LG Multi V ARNU093TUD4 Engineering Manual page 18

ONE-WAY CEILING CASSETTE
Acoustic Data
Sound Pressure Levels
Figure 7: Sound Pressure Measurement Location.
4.9 feet
Microphone
Table 8: One-Way Ceiling Cassette Indoor Unit Sound Pressure Levels.
Model
ARNU073TUD4
ARNU093TUD4
ARNU123TUD4
ARNU183TTD4
ARNU243TTD4
Figure 8: ARNU073TUD4, ARNU093TUD4, and ARNU123TUD4 Sound Pressure Level Diagrams.
ARNU073TUD4
18 | ONE-WAY
• 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
(acoustic absorption coefficient) of a particular room in which the unit was installed.
High Fan Speed
32.0
35.0
38.0
40.0
43.0
ARNU093TUD4
©
Sound Levels dB(A)
Medium Fan Speed
29.0
34.0
35.0
37.0
40.0
ARNU123TUD4
Low Fan Speed
25.0
32.0
32.0
35.0
36.0