Nc Curves; Fan Characteristics Curves - Mitsubishi Electric PUD-P-YMF-C Manual

3-2. NC Curves

PUD-P250YMF-C (External static
80
70
60
50
40
30
20
10
Approximate minimum
audible limit on
continuous noise
0
63 125 250
OCTAVE BAND CENTER FREQUENCIES (Hz)
PFD-P250VM-A
80
70
60
50
40
30
20
10
Approximate minimum
audible limit on
continuous noise
0
63 125 250
OCTAVE BAND CENTER FREQUENCIES (Hz)

3-3. Fan Characteristics Curves

PFD-P250VM-A
700
600
500
400
(Output 2.2kW)
300
Internal resistance
(middle-high efficient filter )
200
Internal
resistance
100
0
144
140 150
pressure 0Pa)
NC70
NC60
NC50
NC40
NC30
NC20
500 1000 2000 4000 8000
(External static
pressure 120Pa)
High speed
NC70
NC60
NC50
NC40
NC30
NC20
500 1000 2000 4000 8000
: 50/60Hz, standard
: 50/60Hz, with middle-high efficient filter box
Fan rotation speed
Output 3.7kW
1100rpm
1000rpm
900rpm
800rpm
176
160 170
3
Air volume (m /min)
PFD-P500VM-A
80
70
60
50
40
30
20
10
Approximate minimum
audible limit on
continuous noise
0
63 125 250
OCTAVE BAND CENTER FREQUENCIES (Hz)
PFD-P500VM-A
1000
900
800
Output 7.5kW
700
600
Output 5.5kW
500
400
300
200
800rpm
Internal resistance
100
0
270 288
180 260 280
8
(External static
pressure 120Pa)
High speed
NC70
NC60
NC50
NC40
NC30
NC20
500 1000 2000 4000 8000
: 50/60Hz, standard
Fan rotation speed
1200rp
1100rpm
1000rpm
900rpm
Standard
330 352
300 320 340 360
3
Air volume (m /min)