Maintenance And Cleaning - Vortice QBK HE SAL-Serie Betriebsanleitung

ENGLISH
Maintenace and cleaning
Fig. 6
It is recommended a complete check up of the fan and
its installation after the first 24 hours after start up, by
electronically disconnecting it from the network in
order to avoid accidents. Vortice suggest usage of
security switches specially made for this purpose.
General notes for the maintenance
During maintenance operations, please take note of
the following points:
1. The functioning of the fan must be smooth and free
of vibrations.
2. The absorbed current (A), measured
tools, cannot exceed the nominal consumption
specified in the motor's plate.
3. All screwed elements must be checked that they
have not been loosened.
4. In applications where the fan works in a high dust
or greasy air environment, the blades of the
impeller or propeller can be unbalanced due to the
accumulation of particles and consequently
damage the bearings. Therefore, cleaning of the
rotating element must be done periodically using
the maintenance stops or whenever the fan
vibrates or does not work correctly. To ensure a
correct functioning, never leave dust inside the fan.
5. In case of applications in chemically abrasive
environments impeller blades could worn out. In
case of unbalancing, it need to replace damaged
parts.
6. In case of stored fans or not functioning for periods
of two or more years, it is recommended a full
inspection of rotating bodies, along with a check
of any rusts and residual greases. In general, a
good mantaining of metal surfaces is required.
Safety devices
The safety systems required to comply with the EC
Machinery Directive relating to this appliance must be
tested at least once every 90 days.
In particular, to ensure an easy and safety
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maintenance, Vortice strongly suggest the use of
ON/OFF safety switches, manually resettable.
The inspection on safety devices, must ensure a
properly and reliable working.
To perform a valid test is necessary:
1. to match all technical documents (supplied with the
machine and safety devices) with adopted
mounting details;
2. to take all the necessary precautions and, when the
appliance is operating normally, cause the safety
systems to cut in one at a time. Make sure that the
power supply to the appliance cuts out and that all
moving parts come to a stop (by opening the
inspection panel); repeat this operation twice but
not consecutively with all the safety devices fitted
to the appliance.
3. check that the static and passive safety systems
are properly positioned and fastened in place;
check especially that shields protecting moving
parts are properly fastened in place and can only be
removed using special tools.
Records must be kept of these 90-day checks and
must show the outcome of the tests carried out.
Cleaning
Fig. 7
Periodically, need to ensure a correct maintenance
and cleaning of all installed elements.
This is required to avoid accumulations of dirt, dust,
grease, etc.: the main cause of fires and their
expansion.
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Motorfan assembly
Periodically, check all the elements of the motorfan
assembly: motor support, motor, motor shaft, impeller,
etc.. Also need to check inlet cone and circular flange.
In case of noises or problems: contact the supplier.