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Move the black wire that is currently in 2 to 1

L1 is the switched live there should be no connection to N1 in your situation. So Red to 4 Blue to 3 Yellow to 1 Nothing to 2

Common and 1 BREAK on rise. Common and 2 MAKE on rise. So to do what you want connect to common and 2. But I don't think that is a good way of doing it. What controls have you got to stop it getting too hot? The valve should be controlled by a cylinder thermostat that will close it when it...

There's an echo in here(y)

Yes it will go straight onto that backplate. Depending on what system you have you might not need a connection to HW off and you will almost certainly not need a connection to CH off. If you have 2 valves (S plan) then it is fine as it is. If you only have 1 valve (Y plan) then you probably...

@ericmark The grey is common, orange is NO. And why are you obsessively going on about opentherm? The OP never mentioned that. To the OP your diagram is mostly right. Don't alter the wiring going to the orange valve wires. Disconnect the 2 black wires going to the brown wires of the valves...

They are motorised valves not pumps. It's up to you how you do it, as you say it would be easy to put the receivers where the existing thermostats are now and wire them as you said. Or you could put them where the valves are and wire them into the wiring box there. If you want to do that I can...

Yes leave the link form L to HW. No if using a single channel there is no connection to hot water. Boiler - Hive N - N L - L Link L - 1 on the receiver CH to 3

Yes if your fitting the dual channel Hive. Or only the one between L and CH if your fitting the single channel one.

N-N L-L 1-1 3-3 4-4 The brown wire that is in 5 to L Then as you say the two wires in C in a connector and the two wires in D on another connector.

No probs (y)

Yes I meant 24v (as I said in my first post) not 12v.

Yes if 230 volt switching is used then the 12 volt link needs removing.

Yes remove that link. The boiler will just run constantly with it in place.

ALL THREE!!!

When in holiday mode the CM907 sets the temperature to 10° by default so no there won't be any freezing!

Already given by me. All 3.

Yes all 3

Has the RT 24v link been removed on the circuit board in the boiler?

No it won't.