If the three phase main supply has a phase voltage of 230V AC, the electrician
has to access to the motor terminal box and set a delta configuration as we
indicated in Figure 13B.
Connect the extractor to earth using the available connection in the motor.
When using a plug, an earth connection is obligatory.
Make sure that there is a thermal-magnetic trip unit and a residual current
device of the correct ratings available for each installed unit.
The electrical connection between the extractor and the electrical supply must
be protected by, at least, a hermetic sealed junction box.
7
INITIAL START-UP
7.1
Before Starting up the Extractor:
Check that no objects or tools have been left inside the machine.
Check that cement or lime residues have not fallen on the blades during the
installation; the resulting fan imbalance would cause harmful vibrations that
would result in rapid wear on the impeller bearing.
Check that the protection meshes are closed and correctly secured to the
machine.
The machine should never be operated without the standard mesh protection
guard correctly installed. If it is damaged, it should be replaced immediately and
always with S&P original spare parts, as our replacement parts guarantee the
safety levels required by the Directive and by technical standards.
Due to the existing risks derived from the presence of moving parts and from
the air extracted by the extractor, it is the user's responsibility to protect the fans
outlet area using barriers to prevent access by unauthorised personnel. Mark
the restricted access area using the corresponding danger and/or warning
signs.
WARNING: The mesh protection guards are a passive safety device, and it is
strictly forbidden to remove or force them.
Before starting up the air extractor, it is essential that the presence and the
correct position of the metallic mesh protection guards are checked.
Ensure that all present personnel are at an adequate safe distance from the
machine.
Check that the tension in the drive belt is correct, following the procedure
referred to in the maintenance section of this Manual (chapter 8).
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