Rewiring boiler controller

[thelaj]

My house has a single circuit combi boiler, with an Altech C014 Controller and wireless thermostat. I want to replace this with a Drayton Wiser controller. Both of these are double insulated.

Photos show the existing wiring, and my proposed new wiring for three new backplate. Is it correct, or should I be getting an electrician?

Thanks

 

[AndyPRK]

looks ok to me, but doing go doing it in the dark or just before xmas !!!

 

[CountryFan]

As above, looks ok, but the green/yellow shouldn’t really be used for a live wire. Perhaps brown sleeve it or use brown insulation tape.

 

[EFLImpudence]

Yes, your diagram is correct.

It has recently been made against the regulations to use the earth wire as a live conductor but it was not when installed.

It would be good to sleeve it brown but it doesn't really make much difference.

 

[thelaj]

Thanks so much. My spark wanted £120 to do this, which I don’t begrudge him, buts it’s a lot to change 4 wires.