LG MULTI V ARNU12GTRA4

Indoor unit
9. Sound Levels
Ceiling Concealed Duct(Low Static) _ 21
Indoor Units
9.1 Sound Pressure Levels
Overall
1.5m
2m
2m
DUCT
DISCHARGE
SUCTION
DUCT
❈ Measuring place : Anechoic chamber
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.
Model
Sound Pressure Levels (dB(A),H-M-L)
External Static Pressure (Pa)
10 20 50
ARNU05GL1G4 24-22-21 25-24-22 29-28-27
ARNU07GL1G4 25-22-21 26-24-22 31-29-27
ARNU09GL1G4 27-24-21 28-25-22 32-30-27
ARNU12GL2G4 28-26-24 30-27-25 34-32-30
ARNU15GL2G4 32-28-26 33-30-28 36-34-32
ARNU18GL2G4 34-31-28 35-32-29 38-36-34
ARNU21GL3G4 33-28-27 35-29-28 38-36-34
ARNU24GL3G4 35-32-27 36-33-28 39-36-34
9.1.1 Sound Pressure Level (10Pa)
Octave Band Center Frequency (Hz)
Octave Band Sound Pressure Level (0 dB = 20 μPa)
10
20
30
40
50
60
70
80
63 125 250 500 1 000 2 000 4 000 8 000
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
Octave Band Center Frequency (Hz)
Octave Band Sound Pressure Level (0 dB = 20 μPa)
10
20
30
40
50
60
70
80
63 125 250 500 1 000 2 000 4 000 8 000
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
Octave Band Center Frequency (Hz)
Octave Band Sound Pressure Level (0 dB = 20 μPa)
10
20
30
40
50
60
70
80
63 125 250 500 1 000 2 000 4 000 8 000
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
ARNU05GL1G4 ARNU07GL1G4 ARNU09GL1G4
n High
▲ Mid
l Low
n High
▲ Mid
l Low
n High
▲ Mid
l Low