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| STANDARD
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all-Mounted Indoor Unit Engineering Manual
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STANDARD WALL-MOUNTED
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• Measurements are taken 3.3 ft away from the front of the unit.
• Sound pressure levels are measured in dB(A) with a tolerance of ±3.
• Sound pressure levels are tested in an anechoic chamber under ISO Standard 3745.
Operating Conditions:
• Power source: 220V/60 Hz
• Sound level will vary depending on a range of factors including the construction
(acoustic absorption coefficient) of a particular room in which the unit was installed.
Figure 34: Sound Pressure Measurement Location.
Model
Sound Pressure Levels dB(A)
High Fan Speed
Medium Fan Speed
Low Fan Speed
6%)UDPHV
ARNU053SBL4
30.0
29.0
28.0
ARNU073SBL4
32.0
30.0
28.0
ARNU093SBL4
34.0
31.0
30.0
ARNU123SBL4
40.0
34.0
31.0
ARNU153SBL4
42.0
40.0
34.0
6&)UDPHV
ARNU183SCL4
40.0
35.0
31.0
ARNU243SCL4
45.0
40.0
35.0
69)UDPHV
ARNU303SVA4
49.0
44.0
42.0
ARNU363SVA4
52.0
47.0
43.0
Table 29: Standard Wall-Mounted Sound Pressure Levels.
Figure 35: ARNU053SBL4, ARNU073SBL4, and ARNU093SBL4 Sound Pressure Level Diagrams.
ARNU053SBL4
ARNU073SBL4
ARNU093SBL4
3.3 ft.
3.3 ft.
Microphone