Problem with setting target temperature / Eco Mode / calibration

[snooopy365]

Hello everyone,
I'm trying to find a good solution for my heating system. right now I'm using TV02 Zigbee radiator valve with an external Zigbee Temperatur sensor.
Now I'm getting a few problems.

First: Is it correct that it is impossible to use the program shedule that is saved on the radiator valve?
It always keeps setting it to "manual" even if only using the offset calibration?

Second: I'm using an external automation for the window open detection, because I want it to turn the target temperatur to 15°C as soon as I open the window and reset it to the previous value 25min after the window is closed.

This does result in a strange behavior: as soon as the automation does send the "set target temperature" to 15°C, the ECO symbol in the ui is turned on. (why? the eco temp in ui is set to 11°C.. why does it turn on?)
But the really strange thing is: If I close the window (and the automation sends the "restore temperatur" command, sometimes it turns off ECO mode and reset the temperature like it is supposed to. Most of the times I just does nothing?

If I turn off the ECO mode by pressing the UI button: it does reset to saved temperature.

Third: I changed from offset based to target based, because if I use offset based, it will reset the temperatur but not reset the internal offset.
So for example: Temp is set to 21°C, I open the window... it gets set to 15°C ... while the window is open the Offset will change doing the calibration, when I close the window again, it does restet the Temp to 20,6°C. My guess is: the Offset before the window was opened and after it was closed did change 0,4°C.

Can anybody help me solve this problems?

Thanks for your help.

[benelauer89]

I can relate to your second issue. It seems that (recently) the "set_temp_target_temperature" service does not just set a temperature for the regular heating mode, but instead sets one for eco mode and also switches the BT entity to the aforementioned.

As far as I understand, this is rather cosmetic and doesn't affect the heating behavior of the thermostat itself - it will in any case heat up or "cool down" to the set temperature. However, it messes with the proper usage of the heat/eco mode.

[sorryusernameisalreadytaken]

I dont understqnd the eco mode? Why did I need an eco mode?

[benelauer89]

The feature itself makes sense to me, aesthetically anyways. It's so you have two set temperatures that you can toggle, for example for night/day or when you are away. Of course, you could also just set the temperature value up or down in these scenarios. It just copies the logic of many smart thermostat applications where "night modes" and "eco modes" are very common to see what's going on.

Addressing this mechanism with services is quite basic in current BT. The set_temp service will activate the eco mode and set it's temperature to a certain value at the same time. The reset service will just switch back to regular heating mode and to the temperature that was set beforehand.