5. MAINTENANCE
zNormally, the life of battery is 3 years. But extreme operating condition and environment may shorten its
zTo replace batteries, contact qualified personnel.
zWhen 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.
zUse a vacuum cleaner to get rid of any dust that may rest on the opening of the fan.
zUnplug the UPS when it is not used for a long time.
zWhen 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,
zWhen moving your UPS, always handle it with care.
zAvoid spilling liquid on the UPS.
zThe 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.
22
SHEET 23 TO 24