First of all, I am sorry as this is a very basic question, I did not succeed into finding another post in the forum answering the question I have.
Today I started the installation of my HestiaPi Touch, so far I have removed my old thermostat, successfully configured WPA, and fixed the stunning hexagonal cage to the wall, however, this installation that I believed to be plug & play definitely requires some help!
The thermostat I am replacing is battery powered, it is essentially a contact relay scheduled by a thermistor and a set of profiles that can be configured. The system when on takes care of both the heating and the water, which is always on, recirculating.
Accordingly, at the electrical level we can think of my previous thermostat as a simple relay that opens / closes the circuit that triggers the system as a whole. If I remove this thermostat and connect these two wires, the heating system turns on just fine.
That is what I want to achieve with my HestiaPi, something I believe must be possible. However, it seems like HestiaPi is designed for systems which have 4 wire thermostats… in my case I just have the 2 wires mentioned, between the heating system and the thermostat…
In order to power up my HestiaPi I have wired L and N from the house, not from the system, is this wrong? If this is wrong I am screwed because it seems my setup is different, and it is really afar…
So, my HestiaPi boots and connects to WiFi, I can SSH and tinker. Although, the screen is still white (I have asked about this in another post).
So, where I expected simple terminals for connecting the 2 wires I have for enabling/disabling my heating system as a whole, I am seeing a Water (W) wire and a Heating (H) wire which to me both seem completely different to what I had with my old thermostat.
To my limited understanding, both W and H are different relays, so I do not know how to proceed, shall I install 1 wire to H and the other 1 to W? seems nonsensical I know, as I said both are different relays…
So please, help me see the light! I want HestiaPi to behave like my old thermostat, to be like one simple relay, but with all the cool & hacky stuff HestiaPi offers!
Thank you very much for your help and your time.