ᐅ Central room temperature controller for the fan coil unit (FCU) of the underfloor heating system
Created on: 23 Jun 2020 11:34
M
micric3
Hello,
Is there a way to control the ERR centrally on one device, so that, for example, the children cannot adjust the underfloor heating control (heating circuit)? Also, I don’t mind not having a thermostat with a controller in every room. What would be the alternative? Are there sensor-only devices that, for example, send the temperature wirelessly to the central unit, or does a separate fixed setting for the respective heating circuit also count as an ERR?
Good luck
M
Is there a way to control the ERR centrally on one device, so that, for example, the children cannot adjust the underfloor heating control (heating circuit)? Also, I don’t mind not having a thermostat with a controller in every room. What would be the alternative? Are there sensor-only devices that, for example, send the temperature wirelessly to the central unit, or does a separate fixed setting for the respective heating circuit also count as an ERR?
Good luck
M
T
T_im_Norden17 Aug 2020 21:07Tarnari schrieb:
It’s supposed to be very complicated.
I’ve read several times that you can be exempted, but never that anyone has actually done or succeeded.
That’s why we will do it as described here: ERR using KNX temperature sensors (basically the existing switches) via the heating actuator. Fully open and control the heating operation solely through the flow temperature. Thinking too complicated, just disconnect the ERR.
T
T_im_Norden17 Aug 2020 21:11You can try to apply for an error exemption, but the heating engineer has to cooperate, and it must be precisely tailored to your individual situation to demonstrate why it is not economically reasonable. General statements are not accepted.
It was too complicated for me.
It was too complicated for me.
T_im_Norden schrieb:
Overthinking it, just clamp the ERR off. Am I missing something? This way, we don’t have any ERR at all. Thermostats aren’t installed like this. Yet, this still complies with the East Berlin regulation requiring room-by-room control.
T
T_im_Norden17 Aug 2020 22:02Your actuator usually controls the valves in the manifold. If you disconnect or unscrew the motor there and perform the hydraulic balancing, you don’t actually need the actuator.
untergasse4317 Aug 2020 22:05T_im_Norden schrieb:
Your actuator normally controls the valves in the manifold. If you remove the motor there and perform the hydraulic balancing, you don’t actually need the actuator.Exactly. The actual ERR (= the device where you set the temperature) can easily be created in a visualization tool of your choice. Whether it runs briefly in a browser or on a mobile phone doesn’t matter – it controls the rooms individually. The motors cost very little and can be resold later with minimal loss. What you decide to do with all that equipment over time is up to you.T
T_im_Norden17 Aug 2020 22:22During the hydraulic balancing and disconnection, nothing is visualized and individual rooms are not controlled. The only regulation is the heating curve.