7. Sound Data
Duct S
Sound Power level
NOTE
•
Specifications may be subject to change without prior notice
- Sound power level is an absolute value that a sound source
generates.
- dBA = A-weighted sound power level.
- Reference power : 1pW.
- Measured according to ISO 3741.
Unit: dB(A)
Model
Cooling
CNH18HDB (AC018BNHDCH/AA)
CNH24HDB (AC024BNHDCH/AA)
61
62
2)
CNH24HDB (AC024BNHDCH/AA)
•
NC Curve
1) CNH18HDB (AC018BNHDCH/AA)
3)
CNH30HDB (AC030BNHDCH/AA)
4)
CNH36HDB (AC036BNHDCH/AA)
CNH30HDB (AC030BNHDCH/AA)
CNH36HDB (AC036BNHDCH/AA)
63
65
70
70
70
65
65
65
NC 70
60
60
NC 70
60
NC 60
55
55
NC 60
55
NC 55
50
50
NC 55
50
NC 50
45
45
NC 50
45
NC 45
40
40
NC 45
40
NC 40
35
35
NC 40
35
NC 35
30
30
NC 35
30
NC 30
25
25
NC 30
25
NC 25
20
20
NC 25
20
NC 20
15
15
NC 20
15
70
65
60
55
50
45
40
35
30
25
20
15
10
NC 15
10
10
NC 15
10
5
5
5
5
0
0
0
0
125
250
500
1000
2000
4000
8000
A
125
250
500
1000
2000
4000
8000
A
Octave Band Center Frequency(Hz)
Octave Band Center Frequency(Hz)
So
un
d
Po
we
r L
ev
el
(dB
)
So
un
d
Po
we
r L
ev
el
(dB
)