SYN-INT-E01
19
Lock Activation
1. Exit any adjustment mode to manually adjust the set point
at the desired maximum value.
2. Simultaneously press down the + and - buttons during
10 seconds (note that after 3 seconds, the SET icon starts
to blink and the software version and date are displayed.
Continue to press down these buttons).
3. After 10 seconds, the Lock icon is displayed indicating that
the Lock option is activated. Then, release the buttons.
Lock Deactivation
1. To deactivate the lock option, cut off the power supply of
the thermostat at the electrical panel and wait at least 30
seconds.
2. Restore the power supply to the thermostat. The Lock icon
will blink during a maximum of 5 minutes, indicating that you
can deactivate the Lock option.
3. Simultaneously press down the + and - buttons for more
than 10 seconds. The Lock icon will then be hidden indicating
that the lock option is deactivated.
Parameter Backup and Power Failures
The thermostat saves some parameters in its nonvolatile mem-
ory in order to recovered them when power is restored (e.g. af-
ter a power failure). These parameters are the current Man/Auto/
Pre-Prog mode, the hour and the day of the week, the Auto
mode programming (either from the Ambient or Floor mode), the
maximum floor temperature (28 or 35°C), the last selected pro
-
gramming of the Pre-Prog mode, the Ambient/Floor mode, the
Celsius/Fahrenheit mode, the last effective set point, the lock
mode and the maximum lock set point.
As mentioned above, the thermostat can detect a power failure.
In such a case, the adjustments described are automatically
