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2.6 Flow set temperature:
The flow set temperature results from the measured
outdoor temperature and the chosen heating curve. The
correction value of the remote control as well as the day
correction or night correction are added to these values.
The flow set temperature = heating curve tempe
remote c (day correction or night correction). If
the calculated flow set temperature is higher than the adju-
sted maximum flow tempe rature, the flow set temperature
is equated with the maximum flow tempe rature.
2.7 Mixer control:
The mixer control is used for matching the flow tempera-
ture with the flow set temperature. For this purpose the
mixer is started up/shut down according to the deviation.
The mixer is activated for the runtime of four seconds
(factory setting). The break time is calculated from the
set and actual value.
2.8 Priority of domestic hot water
This function switches off the heating circuit during domes-
tic hot water after-heating. For this purpose the option
domestic hot water priority has to be activated and the
after-heating has to be effected by the boiler charge con-
trol.
2.9 Blocking protection for heating circuit pumps:
The heating circuit pump is switched on every day at
12 o’clock for 30 seconds to prevent the pump from getting
stuck. This function does not work if the flow set value is
reached, the flow sensor is damaged or the function do-
mestic water priority is activated.
2.10 Anti-freeze function
If the temperature at the flow sensor falls below 8 °C,
the heating circuit is switched on. If the flow temperature
reaches 10 °C, the heating circuit is switched off again.
2.11 Store after-heating (Differential controller):
In order to start up the after-heating (abbr.: AH) of the
heating circuit, the difference between the calculated flow
set temperature and one (AH=thermal) or two store sen-
sors (AH=boiler) is measured. If the difference between
both temperatures is too low, the after-heating is activated.
The after heating is switched off if the difference between
store and flow set temperature is high enough.
