Engineering Manual

PRODUCT DATA | 19
Product Data
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ACOUSTIC DATA
Indoor Units
Figure 11: Sound Pressure Level Diagrams for LSN120-181HSV5 Indoor Units.
LSN120HSV5 and LSN181HSV5 Sound Pressure Levels
Cooling
LSN120HSV5
Heating
10
20
30
40
50
60
70
80
63 125 250 500 1000 2000 4000 8000
Octave Band Sound Pressure Level (dB re 20μPa )
■ High
Octave Band Center Frequency (Hz)
● Low
▲
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 Sound Pressure Level (dB re 20μPa )
■ High
Octave Band Center Frequency (Hz)
● Low
▲
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
LSN181HSV5
Cooling Heating
10
20
30
40
50
60
70
80
63 125 250 500 1000 2000 4000 8000
Octave Band Sound Pressure Level (dB re 20μPa )
■ High
Octave Band Center Frequency (Hz)
● Low
▲
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 Sound Pressure Level (dB re 20μPa )
■ High
Octave Band Center Frequency (Hz)
● Low
▲
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
MediumMedium
Medium
Medium