7.1 Operating modes
7.1.1 Weather-compensated control
Set the function block F1 to1 = ON, and set the parameter P1= Heating characteristic gra-
dient and P2 = Level. Sensors AS and VS for outdoor and flow temperatures are required.
When the weather-compensated control is active, the reference value for room temperature
appears in the display. The heating control works towards the temperature shown in the dis-
play in the room/house/appartment.
The reference value for room temperature allows you to influence the set point of the flow
temperature that is calculated in the controller.
The set point of the flow temperature is calculated as a function of the heating characteristic
gradient, the outdoor temperature and the reference value for room temperature.
Note:
The current reference value for room temperature can be briefly changed in the display level,
it remains activated until the next time-of-use or time of non-use comes into effect.
See chapter 5.1 on setting.
7.1.1.1 Heating characteristic
The flow temperature is a function of the outdoor temperature. This correlation is described
with the aid of the heating characteristic (Fig. 4).
Using the parameters "Gradient" and "Level" the heating capacity can be adapted to the
building characteristic or to the type of heating (e.g. underfloor heating).
Gradient:
Depending on the set gradient of the heating characteristic, a varying high flow temperature
is controlled for a outdoor temperature.
The gradient of the heating characteristic can be adjusted over the parameter P1 in the
range of (0.2...3.2). The parameter P1 can be accessed on the installation level and has the
default setting of 1.6. The left graph in Fig. 4 shows a selected group of heating charac-
teristics with gradients in the range of P1 = (0.4...3.2).
EB 5432-1 EN
23
Description of the controller functions
Summary of Contents for TROVIS 5432
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