Airwell DAF009 - Page 68

SOUND LEVEL CHARACTERISTICS
DAF 030 Cooling DAF 030 Heating
Noise spectrum & NC Curves
NC15
NC20
NC25
NC30
NC35
NC40
NC45
NC50
NC55
NC60
NC65
0
10
20
30
40
50
60
70
80
90
63 125 250 500 1000 2000 4000 8000
Octave Band Sound Pressure Level [dB re 20 mPa]
Octave Band Center Frequencies [Hz]
Noise spectrum & NC Curves
NC15
NC20
NC25
NC30
NC35
NC40
NC45
NC50
NC55
NC60
NC65
0
10
20
30
40
50
60
70
80
90
63 125 250 500 1000 2000 4000 8000
Octave Band Sound Pressure Level [dB re 20 mPa]
Octave Band Center Frequencies [Hz]
FAN SPEED LINE
HI
ME
LO
DAF 036 Cooling DAF 036 Heating
7-4 SM YIF 2-A.1 GB
Noise spectrum & NC Curves
NC15
NC20
NC25
NC30
NC35
NC40
NC45
NC50
NC55
NC60
NC65
0
10
20
30
40
50
60
70
80
90
63 125 250 50 8000
Octave Band Ce
Octave Band Sound Pressure Level [dB re 20 mPa]
0 1000 2000 4000
nter Frequencies [Hz]
Noise spectrum & NC Curves
NC15
NC20
NC25
NC30
NC35
NC40
NC45
NC50
NC55
NC60
NC65
0
10
20
30
40
50
60
70
80
90
63 125 250 500 1000 2000 4000 8000
Octave Band Sound Pressure Level [dB re 20 mPa]
Octave Band Center Frequencies [Hz]
FAN SPEED LINE
HI
ME
LO