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There is a choice of five heating systems:
• None
– This is selected whenever a heating circuit is not needed. All
submenus for this heating circuit are then disabled.
• Radiators
– If this heating system is selected, the corresponding parame-
ters are loaded and a characteristic heating curve allocated.
• Underfloor heating
– If this heating system is selected, the corresponding parame-
ters are calculated for a flatter characteristic heating curve and
a lower laying temperature. With this heating system, you also
have the option of activating a screed drying program.
• Constant
– This system operates independently from the outside tempe-
rature and maintains a constant water temperature as it leaves
the boiler. This system is suitable, for example, for controlling
the heating of a swimming pool. An indoor thermostat unit
cannot be integrated with this heating system.
• Uncontrolled
– In an uncontrolled heating system, only the enable tempera-
ture and the time program are taken into account. This heating
system operates without a heating circuit mixer. If combined
with an indoor thermostat unit, the pump switches off after the
desired room temperature is reached.
S
CREED DRYING PROGRAM If the heating system includes a newly installed floor heating system,
you can configure a drying period. Underfloor heating must
be set as the heating system.
After starting, the supply water temperature is adjusted to the Mi-
nimum screed drying temp.
The supply water temperature is increased in defined daily cycles by
the amount of the Screed drying temp. increase until the
Maximum screed drying temp. is reached. At this tempera-
ture, the supply water temperature is held for the amount of the
Screed drying hold time. Subsequently, following the prin-
ciple described above, the water supply temperature is reduced until
the Minimum screed drying temp. is reached.
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