User manual
AKKU
TEC
2412 VdS
Document
page 13 / 16
0812G01B02-160422.docx
7
Servicing
In order to ensure the buffering ability of the power supply, the lead accumulators should be tested for their
buffering capability in regular intervals of 3 to 6 months.
The housing must be cleaned at least once per year depending on the degree of contamination.
7.1
Testing the lead accumulators
Start a forced buffer operation by disconnecting the mains. The lead accumulators must keep the required
autonomy time under nominal conditions. When the deep charge limit is reached, the external energy supply
switches off automatically.
7.2
Exchanging the lead accumulators
If not stated otherwise in the VdS approval certification, the lead accumulators must be exchanged once every
four years after the manufacturing date. Removal and installation of the lead accumulators may only be per-
formed by qualified personnel.
It must be performed as follows:
Removal of lead accumulators:
Perform the putting out of operation as decribed in section
Fehler! Verweisquelle konnte nicht ge-
funden werden.
Remove electrical connections from the lead accumulators (2-Pol CombiCon, Ubat)
Loosen the accumulator bracket, retain lead accumulator at the same time.
Remove lead accumulators
Installation of lead accumulators:
The installation is performed as described above only in reverse order.
Take care to ensure correct polarity. In case of a reverse polarity of the lead accumulator, the func-
tions “lead accumulator charge” and “Accumulator release during mains failure” remain blocked, the
simultaneous illumination of the LED-
Mains-OK
and the LED-
Error
will indicate the reverse polarity.
CAUTION
Take care to ensure the correct nominal voltage and the correct polarity when installing the lead
accumulators.
In case of non-observance there is the danger of severe burns by arcs.
CAUTION
Protect, i. e. insulate the poles when connecting lead accumulators. In case of short-circuits
there is the danger of severe burns by arcs or hot parts.
NOTE
Ensure the correct fixing of the lead accumulators after re-installation!
NOTE
Only use VdS approved lead accumulators. Never use different lead accumulator types, nor lead
accumulators of different manufacturers, nor old and new accumulators together.