60
NC-55
NC-50
NC-45
NC-40
NC-35
NC-30
NC-25
NC-20
NC-15
250 500 1000 2000 4000 8000
Ceiling Concealed Duct (High Sensible)
Sound Level dB(A)
M L
43 42
40 39
45 42
46 43
46 44
ARNU12GBGA4
80
n
High
▲ Mid
●
Low
70
60
50
40
30
20
Approximate
Hearing
Threshold
10
63 125 250 500 1000 2000 4000
Octave Band Center Frequency (Hz)
NC-65
NC-60
NC-55
NC-50
NC-45
NC-40
NC-35
NC-30
NC-25
NC-20
NC-15
8000
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