Effekta ACX11MST1K0000XL, Operating Manual

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UPS MTD-XL Maintenance and Service
MTD series 69
Remember that after the measuring the accumulators of the system will be dis-
charged. I.e. the UPS-system must operate in line mode or charging mode re-
spectively for several hours (min. 5 h), before it will again be operational at
about 80% capacity.
If the backup time is not measured due to local conditions or instructions, we
recommend a prophylactic replacement of the accumulators every two years,
to avoid any risk of insufficient backup time because of degenerated accumula-
tors.
11.2 Replacing the accumulators
Please note the safety guidelines before you begin with this procedure.
Complete the tasks in the specified sequence. You must use safety tools.
Before you begin with the task, make sure the UPS is switched off and
disconnected from the mains power supply.
Only authorized trained personnel may perform work on the battery bank.
The electrician must be especially trained in working with accumulators.
Be advised that even after switching-off the device, it may still carry high
voltages. This includes e.g. the voltage of the battery bank, load voltages
of network capacitators. You have to take appropriate safety measures to
avoid electrical shock.
Due to the risks mentioned above, this operating manual does not pro-
vide further details on how to replace accumulators.
The required authorized professional can receive a separate description
on request.