24
Installation
400
350
300
250
200
150
100
50
44
46
48
50
52
54
56
58
60
62
64
66
0
A
B
C
Diagram with pressure drop curve WD4240 (16 kW, Electric heated machine)
16
fan motor frequency (Hz)
Diagram with pressure drop curve WD4240 (19 kW, Gas heated machine)
Air flow 540 m
3
/h
Air flow 510 m
3
/h
Pressure drop vs fan frequency
Pressure drop
400
350
300
250
200
150
100
50
44
46
48
50
52
54
56
58
60
62
64
66
0
A
B
C
Pressure drop vs fan frequency
Air flow 580 m
3
/h
Air flow 540 m
3
/h
fan motor frequency (Hz)
Pressure drop
