PowerWalker VFI 30000TP 3_3 BE - Manual (Page 39)

34
EN
Notice!
The most common battery type used in UPS installations is the valve regulated bat-
tery. Valve regulated cells are not sealed. The amount of gas given off is less than for
flooded cells, but when planning the battery installation, allowance must be made for
adequate ventilation and heat dissipation. Valve regulated cells are not completely
maintenace- free. They must be kept clean and their connections checked periodically
to ensure they are tight, and that there is no evidence of corrosion. It is inevitable that
the batteries will lose charge during transportation and storage; before attempting to
carry out an autonomy test, ensure that the batteries are fully charged as this may
take several hours. Cell performance typically improves after a few discharge/recharge
cycles.
5.5 Connecting the external battery
Before connecting the external battery, please read the notice and warning label on
the UPS.
Warning!
In the event of malfunction, the battery cabinet chassis or battery cabinet frames may
become live!
Warning!
Special care should be taken when working with the battery cabinet associated with
the PowerWalker VFI 3/3 Series 30 - 40 kVA. When the battery cabinet is connected
the overall voltage exceeds 400V. It is very important to ensure that the batteries are
installed separately, in a dedicated battery cabinet.