Vanderbilt V44 Duo Manuel D'installation Et Utilisation page 20

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Delay on/off
When this function is activated, the following happens: If a
code is programmed to open two doors, lock relay 2 is not
activated until door 1 has been opened and closed.
If door 2 is opened with the exit button, door 2 has to be
opened and closed before door 1 can be opened.
Note that door contacts must be connected and that Door
control must be activated for this to work.
This is how to activate Delay:
1 Press B and enter the current password.
2 Enter A80.
3 Enter 1.
To deactivate Delay, press 0 in step 3 instead.
Erase the memory
This is how to erase all programmed information (including
the password):
1 Press B and enter the current password.
2 Press SW1 on V44 Duo's circuit board.
3 Enter 112186.
4 Enter 112186 once again. The memory is now erased
and V44 Duo goes back to the factory settings.
V44 Duo Installation & User manual