Hi - my 40Cdi has a wireless optimiser thermostat. I want to replace this with a fixed hard wired thermostat. I presume that this only needs 3 wires - one of those being an earth - so essentially 2 wires. Which terminals should these two wires go to inside the boiler?
Seems like I have a choice of Ns, Ls and LR
The wire you see is for my underfloor heating. That comes in from a separate wiring centre. I'm not sure it's actually wired correctly, as at the moment, I have to have the wireless thermostat on and the u/f on for both to work. They won't work independent of each other (as they should ideally). If anyone can tell me how that should be wired, that would be helpful.
Thank you Paul
Seems like I have a choice of Ns, Ls and LR
The wire you see is for my underfloor heating. That comes in from a separate wiring centre. I'm not sure it's actually wired correctly, as at the moment, I have to have the wireless thermostat on and the u/f on for both to work. They won't work independent of each other (as they should ideally). If anyone can tell me how that should be wired, that would be helpful.
Thank you Paul