inform ETR EVO Series, Installation And Operating Manual

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ETR EVO UPS User Manual (Ver. 1.0) Page 52
8. MAINTENANCE
Maintenance includes fully control of all the electronic and mechanical components in UPS. And they
needed to be replaced after their lifetime is over. Systematic maintenance ensures to improve UPS’s
efficiency and to extend life-time. INFORM recommends every 3 to 6 months of period for systematic
maintenance after warranty by authorized service.
8.1. Batteries
The life of batteries strongly depends on the usage and environmental conditions. (ambient
temperature, frequency of electricity cuts, etc.). There are also other factors like the number of
charge-discharge cycles and discharge depth. Performing battery test can provide you information
about battery condition. But not to come acrross any unrequired condition during electricity cut, the
batteries should be maintained periodically by authorized Technical Personnel.
All the maintenance operations should be done by authorized Technical Service
Personnel.
Hazardous voltage and high temperature metal parts inside even if the UPS is disconnected.
Contact may cause electric shock and burns. All operations except replacing battery fuses
shall be carried out by the authorized Technical Personnel only.
Some parts inside the UPS (terminals, EMC filters and measurement circuits) are still
energized during maintenance bypass operation. In order to deenergize all UPS parts, circuit
breakers on mains and bypass mains distribution panels feeding the UPS and circuit breakers
on external battery cabinet shall be brought to “OFF/0” position. Internal batteries shall also
be isolated from the system.
Danger of explosion and fire if the batteries of the wrong type are used.
Do not open or multilate batteries. Released electrolyte is harmful to the skin and
eyes.
It may be toxic.
When replacing batteries; use the same quantity and type that were originally fitted.
Batteries must always be disposed of according to local environmental laws.