Search results

Hi, I am trying to replace my Drayton RTS1 thermostat with a Honeywell CM907, my boiler is a Baxi Combi 133HE Plus. The Drayton RTS1 had three wires connected, Neutrel, Live & 3 (Call), the backbox also had a earth cable connected. The Honeywell CM907 only has two connections to use, A...