Airwell EFL 100-3R410, Technical Manual, Page: 191 / 328

4
4 - 5 8
3-WAY FLOW LOGIC Unit Specifications
3 . 2-Way Air Discharge Semi-concealed Type
MODEL : ST-NK2FL 9, ST-NK2FL 12
SOUND LEVEL : 30 dB(A)
LOW
HIGH
STRONG STRONG
STRONG STRONG
24 dB(A)
27 dB(A)
CONDITION :
MODEL : ST-NK2FL 7
SOUND LEVEL : 33 dB(A)
LOW
HIGH
26 dB(A)
29 dB(A)
CONDITION :
MODEL : ST-NK2FL 18
SOUND LEVEL : 35 dB(A)
LOW
HIGH
29 dB(A)
33 dB(A)
CONDITION :
MODEL : ST-NK2FL 24
SOUND LEVEL : 38 dB(A)
LOW
HIGH
33 dB(A)
35 dB(A)
CONDITION :
10
20
30
40
NC-20
NC-30
NC-40
NC-50
4000 63 125 250 8000 2000 1000 500
60
50
10
20
30
40
NC-20
NC-30
NC-40
NC-50
4000 63 125 250 8000 2000 1000 500
60
50
NC-20
NC-30
NC-40
NC-50
4000 63 125 250 8000 2000 1000 500
60
50
40
30
20
10
NC-20
NC-30
NC-40
NC-50
4000 63 125 250 8000 2000 1000 500
60
50
40
30
20
10
Strong
Weak
Both 50Hz and 60Hz
Frequency at center of sound pressure band (Hz)
Frequency at center of sound pressure band (Hz) Frequency at center of sound pressure band (Hz)
Frequency at center of sound pressure band (Hz)
Overall
Sound pressure le
v
e
l (dB)
(0dB = 0.0002
μ
bar)
Overall
Sound pressure le
v
e
l (dB)
(0dB = 0.0002
μ
bar)
Approximate
minimum audible
limit for
continuous noise Approximate
minimum audible
limit for
continuous noise
Overall
Sound pressure le
v
el (dB)
(0dB = 0.0002
μ
bar)
Approximate
minimum audible
limit for
continuous noise
Overall
Sound pressure le
v
el (dB)
(0dB = 0.0002
μ
bar)
Approximate
minimum audible
limit for
continuous noise
1.5 m directly below unit 1.5 m directly below unit
1.5 m directly below unit 1.5 m directly below unit
3 -4. Noise Criterion Curves
ST-NK2FL
04-218 Airwell-4_2&3.qxp 01/06/2007 13:20 Page 58