13. Child-proof lock / operating lock ( )
Operation of the device can be locked to avoid unintended
changes through involuntary touch. To (de)activate the
operating lock proceed as follows:
• Briefly press the Mode and the OK button simultaneously.
• Once activated, the operating lock symbol ( ) is shown
on the display.
Battery life can be prolonged by switching the heating off
in summer. To achieve this, the valve is opened fully and the
calcification protection function continues to run.
To activate proceed as follows:
• In manual operation (Manu) press the (+) button until
"ON" is shown on the display.
To end proceed as follows:
• Exit manual operation (Manu) or press the (-) button until
the desired temperature is set.
15. Setting frost protection (OFF)
If the room does not need to be heated, the valve can be
closed. The valve is only opened if there is a risk of frost.
The calcification protection function continues to run. To
activate this, proceed as follows:
• In manual operation (Manu) press the (-) button until
"OFF" is shown on the display.
• To finish, exit manual operation (Manu) or press the (+)
button until the desired temperature is set.
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14. Setting heat pause (ON)