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In the time programs for central heating and central
cooling you set the time phrases during which your
home is heated or cooled and to what temperature.
To do so, select an operating status for each time
phase: See chapter "Operating status for central heat-
ing/central cooling".
Factory setting: one time phase from 00:00 to 24:00 h
for every day of the week with the "Standard" operat-
ing status.
Note
The factory setting is suitable for operation with
underfloor heating systems.
No time program can be set for a separate cooling
circuit.
1. Extended menu:
2. "Heating" or "Heating/cooling"
3. If applicable, use / to select the required heating/
cooling circuit
4. "Time program heating" or "Time proghtg/cool-
ing"
5. Set the required time phases and operating status.
To see how to set a time program: See page 23.
Note
Between the time phases, rooms are neither heated
nor cooled. Only the heat pump frost protection is
active ("Standby" operating status).
When making settings, please bear in mind that your
heating system requires some time to heat or cool
the rooms to the required temperature.
Operating status for central heating/central cooling
"Standard"
Central heating/central cooling takes place to the
standard room temperature "Set room tempera-
ture": See page 26.
"Reduced"
Central heating/central cooling takes place to the
reduced room temperature "Set red. room temp":
See page 26.
Note
In the "Reduced" operating status, a heating/cooling
circuit is not cooled.
"Fixd value"
Central heating takes place with the max. permissi-
ble flow temperature of the respective heating circuit,
irrespective of the outside temperature.
Central cooling takes place with the min. flow tem-
perature of the respective heating circuit, irrespective
of the outside temperature.
Factory settings: Your contractor may have adjusted
these values.
Max. heating flow temperature: 40 °C
Min. cooling flow temperature: 20 °C
Central heating/central cooling with buffer cylinder
Note
Further information regarding the different buffer cylin-
ders can be found in chapter "Terminology" in the
Appendix: See page 92.
Switching on central heating/central cooling with buffer cylinder
System with heating water buffer cylinder
For central heating, the heating water buffer cylinder
supplies your heating/cooling circuits with heat. The
heat pump heats the heating water buffer cylinder
automatically, as soon as the outside temperature
falls below the heating limit. This heating limit has
been set by your contractor.
For central cooling (if installed), the heat pump sup-
plies the cooling circuit directly, not via the heating
water buffer cylinder. Central cooling is automatically
switched on if the outside temperature rises above the
cooling limit. The cooling limit has also been set by
your contractor.
Central heating/central cooling
Setting the time program for central heating/central cooling
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