Daikin FTN-P Series, Technical Manual

Page: 15 / 49

14
Sound Data
NC Curve
0
10
20
30
40
50
60
70
80
125 250 500 1000 2000 4000 8000
So
un
d
pr
es
su
re
le
ve
l (
dB
, r
ef
2
0µ
Pa
)
Octave-band frequency (Hz)
NC-20
NC-30
NC-25
NC-35
NC-40
NC-45
NC-50
NC-55
NC-65
NC-60
NC-70
M
L
H
Q
T
0
10
20
30
40
50
60
70
80
125 250 500 1000 2000 4000 8000
So
un
d
pr
es
su
re
le
ve
l (
dB
, r
ef
2
0µ
Pa
)
Octave-band frequency (Hz)
NC-20
NC-30
NC-25
NC-35
NC-40
NC-45
NC-50
NC-55
NC-65
NC-60
NC-70
M
L
H
Q
T
FTN10P/QS
FTN15P/QS