Recent content by DSTaylor22

Thanks for the feedback. I was hoping this would be as straight forward as simply replacing the 907 with the relay switch without needing to go back and change wiring at the boiler or re-siting the relay (the way the system has been installed I can't easily track back the wiring from the...

I want to replace a cm907 thermostat with a 927 and bdr91 relay. Removed 907 stat from wall to then wire in the bdr 91. 907 has only two wires - brown (live) to A and grey (neutral) to B. There is also an earth and a fourth black wire which are not connected. Bdr91 seems to requires L and N feed...