Sound Levels - LG MULTI V ARNU07GTUA4 Engineering Product Data Book

Indoor unit

9. Sound Levels

9.1 Sound Pressure Levels
Overall
DISCHARGE
DUCT
2m
❈ Measuring place : Anechoic chamber
Sound Pressure Levels (dB(A),H-M-L)
Model External Static Pressure (Pa)
10
ARNU05GL1G4 24-22-21
ARNU07GL1G4 25-22-21
ARNU09GL1G4 27-24-21
ARNU12GL2G4 28-26-24
ARNU15GL2G4 32-28-26
ARNU18GL2G4 34-31-28
ARNU21GL3G4 33-28-27
ARNU24GL3G4 35-32-27
9.1.1 Sound Pressure Level (10Pa)
ARNU05GL1G4
80
70
60
50
40
30
20
Approximate
Hearing
Threshold
10
63 125 250 500 1 000 2 000 4 000 8 000
Octave Band Center Frequency (Hz)
SUCTION
DUCT
1.5m
2m
20 50
25-24-22 29-28-27
26-24-22 31-29-27
28-25-22 32-30-27
30-27-25 34-32-30
33-30-28 36-34-32
35-32-29 38-36-34
35-29-28 38-36-34
36-33-28 39-36-34
ARNU07GL1G4
80
n
High
▲ Mid
l 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
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
n
High
▲ Mid
l 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
NC-20
NC-15
10
500 1 000 2 000 4 000 8 000
Ceiling Concealed Duct(Low Static)
ARNU09GL1G4
n
High
▲ Mid
l Low
Approximate
Hearing
Threshold
63 125 250 500 1 000 2 000 4 000 8 000
Octave Band Center Frequency (Hz)
_ 21
NC-65
NC-60
NC-55
NC-50
NC-45
NC-40
NC-35
NC-30
NC-25
NC-20
NC-15