48 | CONVERTIBLE
MUL
TI V Floor
, Suspended, Convertible Indoor Unit Engineering Manual
Due to our policy of continuous product innovation, some specifications may change without notification.
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Acoustic Data
Sound Pressure Levels
Model
Sound Levels dB(A)
High Fan Speed
Medium Fan Speed
Low Fan Speed
ARNU093VEA2
36
32
28
ARNU123VEA2
38
36
30
Table 31: Convertible Surface Mounted Indoor Unit Sound Pressure Levels.
Figure 29: ARNU093VEA2 and ARNU123VEA2 Sound Pressure Level Diagrams.
Figure 28: Sound Pressure Measurement Location.
• Measurements are taken 3.3 feet 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.
CONVERTIBLE SURFACE MOUNTED
3.3 ft.
Microphone
3.3 ft.
ARNU093VEA2
ARNU123VEA2
10
20
30
40
50
60
70
80
63
125
250
500
1000 2000 4000 8000
Octave Band Center Frequency (Hz)
Octave Band Sound Pressure Level (dB re 20µPa
)
Octave Band Sound Pressure Level (dB re 20µPa
)
NC-15
NC-20
NC-25
NC-30
NC-35
NC-40
NC-45
NC-50
NC-55
NC-60
NC-65
Approximate
Hearing
Threshold
10
20
30
40
50
60
70
80
63
125
250
500
1000
2000
4000
8000
Octave Band Center Frequency (Hz)
NC-15
NC-20
NC-25
NC-30
NC-35
NC-40
NC-45
NC-50
NC-55
NC-60
NC-65
Approximate
Hearing
Threshold
