STANDARD | 79
Standard W
all-Mounted
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STANDARD WALL-MOUNTED
Acoustic Data
Sound Power Levels
• Data is valid under diffuse field conditions.
• Data is valid under nominal operating conditions.
• Sound power level is measured using rated conditions, and tested
in a reverberation room per ISO 3741 standards.
• Sound level will vary depending on a range of factors such as
construction (acoustic absorption coefficient) of particular area in
which the equipment is installed.
•
Reference acoustic intensity: 0dB = 10E-6μW/m
2
Table 41: Standard Wall-Mounted Indoor Unit Sound Power Levels.
Model
Sound Power Levels dB(A)
High Fan Speed
SJ Frames
ARNU053SJA4
54.0
ARNU073SJA4
54.0
ARNU093SJA4
55.0
ARNU123SJA4
55.0
ARNU153SJA4
58.0
SK Frames
ARNU183SKA4
63.0
ARNU243SKA4
65.0
SV Frames
ARNU303SVA4
61.0
ARNU363SVA4
63.0
Figure 32: ARNU053SJA4, ARNU073SJA4, and ARNU093SJA4 Sound Power Level Diagrams.
ARNU053SJA4
ARNU073SJA4
ARNU093SJA4
10
20
30
40
50
60
70
80
90
100
125
250
500
1000
2000
4000
8000
Sound
P
ow
er
Le
vel
(0d
B
=
10
E-
6
μ
W/
m
2
)
Octave Band Center Frequency (Hz)
NR-70
NR-65
NR-60
NR-55
NR-50
NR-45
NR-40
NR-35
NR-30
NR-75
NR-25
NR-20
NR-80
NR-85
NR-90
High
Middle
Low
10
20
30
40
50
60
70
80
90
100
125
250
500
1000
2000
4000
8000
Sound
P
ow
er
Le
vel
(0d
B
=
10
E-
6
μ
W/
m
2
)
Octave Band Center Frequency (Hz)
NR-70
NR-65
NR-60
NR-55
NR-50
NR-45
NR-40
NR-35
NR-30
NR-75
NR-25
NR-20
NR-80
NR-85
NR-90
High
Middle
Low
10
20
30
40
50
60
70
80
90
100
125
250
500
1000
2000
4000
8000
Sound
P
ow
er
Le
vel
(0d
B
=
10
E-
6
μ
W/
m
2
)
Octave Band Center Frequency (Hz)
NR-70
NR-65
NR-60
NR-55
NR-50
NR-45
NR-40
NR-35
NR-30
NR-75
NR-25
NR-20
NR-80
NR-85
NR-90
High
Middle
Low
