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Istruzioni per installazione ed uso
Additional procedures for ATEX units:
102
Check all nameplate data to ensure they are consistent with the application: group, category, area,
maximum surface temperature, P1, n1 and M2 maximum limits, mounting position, ambient temperature;
Check for the absence of solar radiation or other heat sources;
In case of expected ambient temperatures <-20°C or >40°C contact in advance MOTOVARIO
TECHNICAL SERVICE;
Check there are no fumes or abrasive and/or corrosive dust;
Make sure not to be in close proximity to sources of ultrasound and/or ionizing radiation;
Check that the facility has adequate protection from lightning fall;
Check for any leakage of lubricant (if detected, stop the installation and consult MOTOVARIO
TECHNICAL SERVICE);
Eliminate any traces of dirt from the shafts and from the areas around the sealing rings, using materials
that do not generate electrostatic charges;
Check that the environment has been cleared from the presence of a potentially explosive atmosphere,
and that such condition is maintained for the whole duration of the installation;
Check that the components connected to the unit at both the input and output are ATEX approved;
Use the torque arms that can be supplied;
Ensure proper cooling of the motor through a suitable air flow from the fan side; check that there are no
obstructions or covers preventing the cooling of the unit;
Check that the warning light (or dipstick) for oil level check can be easily reached;
Install the unit and connect any sensor thermal protection- to be supplied separately and when
provided for - to adequate activation system. Specific instructions are given in the Annex to the
manual.
Provide a grounding system, via a cable securely attached to the mounting areas, making sure to
remove any paint in the contact area and using conductors of adequate cross section. Apply the
adhesive label, coming with the unit, in the installation area of the earthing.
QL0214 ∕ REV.6
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