hergom H-03 Instructions D'installation, De Service Et De Maintenance page 26

D- Fan wiring diagram
Fig. – 9
E. - Characteristics of the ventilator, curve.
The longitude and diameter of the air conduction tubes
influence fuel wastage and when the volume of flow of useful
air transported decreases, fuel wastage increases, for this
reason this must be taken into account when creating the air
system. To do this correctly the ventilator curve is needed. On
the ordinates, fuel wastage is represented in mm.c.a. and the
3
volume of flow on the horizontal axis in m /h.
Fig.- 10
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