54 Maintenance
To clean or replace the intake air filters of the transformer
1. Loosen and remove the external screws of the
ventilation grille.
2. To open the ventilation grille, pull the top edge.
3. Carefully pull the air filter frame from the
ventilation grille.
4. Remove the plastic clips and the air filter support
from the air filter frame.
5. Examine and clean the ventilation grille with a
vacuum cleaner.
6. Clean the air filters with compressed air or
replace the air filters and the plastic clips.
Make sure that dust does not go into the
megawatt station.
7. Install the air filter frame into the ventilation
grille.
8. Close the ventilation grille and tighten the screws.
To remove the technical floor
1. Remove the screws.
2. Lift and remove the technical floor.
Inverter maintenance
For information on the maintenance of the inverters, refer to the PVS980 central inverters
commissioning and maintenance manual (3AXD50000046782 [EN]).
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