Maintenance - Delta 3KVA User Manual

5. MAINTENANCE

Normally, the life of battery is 3 years. But extreme operating condition and
environment may shorten its life-span.
To replace batteries, contact qualified personnel.
When UPS has been unused for a period of time, the batteries will discharge
slightly. It is recommended to charge the UPS once every 3 months.
Use a vacuum cleaner to get rid of any dust that may rest on the opening of
the fan.
Unplug the UPS when it is not used for a long time.
When cleaning the plastic case or front panel, only use a soft, dry cloth. If
the case or front panel is very dirty, use a neutral, non-abrasive detergent. Do
not use alcohol or ammonia based solutions.
When moving your UPS, always handle it with care.
Avoid spilling liquid on the UPS.
The equipment should be repaired and installed by individuals with previous
training.
When installing this equipment, it should be noted that the leakage current of the UPS and
its loads must not exceed 3.5mA in total for safety.
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SHEET 23 TO 24