LG Multi V ARNU093TUD4 Engineering Manual page 72

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