78 | STANDARD
MUL
TI V W
all-Mounted Indoor Unit Engineering Manual
Due to our policy of continuous product innovation, some specifications may change without notification.
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LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Figure 30: ARNU123SJA4, ARNU153SJA4, and ARNU183SKA4 Sound Pressure Level Diagrams.
Figure 31: ARNU243SKA4, ARNU303SVA4, and ARNU363SVA4
Sound Pressure Level Diagram.
STANDARD WALL-MOUNTED
Acoustic Data
Sound Pressure Levels
ARNU243SKA4
ARNU303SVA4
ARNU363SVA4
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
63
125
250
500
1000 2000 4000 8000
O
ct
av
e
Band
S
ound
P
re
ss
ur
e
Le
ve
l (
dB
=
2
0
μ
Pa
)
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
High
Middle
Low
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
ARNU123SJA4
ARNU153SJA4
ARNU183SKA4
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
63
125
250
500
1000 2000 4000 8000
O
ct
av
e
Band
S
ound
P
re
ss
ur
e
Le
ve
l (
dB
=
2
0
μ
Pa
)
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
High
Middle
Low
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
63
125
250
500
1000 2000 4000 8000
O
ct
av
e
Band
S
ound
P
re
ss
ur
e
Le
ve
l (
dB
=
2
0
μ
Pa
)
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
High
Middle
Low
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
63
125
250
500
1000 2000 4000 8000
O
ct
av
e
Band
S
ound
P
re
ss
ur
e
Le
ve
l (
dB
=
2
0
μ
Pa
)
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
High
Middle
Low