Maintenance; Preventive Maintenance; Periodical Checks; Battery Drawers Replacement - LEGRAND Keor Mod Installation Manual

5. Maintenance

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.
INDICATION
LEGRAND declines all liability for any injury or damage caused by activities carried out differently from the instructions
written in this manual.
5.1

Preventive maintenance

The modular battery cabinet does not contain parts for preventive maintenance by the operator.
The operator must periodically perform:
- a general external cleaning;
- a check to the area surrounding the UPS system to ensure that there is free access to the units.
5.2

Periodical checks

The correct functioning of the external battery cabinet must be guaranteed by periodical maintenance inspections. These
are essential to safeguard the reliability of the battery cabinet.
These inspections should be made to determine if components, wiring, and connections exhibit evidence of overheating.
WARNING
The periodical checks involve operations inside the equipment in presence of dangerous voltages. Only maintenance
personnel trained by LEGRAND are authorized to intervene.
5.3

Battery drawers replacement

WARNING
A battery can present a risk of electrical shock and high short circuit current. Read and apply the safety instructions in
chapter 2 before operating on batteries
INDICATION
The battery drawers must always be added/removed in multiples of two (1 KB consists of two battery drawers). Always
replace just one KB at a time. If one KB is added, start from the free slots at the top which are covered by protective covers.
If a KB is completely removed, install the protective covers to block any access to live parts.
If the installation/removal procedure changes the total number of KB installed in the UPS, it is necessary to update this
setting from the control panel.
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