My current CH system has a standard programmable Timer and an old Honeywell Room sat. This has two wires to it and controls the pump. I wish to install a drayton +3rf wireless programmable stat which has 5 terminals - N and L ( 230V) and 1,2 and 3 which are volt free contacts. Can I use this new unit without major rewiring, if so how do I connect?
Thanks to whoever can help.
Thanks to whoever can help.