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Vaillant VR 50 - Page 42

Vaillant VR 50
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Care and maintenance
42
Operating and installation instructions 0020248967_00
9
A
B
4. Insert the batteries, making sure that
the poles are the right way round.
After inserting the batteries, the
product runs through a self-test for
approx. two seconds. Initialisation
then takes place.
5. After inserting the batteries, observe
the flashing sequence of the signal LED.