Nest Heating and Water Valve

[SandLake]

Still trying to understand Nest and wiring.

I now know I need 2 new 2 port valves and a new cylinder stat.

The Nest 3rd Gen wiring for an S-Plan system shows 3 wires to both of the 2 port valves labelled O, GR, and BW - Can someone give me an example of a suitable valve?

 

[picasso]

The initials stand for orange, grey and brown, the neutral and earth wires are normally omitted from drawings but its assumed the reader knows they have to be there.

https://www.tradingdepot.co.uk/hone...1261&utm_content=Bathrooms To Love Enclosures

 

[SandLake]

ass u me - well definitely me!!!

Thank you