LG ABNW18GM1AO Manual page 28

MULTI/SINGLE
Indoor unit
7. Sound levels
ABNW60GM3A0 [UM60 N34]
80
70
60
50
40
30
20
Approximate
Hearing
Threshold
10
63 125 250 500 1 000 2 000 4 000 8 000
Octave Band Center Frequency (Hz)
High
▲ Mid
Low
NC-65
NC-60
NC-55
NC-50
NC-45
NC-40
NC-35
NC-30
NC-25
NC-20
NC-15
Ceiling concealed duct - Middle static pressure
28