AEG Protect B. 750 PRO Operating Instructions Manual page 18

If the UPS is brought from a cold environment into the room
where it will be set up, condensation may occur. In such
cases, allow the device to acclimatise for at least 2 hours.
The UPS must be completely dry before it may be
commissioned.
Never connect the mains input and UPS output to one an-
other!
Ensure that liquids or foreign bodies do not end up in the
UPS!
Do not block the ventilation openings of the device! Ensure
that children do not insert objects into the ventilation
openings!
Do not connect household appliances, such as hair dryers,
to the UPS! Also use caution when operating with loads
involving motors. Feeding back into the inverter, e.g. due to
brief generator operation of the load, must absolutely be
avoided.
The mains connection should be located near the device and
easily accessible so as to make disconnection of the AC input
or of the plug easier!
Do not unplug the mains connection cable from the UPS or
the building installation socket (safety socket) during
operation, as the protective earthing of the UPS and all
connected electrical loads will be nullified.
Risk of electric shock!
The components inside the UPS are still
connected to the battery even after the mains
voltage is disconnected and can therefore cause
electric shocks. For this reason, the battery circuit
must absolutely be broken before service or
maintenance work may be carried out!
Battery replacement and service must be carried
out, or at least monitored, by a professional who
has experience with batteries and the required
precautionary measures!
Keep unauthorised persons away from the
batteries!
18
EN