Heating

If the heating needs to be incorporated into the KNX system, then the control valves of the heating circuits are connected to the heating actuator. The KNX actuator controls the valves for each heating circuit individually. The relevant indoor temperature is crucial for when the valve opens and closes again.

For this purpose, the room temperature is recorded by temperature sensors in the rooms. However, if it is still too cold then the control can be adjusted, for example via a room temperature controller with adjusting knob that is installed on the wall. This means that you always have the optimum comfort temperature in your rooms.

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Heating and cooling 

Heating in winter – cooling in summer

If cooling is integrated into the heating system, this can easily be incorporated into the home automation via the MDT Heating Actuator. a comprehensive PI temperature controller is integrated into the MDT Heating Actuator. This ensures that only the target and actual temperature of the room are needed to control the room temperature, and the rest is done by the KNX Heating Actuator. For example, the temperature values are provided by a Push Button with temperature sensor. The combination of MDT Heating Actuator and MDT Glass Push Button II Smart with temperature sensor therefore allows for low-cost individual room control without additional components.

Hightlight function

Target value according to outdoor temperature

Automatic adjustment

In summer, there should not be much difference between the indoor and outdoor temperature. In cooling mode it is therefore possible to adjust the target value based on the outdoor temperature when using the MDT Heating Actuator. This means that the target value is increased in a linear manner in order to limit the differences between the outdoor and indoor temperatures.

Hightlight function

Custom modulation

Efficient control – warmth when needed

In order to make optimum use of energy, the heating is set so that it only supplies heat when it is actually needed. This includes saving a comfort temperature for the day and a night-time reduction so that there is less heating at night. MDT allows for even more energy saving thanks to the custom modulation of the heating via a communication device. If only 10% warmth is required, then the heating is reduced to 10%. Obviously it is also possible to make individual settings. For example, lots of people want the bathroom to be warmer than the rest of their home. In order to achieve this, it is possible to set a higher comfort temperature for the underfloor heating. For this purpose the floor temperature is measured with an additional floor sensor and held at, for example, 18 degrees. This means that the floor always feels pleasantly warm underfoot.

In order to implement the automatic heating control, you will need an MDT Heating Actuator with integrated PI temperature controller and a room thermostat. Alternatively, a push button with temperature sensor and a central operation unit can be used for target value adjustment, or simply use the Glass Push Button II Smart with temperature sensor.

The occupants can also use the push button to change the settings manually if needed, which is a common request for the room temperature in particular. Anyone who wants to be really energy-efficient can also add a binary input for the window contacts in order to block the heating if the windows are open.