Operation Noise (Sound Pressure); Noise Level Curve - Fujitsu Airstage J-IVS AJ 040LCLDH Series Design & Technical Manual

8. Operation noise (sound pressure)

8-1. Noise level curve

¢ Model: AJ040LCLDH
 Cooling
80
70
Rated
60
50
40
Low noise mode
30
20
10
0
63 125 250 500
Octave band center frequency, Hz
¢ Model: AJ045LCLDH
 Cooling
80
70
60
50
40
30
20
10
0
63 125 250 500
Octave band center frequency, Hz
8-1. Noise level curve
NC-65
NC-60
NC-55
NC-50
NC-45
NC-40
NC-35
NC-30
NC-25
NC-20
NC-15
1,000 2,000 4,000 8,000
NC-65
Rated
NC-60
NC-55
NC-50
NC-45
Low noise mode
NC-40
NC-35
NC-30
NC-25
NC-20
NC-15
1,000 2,000 4,000 8,000
 Heating
80
70
60
50
40
30
20
10
0
63 125 250
Octave band center frequency, Hz
 Heating
80
70
60
50
40
30
20
10
0
63 125 250
Octave band center frequency, Hz
- (03-15) -
NC-65
Rated
NC-60
NC-55
NC-50
NC-45
NC-40
Low noise mode
NC-35
NC-30
NC-25
NC-20
NC-15
500 1,000 2,000 4,000 8,000
Rated
NC-65
NC-60
NC-55
NC-50
NC-45
Low noise mode
NC-40
NC-35
NC-30
NC-25
NC-20
NC-15
500 1,000 2,000 4,000 8,000
8. Operation noise (sound pressure)