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Trimod HE
U
ser manual
43
DANGER
INSTALLATION and ORDINARY MAINTENANCE operations must be carried out only by SKILLED TECHNICIANS
(paragraph 2.2.1). EXTRAORDINARY MAINTENANCE operations must be carried out only by LEGRAND TECHNICAL
SUPPORT SERVICE.
7.1
Installation
DANGER
The operator is not authorized to install and connect electrically the UPS. These operations are the sole preserve of a
skilled technician (paragraph 2.2.1) who must follow the instructions addressed to him in the installation and maintenance
manual.
LEGRAND declines all liability for any injury or damage caused by activities carried out differently from the instructions
written in this manual or by a skilled technician who doesn’t follow the requirements written in the installation and
maintenance manual.
7.2
Preventive maintenance
The UPS does not contain parts for preventive maintenance by the operator.
The operator must periodically perform:
- a general external cleaning;
- a check to verify the absence of alarms on the display;
- a check to verify the correct functioning of the fans on each power module.
After the first year of life of the UPS, check the batteries every six months through the “battery calibration” function to
guarantee the optimal operation and continuous protection of the connected load. With this function, the UPS detects
the discharge curve of the batteries in order to provide precise information on the charging state.
Enter the main menu to perform this operation and follow the path: Tools
Batteries
Batt. Calibration
Press the ENTER key to confirm the choice.
Contact the LEGRAND Technical Support Service in case of problems.
7.3
Periodical checks
The correct functioning of the UPS unit must be guaranteed by periodical maintenance inspections. These are essential
to safeguard the reliability of the UPS.
WARNING
The periodical checks involve operations inside the equipment in presence of dangerous voltages. Only maintenance
personnel trained by LEGRAND are authorized to intervene.
7.4
Ordinary maintenance checks
Contact a skilled technician if it is necessary to replace or add power modules, battery drawers or external battery cabinets.
7.5
Extraordinary maintenance
Contact the LEGRAND Technical Support Service if there are failures that require the access to internal parts of the UPS.
7.
Maintenance
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