Protherm PTCP - Lock Activation; Lock Deactivation; Parameter Backup and Power Failures

INSSTCP0408
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 sec-
onds(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 sec-
onds.
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 memo-
ry 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 Ambient or Floor mode),
themaximumoortemperature(28or35°C),thelastselected
programming 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 saved