Procedures to activate Security mode
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 icon starts to blink
and the software version and date are displayed. Continue to
press down these buttons).
3. After 10 seconds, the icon is displayed indicating that the
Security mode is activated. Then, release the buttons.
Procedures to deactivate Security mode
1. To deactivate the Security mode, 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 icon will
blink during a maximum of 5 minutes, indicating that you can
deactivate the Security mode.
3. Simultaneously press down the + and - buttons for more than
10 seconds. The icon will then be hidden indicating that the
Security mode is deactivated.
Parameter Backup and Power Failures
The thermostat saves some parameters in its nonvolatile memory
in order to recovered them when power is restored (e.g. after 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
or
mode), the maximum
floor temperature (28°C – 82°F), the last selected programming
of the Pre-Prog mode, the
/
mode, the Celsius/Fahrenheit
mode, the last effective set point, the Security 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 saved
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