Engineering Manual

Octave band center frequency (Hz)
Sound pressure level (0 dB = 20 µPa)
Octave band center frequency (Hz)
Sound pressure level (0 dB = 20 µPa)
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
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
LMCN125HV LMCN185HV
Acoustic Data
FOUR-WAY CEILING CASSETTE INDOOR UNITS
Figure 190: LMCN125HV and LMCN185HV Sound Pressure Level Diagrams.
CEILING-CASSETTE | 139
Four-Way Ceiling-Cassette
Due to our policy of continuous product innovation, some specications may change without notication.
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