PowerWalker VFI 30000TP 3_3 BE - Manual (Page 56)

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PowerWalker VFI 30000TP, 40000TP 3/3 BE/BI requires minimum maintenance.
1. If battery is switched off, loaded equipments will not be covered for power-off protection.
2. Make sure UPS vent are properly ventilated and clean side frames and fan vents from
dusts every half a year (switch off AC, battery cabinet and internal battery fuse prior to
cleaning)
8 Maintenance
Warning!
The Maintenance must be performed by a service engineer form the manufacturer or
form an agent authorised by the manufacturer.
The battery is key component of the UPS. The battery life depends on the ambient tem-
perature, charge and discharge times. High ambient temperature and deep discharge will
shorten the battery life.
1. Sealed maintenance-free lead acid battery be used in the standard. When being con-
nected to the utility power and if the UPS has been turned on, the UPS keeps charging the
battery and also offers the protective function of charging and discharging.
2. Keep the ambient temperature between 15℃ and 25℃ .
3. If the UPS has not been used for a long period, charging is recommended at the interval
of 3 months.
4. Normally, the battery should be charged and discharged every 4 to 6 months. Charging
should be started after the UPS shut down automatically in the course of discharging. In
the regions of hot climates, the battery should be charged and discharged every 2 months.
Moreover, the standard charging time should be no less than 10 hours.
5. It’s not recommended to replace batteries individually. Complete replacement should fol-
low instructions given by battery suppliers.
6. Under normal conditions, the battery life lasts 3 to 5 years. Should batteries be found in
poor performance, replacement should be done as soon as possible only by qualified per-
sonnel with proper training. Users are not allowed to replace without authorization.
8.1 Battery Maintenance