Samsung Slim Duct-CNH LDB Technical Data Book page 51

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.
• NC Curve
1) CNH09HDB (AC009BNHDCH/AA)
70
65
60
55
50
45
40
35
30
25
20
15
10
5
0
125 250 500
Octave Band Center Frequency(Hz)
3) CNH18HDB (AC018BNHDCH/AA)
70
65
60
55
50
45
40
35
30
25
20
15
10
5
0
125 250 500
Octave Band Center Frequency(Hz)
NC 70
NC 60
NC 55
NC 50
NC 45
NC 40
NC 35
NC 30
NC 25
NC 20
NC 15
1000 2000 4000 8000
NC 70
NC 60
NC 55
NC 50
NC 45
NC 40
NC 35
NC 30
NC 25
NC 20
NC 15
1000 2000 4000 8000
2) CNH12HDB (AC012BNHDCH/AA)
70 70
65
65
60
60
55
55
50
50
45
45
40
40
35
35
30
30
25
25
20
20
15
15
10
10
5
5
0
A 0
125
4) CNH24HDB (AC024BNHDCH/AA)
70 70
65 65
60
60
55 55
50 50
45
45
40 40
35 35
30 30
25 25
20 20
15 15
10
10
5 5
0 0
A 125
Model
CNH09HDB (AC009BNHDCH/AA)
CNH12HDB (AC012BNHDCH/AA)
CNH18HDB (AC018BNHDCH/AA)
CNH24HDB (AC024BNHDCH/AA)
250 500 1000 2000 4000
Octave Band Center Frequency(Hz)
250 500 1000 2000 4000
Octave Band Center Frequency(Hz)
Unit: dB(A)
Cooling
49
50
56
58
70
65
60
NC 70
55
NC 60
50
NC 55
45
NC 50
40
NC 45
35
NC 40
30
NC 35
25
NC 30
20
NC 25
15
NC 20
10
NC 15
5
0
8000 A
70
65
60
NC 70
55
NC 60
50
NC 55
45
NC 50
40
NC 45
35
NC 40
30
NC 35
25
NC 30
20
NC 25
15
NC 20
10
NC 15
5
0
8000 A