The permanent Live has to be direct from the supply, which is isolated from a 2 pole fused switch. I think you mean the Ls get wired to the Wiring Box?
Hi guys,
Its my first post on here, but I'm going to dive in deep!
Our plumber is currently fitting the CH and HW system in the house we're renovating. I'm doing the wiring for it, and whilst I have just completed an electrical course, I'm unsure on this issue, as its my first Heating...