button to go to the main screen. Then press the “DAY” and “PROG”
buttons one after the other. Following this, activate or deactivate
this function using the large and buttons. The notices
„ ” and „ ” indicate activated and deactivated state,
respectively. Finally, conrm the setting by pressing the “SET”
button (if no buttons are pressed for at least 15 seconds, the setting
is automatically conrmed). After this conrmation, the device goes
back to the main screen.
To prevent the pump from sticking, the activated pump protection
function switches on the boiler for a one minute period at 12:00 p.m.
every day outside the heating season. (The pump protection function
can accomplish its task only if the boiler is in working order in the
summer, too. It is reasonable to set a low temperature level, e.g.
+10°C, on the thermostat for this period, to prevent the boiler from
unnecessary start-ups when the weather turns cold temporarily).
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