Mitsubishi Electric PKFY-WL04NLMU-E.TH Technical & Service Manual page 7

PKFY-WL15NLMU-E.TH
90
80
70
60
50
40
30
20
Approximate minimum
audible limit on
continuous noise
10
63 125 250 500 1000
BAND CENTER FREQUENCIES, Hz
TCH122
FAN SPL(dB) LINE
High 45
Medium1 41
36
Medium2
Low 30
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
2000 4000 8000
7