eta 13180LP-T, Operation

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[Heating circuit] function block ETAtouch controller
At outdoor temperatures below freezing, the
rooms are always too hot or too cold:
1. Only parameter [Flow at -10 °C] is adjusted.
2. Change the selector switch to the heating mode
position ( ). Use the arrow keys to
reduce parameter [Flow at -10 °C] if it is too warm,
or increase if it is too cold.
Fig. 5-70: Adjust heating curve (at outdoor temperatures
below freezing)
Outside the heating times, the rooms are always
too hot or too cold:
1. Then only the reduction is adjusted with parameter
[Set-back difference].
2. Change the selector switch to the reduced
operation mode position ( ). Use the
arrow keys to reduce parameter [Set-back
difference] if it is too cold, or increase if it is too
warm.
Fig. 5-71: Adjust reduced operation mode
With underfloor heating, reduced operation mode is
only partially noticeable because this heating system
reacts very slowly due to the high thermal mass of the
screed. Changes in parameters [Set-back difference]
are therefore often not noticeable.
5.7.3.2 Setting the heating limits
Specifying the heating limits for the heating circuit
For each heating circuit, separate heating limits are
adjustable for heating mode (within the set heating
times) and reduced operation mode (outside the set
heating times).
If the current outside temperature exceeds the
configured heating temperature (for example 18 °C),
the heating circuit is switched off. The same applies to
reduced-temperature mode as soon as the outdoor
temperature exceeds the set heating limit.
If the outside temperature falls below the set
heating limit (for example: 18 °C), a hysteresis of
2 °C will be observed in order to avoid cycling the
heating circuit. Accordingly, the heating circuit will
switch on only once the outside temperature falls
below 16 °C (=18 °C - 2 °C).
The heating limits are adjusted through the settings of
the heating circuit (
button) in the heating curve
menu ( button).
Setting heating limits for heating mode
1. Change the selector switch to the heating mode
position ( ).
Use the arrow keys to reduce parameter [Heating
threshold], so that the heating circuit in heating
mode switches off at a lower outside temperature,
or increase the value.
Fig. 5-72: Heating threshold for heating mode