I have an old Satchwell/Sunvic TLX2203 thermostat.
It has 3 wires connected to it which look to be:
- switched live (green)
- live (red)
- neutral (black)
(at least I think that's the case)
I would like to connect this to a more modern line voltage thermostat like the Sinope TH1123ZB. The recommended wiring looks like this:
My understanding is a line voltage thermostat should sit in series with the live line (basically sit in the middle of the live line between the heating unit).
How can I wire this up given the existing wires I have?
Edit: I may not have the correct terminology as I'm new to this. Perhaps line voltage is not what I need here? Either way, I'm looking to understand what my options are to replace the current thermostat with something more modern (ideally zigbee compatible) -- what I have is the wiring pictured above and it is a 240v line.