AEC IST3-J, User Manual

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4 Operation and Maintenance User Manual
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4.4 Periodic Preventative Maintenance
To improve the efficiency and reliability of the UPS, perform the following maintenance regularly.
 Clean the UPS by dry cloth regularly. Don't use liquid or spray cleaner. Before cleaning,
shut down the UPS.
 Check if the wiring of input and output is firmly and connect well.
 Check the working status of cooling fans regularly. Prevent sundries from blocking the air
outlet. If damaged, please replace it in time.
 Check the battery voltage and the working status of UPS regularly.
4.5 Battery Maintenance
The working life of battery is based on the environment temperature and discharge times.
Using battery in the high temperature for a long time or discharging battery deeply will reduce
the working life of battery.
 Charge the battery for 10 hours before using. During charging, the UPS still can be used,
but if power outage at the same time, the discharging time may be less than the standard
value.
 Generally, charge and discharge the battery once every 4 to 6 months. Discharge the
battery till under-voltage and power off and then charge it. In high temperature area,
charge and discharge the battery once every 2 months. The charging time for the standard
battery should be more than 10 hours every time.
 If the UPS hasn't been used for a long time, it is recommended to charge the battery more
than 10 hours every three months.
 Generally, the working life of battery is 3 to 5 years. If battery is not so good, replace it in
time. The battery replacement should be performed by authorized professional.
4.6 Troubleshooting
As shown in Table4-1, it only includes some common fault diagnosis. If any doubt, contact the
local office or distributor for details.