Thank you both for your kind and prompt replies and advice. All wired in and working well.
I'm really glad I got the wiring centre now as it made the wiring so much easier and neater!
Update! I have looked more closely at the original 2 port valve and although only 3 wires were originally connected there are 5, the orange & grey weren't connected to anything.
The wiring for the RT500RF shows COM linked to L but I think I need to wire COM to CH ON on the EP200 and NO to CH 2...
Hello, I need some help please with wiring my CH and DHW.
What I hope to achieve is a system whereby I can program both my CH and DHW independently, both times and temperature. Previously I had just the option of CH + DHW or DHW only. I only had 1 x 2 port valve but am going to fix a second to...