7 Maintenance and Service
Vertiv™ Liebert® Lithium-ion UPS systems (including lithium-ion modules) require regular maintenance and maintenance
during long term operation. Effective maintenance and maintenance of lithium battery modules can reduce the risk of lithium
battery module failure and provide a longer service life. This chapter mainly describes the preventive maintenance,
replacement, and quick diagnosis of common abnormal problems of the lithium battery module.
7.1 Maintenance Precautions
The routine inspection and maintenance of the lithium battery module can be carried out by personnel who have received
relevant training, and the inspection and replacement of its components should be carried out by Vertiv authorized
professionals. The parts behind the protective cover that can be opened only by tools are not operable by users. Only
qualified maintenance personnel are allowed to open the protective cover. When maintaining the lithium battery module, use
the insulated tools to ensure the safe electrical operation.
When using lithium battery modules, pay attention to the below points:
• Even if the lithium battery module is not running, there is still a deadly dangerous voltage inside it. Before
maintenance of the module, to ensure safety, it is necessary to measure the voltage between the site to be
operated and the ground to ensure that it is lower than the dangerous voltage value, that is the DC is lower than
60 VDC.
• When using lithium battery modules, do not wear watches, bracelets, rings, and other conductive items on your
hands.
• When in doubt about the use of the equipment, ask the personnel familiar with the equipment.
7.2 Preventive Maintenance
To improve the reliability and stability of the lithium battery module operation, it is necessary to complete the preventive
maintenance work during the use of regular inspections:
• Regularly inspect the operating environment, check the temperature and humidity of the working environment of
the lithium module, and keep record of the data to ensure that the lithium module operates in the best
environmental conditions.
• Regularly check the operation of the fan of the supporting UPS, if the fan operation fails, immediately replace the
corresponding power module.
• If the operation site is dusty, clean or replace the dust net of the cabinet every half a year to avoid the
temperature inside the cabinet rising due to poor air ducts, which affects the operation life of lithium battery
modules.
• Regularly check the SOC and SOH of all lithium modules to ensure that the lithium modules are in good
operating condition.
• Use the upper computer or use the network background at any time to monitor the operating status of the entire
machine, alarms or failures in time to troubleshooting.
7.3 Module Replacement
IMPORTANT! Module replacement operations must be performed by Vertiv service personnel.
7 Maintenance and Service Proprietary and Confidential ©2024 Vertiv Group Corp. 37
Vertiv™ Liebert® APM2 Lithium Battery Module Installer/User Guide
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