Becker Centronic EasyControl EC715 Notice De Montage Et D'utilisation page 50

Overwriting the master
Switch off the power supply to the receiver then switch it back on after
5 seconds, or press the programming button or radio switch on the receiver.
▻ The radio receiver remains in programming mode for 3 minutes.
To ensure that the new master transmitter is programmed in
the desired radio receiver only, all other receivers which are
connected to the same power supply must be deactivated
from the programming mode. To do so, after switching the
power back on, execute a drive or stop command using the
transmitter for the given receivers.
10s
50 - en
Press the programming button of the new master
transmitter when programming mode is active for
10 seconds.
▻ The receiver confirms.
► The new master transmitter has now been
programmed and the old master transmitter
overwritten.