72 | FOUR-WAY
MULTI V Ceiling Cassette Indoor Unit Engineering Manual
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FOUR-WAY CEILING CASSETTE
Acoustic Data
Sound Pressure Levels
• Measurements are taken 4.9 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 (acous-
tic absorption coefficient) of a particular room in which the unit was installed.
Figure 38: Sound Pressure Measurement Location.
4.9 ft.
Ceiling
Microphone
Table 38: Four-Way Ceiling Cassette Indoor Unit Sound Pressure Levels.
Model
Sound Pressure Levels dB(A)
High Fan Speed Medium Fan Speed Low Fan Speed
[)UDPHV
ARNU053TRD4 29.0 27.0 26.0
ARNU073TRD4 29.0 27.0 26.0
ARNU093TRD4 30.0 29.0 27.0
ARNU123TRD4 32.0 30.0 27.0
ARNU153TQD4 36.0 34.0 32.0
ARNU183TQD4 37.0 35.0 34.0
[)UDPHV73Ǝ+LJK
ARNU243TPC4 36.0 34.0 31.0
ARNU283TPC4 39.0 35.0 33.0
3' x 3' )UDPHV71Ǝ+LJK
ARNU073TNA4 29.0 26.0 24.0
ARNU093TNA4 29.0 26.0 24.0
ARNU123TNA4 31.0 29.0 26.0
ARNU153TNA4 32.0 29.0 26.0
ARNU183TNA4 34.0 30.0 26.0
ARNU243TNA4 40.0 38.0 35.0
ARNU363TNC4 44.0 41.0 38.0
[)UDPHV70Ǝ+LJK
ARNU243TMA4 41.0 38.0 35.0
ARNU283TMA4 41.0 39.0 35.0
ARNU363TMA4 44.0 41.0 37.0
ARNU423TMC4 45.0 41.0 38.0
ARNU483TMC4 46.0 42.0 40.0