over_switch or over_climate ?

[schzffr]

Hi everyone,

I need your help regarding the type of thermostat to use. I've configured the existing one using the "over_climate" type, but I'm not sure if it's the right one.

My setup is as follows: Meross MTS200 wall thermostats controlling Danfoss on/off valves, with no intermediate state. I don't use the internal temperature of the thermostats because it's too inaccurate, so the temperature is from an external sensor that is sent to the thermostat via Home Assistant (HA) using the calibration function. Therefore, there's no temperature correction to be made on that side.

Since my thermostat only opens or closes a valve, should I use an "over_switch" instead of an "over_climate"? I have a water-based underfloor heating system. The Meross HA integration exposes entities of type "climate".

I'm scratching my head over this question and I want to use the optimal method because to control other valves, I simply use Shelly devices paired with the valves and configured as "over_switch".

Thank you in advance for your insights and have a good evening!

[jmcollin78]

hello @schzffr ,

The only question is what you have on HA side to control your valve ? If you have number entity which control directly the valve opening there you can try the over_climate with direct valve control as self-regulation method. I don't exactly how Danfoss valve are visible on HA side. This is the best solution, if it is available.

If you can't control the Danfoss valve, you will just have the over_climate choice with classical self-regulation.

I don't understand in your previous post, how you can have a control of the valve with a switch ? Maybe I miss something.

[schzffr]

Hi Jean-Marc,

Thanks for your quick reply! I can't control the valve directly from HA, the only way is through the climate entity. The Danfoss is not visible on HA, the valve is controlled by the thermostat itself.

Sorry for the lack of precision, it's not related to the same thermostat. I have other valves that I simply connected to a Shelly 1PM mini and they open and close when powered by the Shelly.

Thanks/Merci