15
S
tart-up
Before starting the fan you must know what is described
above and rely on skilled professionals who are aware of
all the problems related to explosion-proof environments
(ATEX).
In addition to this manual, consider all the requirements
and information described in the basic manual for your
model of the fan.
CHECKS wITH THE FAN STATIONARy
Make sure before commissioning that the constructive class of the fan is suitable
for the environment in which it will be used (internal and external class).
Some checks, controls and/or procedures to be performed
are closely linked.
You cannot do anything without considering the problems
derived or related to it.
- Some checks need to be carried out in different situations and periods of the
life of the fan and the procedures are described in the MAINTENANCE chapter
under the INSPECTIONS heading.
In the case of fans equipped with an inspection door you can inspect the inside
of the fan.
For fans not equipped with an inspection door for the internal inspection, remove
the ducts and if necessary the transmission motor unit.
- Check by rotating the impeller manually and very slowly for there to be no
interference between the impeller and the nozzle.
Perform the "Check the distance between the impeller
and nozzle (air gap)" procedure described in the relevant
chapter.
- Inspect the fan from the outside and inside so as to check its integrity, that there
are no foreign bodies, dirt, faults, etc.
- Verify the integrity of the seals, near the crankshaft passage as well as on the
ducts next to the fan.
- Where applicable, connect the temperature, vibration and rotation speed moni-
toring devices, according to that described herein and in the reference technical
documentation, in particular to setting the control thresholds properly.
- Make sure that all the earths of the fan are connected properly. Once this is
done take the measurement of the earth resistance.
Summary of Contents for CH Series
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