Preventive Maintenance; Maintenance Tasks - Ingecon Sun 250 M220 Indoor Installation Manual

Installation manual

7. Preventive maintenance

The recommended preventive maintenance tasks must be carried out at least annually, except for the checking the
fans and filters, which must be done monthly.
The various maintenance tasks must be performed by qualified personnel. Danger of electric shock.
To access the various compartments, take into account the safety recommendations in previous
chapters.
All maintenance checks listed here should be done with no voltage on the inverter and in safe condi-
tions for handling.
The following paragraphs describe the actions to follow for proper installation of IngecOn Sun PowerMax inverters.

7.1. Maintenance tasks

check status of the enclosure
A visual check of the status of the enclosure must be performed, verifying the status of locks, doors and handles and
the unit fixings at both lower and, if any, upper anchorage points. In addition, the condition of the enclosure must be
checked for dents, scratches or rust that might degrade the cabinet or cause it to lose its protection classification. If
this type of defects are noticed, the parts affected must be substituted.
check the status of the cables and terminals
• check the correct path of the cables so they do not come into contact with live parts.
• check for insulation faults and hot spots by checking the colour of the insulation and terminals.
Tightness of strip fasteners and power cables
check tightness in accordance with the following torques:
As per DIn 13.
In order to keep the nuts and bolts of the equipment in a proper condition, it is important while tight-
ening them to make sure there is no dirt or shavings on the threads and to apply a suitable lubricant.
check strips
Visually check that the Ac feeds comply with safe distances and maintain their initial electrical properties.
check that there is no moisture inside the cabinet
If moisture exists, dry before making electrical connections.
AAV2000IKI01
Threads dimensions Tightening torque (nm)
M8
M10
M12
24
47
78
Ingeteam
65