NCF
10
Example of lifting NCF fans.
Installation
The fan does not require the preparation of a special
machine bed for its installation. A well-leveled concrete
surface that can support the weight of the fan is suf-
ficient.
Always use anti-vibration supports and
couplings to prevent the transmission of
vibrations while the fan is running.
The support base must be perfectly level and flat to
prevent torsion effects or misalignment of the supports:
if necessary, install metal shims between the machine
base and the concrete surface to ensure a perfect fit.
Use the factory-fitted anchoring points and take care
not to deform the fan structure while tightening bolts.
All connecting tubing must be supported separately
and must be axially aligned with the fan’s intake and
outlet nozzles, to prevent any deformation occurring
while tightening the bolts.
All installation work must only be
carried out by qualified and authorised
personnel using suitable equipment.
Minimum distances between components
If the available space permits, in installations where
the intake is connected to a pipe, we recommend fit-
ting a straight length of pipe with a length approximate-
ly 2.5 times the diameter of the fan rotor, to guarantee
correct air flow into the intake.
Minimum installation distances with intake pipe.
With installations with an open air intake, we recom-
mend leaving a distance equal to approximately 1.5
times the diameter of the fan rotor between the fain
intake and the nearest wall or machine.
Minimum installation distances with open intake.
Connections to pipes
Connections between the fan and pipes must be made
ensuring that all components are correctly aligned and
that there are no obstructions in the tubing caused by
gaskets or flexible parts. The weight of the tubing must
not be supported by the fan and care must be taken
not to deform any part of the fan during tightening of
the connections to the pipes.
NB! We do NOT recommend installations with
an open air intake.
Electrical connections
The fan’s power supply line must have a sufficiently
high power rating.
Connection to the main power grid must only be car-
ried out by qualified personnel. Also, the client is
responsible for the entire electrical system up to motor
terminal board.
We remind you of the importance of installing a safe
connection to earth for the fan. The earth connec-
tion system must comply with legislation in effect in