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Due to our policy of continuous product innovation, some specications may change without notication.
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28 | PRODUCT DATA
Single Zone Vertical Air Handling Unit Engineering Manual
Octave Band Center Frequency (Hz)
Octave Band Sound Pressure Level (0dB = 20μPa)
10
20
30
40
50
60
70
80
63 125 250 500 1000 2000 4000 8000
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
▲ Cooling
Heating
LUU188HV , LUU248HV
Outdoor Unit Sound Pressure Diagrams
Figure 16: LUU188HV , LUU248HV Sound Pressure Level
Diagram.
Octave Band Sound Pressure Level (0dB = 20μPa)
Octave Band Center Frequency (Hz)
10
20
30
40
50
60
70
80
63 125 250 500 1000 2000 4000 8000
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
▲ Cooling
Heating
LUU368HV
, LUU428HV
, LUU488HV
Figure 17: LUU368HV, LUU428HV, LUU488HV Sound Pres-
sure Level Diagram.
ACOUSTIC DATA
Outdoor Units
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