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5.8 Settings
The following functions are available:
1.Keylock
The keylock is activated 2 minutes after actuating any of the touch keys. The
key icon appears on the display to indicate this locked state. The touch keys
can be reactivated by actuating and holding any of the keys depressed for
10 seconds.
2. Automatic change between daylight saving and standard time
The harmonised daylight saving time in the European Union takes effect as
of the last Sunday in March, i.e. as of 2.00 o'clock a.m. CET and lasts until
to 3.00 o'clock a.m. on the last Sunday in October (CEST) each year (direc-
tive 2000/84/EG of the European Council and Parliament). The temperature
controller changes the time all automatically at these dates. The automatic
change between daylight saving and standard time can also be deactivated
to enable the changing of the time at other dates or to meet the time condi-
tions in other regions.
3. Valve and pump protection function
The valve and pump protection function serves to prevent the valve seat
and/or the pump(s) from corroding up during longer stop times. If using the
device for the control of warm-water heating systems, activating the valve
protection function is recommended. After activation of the valve and pump
protection function, the controller actuates the valve(s) or triggers a heating
pump every Monday at 11.00 o'clock a.m. over a 5 minute time period. The
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