Toa VX-3000DS CE-GB - Manual (Page 24)

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9. APPENDIX: Recommendations to the Power Supply Installation
Incorrect installations of the power supply manager VX-3000DS and its related equipment as batteries can
cause unnecessary fault indications. This information sheet gives you helpful hints and recommendations to
avoid it.
Please also take care on the battery handling hints.
Battery
Storage
The recommended storage conditions (duration, temperature) of charged and uncharged batteries must not be
exceeded to avoid a total discharge that destroys the battery. Consider the storage times listed below:
1. storage in factory, distributor, dealer and own company
2. in the project, when the VA system is installed but not in use, respective not powered, so that the
batteries will not be trickle charged´
The storage and discharge duration depend on the ambient temperatures and can be found in the battery data
sheets. The maximum storage durations are:
Ambient temperature Maximum time before re-charge
Less than 20°C 12 months
20°C – 30°C 9 months
20°C – 40°C 6 months
The production date is usually printed on the battery. In case you do not know the storage conditions of the
dealer or distributor, then it is preferable consider the worst case.
Installation of the Batteries
Do not install the batteries in unvented rooms and cabinet racks. When putting the batteries on the bottom of
the cabinet rack, then assemble minimum two height units (2 U) vented panels in front of them. The batteries
may emit inflammable gas that may cause fire or an explosion (the sealed batteries have a safety vent).
Important: The installation place of the batteries must be vented!
The batteries can be put on the bottom and its sides but not upside down.
Fix the batteries with the hook-and-loop-tape (fastener hook and fastener loop) provided with the VX-3000DS
to avoid them to shift away.
Figure 1: Permitted and forbidden installation positions of the battery