LG MULTI AMNQ09GSJAA - Page 55

25
MULTI Standard
Outdoor Unit
11. Sound levels
11.1 Sound pressure level
Note
1.Data is valid at free field condition.
2.Reference accoustic pressure 0dB = 20μPa.
3.Data is valid at nominal operation condition.
Refer to the Model Specifications for nominal
conditions(Power source and Ambient temperature, etc)
4.Sound levels can be increased in accordance with
installation and operating conditions. (Operating
conditions include some functional condition like Static
pressure mode, air guide use, Room target temperature
setting, etc and these functions are different in
accordance with each model.)
5.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.
6.Sound pressure level is measured on the rated condition
in the anechoic rooms by ISO 3745 standard.
Therefore, these values can be increased owing to
ambient conditions during operation.
Model
Sound Pressure Level [dB(A)]
Cooling
A2UQ18GFAB 55
A3UQ24GFAB 56
A3UQ34GFAB 58
A2UQ18GFAB A3UQ24GFAB A3UQ34GFAB
1m
1.5m
Front
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
63 125 250 500 1000 2000 4000 8000
Octave Band Sound Pressure Level (0dB = 20μPa )
Octave Band Center Frequency (Hz)
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
 Cooling
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
63 125 250 500 1000 2000 4000 8000
Octave Band Sound Pressure Level (0dB = 20μPa )
Octave Band Center Frequency (Hz)
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
 Cooling
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
63 125 250 500 1000 2000 4000 8000
Octave Band Sound Pressure Level (0dB = 20μPa )
Octave Band Center Frequency (Hz)
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
 Cooling