Becker Centronic VarioControl VC320 Notice De Montage Et D'utilisation page 21

Switch the tubular drive on as follows:
Tubular drive
Programme a transmitter into the receiver (see chapter "Programming the
transmitter [} 23]")
Ensure that there is optimal radio reception.
Check the direction of rotation of the tubular drive. Should
the direction of rotation be incorrect, swap connecting wires
and
Washer
on the tubular drive.
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