Replacing Drayton LP822 with Hive

[ianmcd]

That’s just means it’s a Y-plan setup and it’s fine.

But he also has an additional 2 port zone valve fitted for the downstairs mate so wont work as a MPV never closes so the 2 port will fire the boiler when requested and whatever the MPV position will also heat that circuit

 

[CBW]

But he also has an additional 2 port zone valve fitted for the downstairs mate so wont work as a MPV never closes so the 2 port will fire the boiler when requested and whatever the MPV position will also heat that circuit

Yes just seen that mate, playing catch-up as these alerts are from when I had logged in earlier, but the thread has been updated

 

[Ricardov12]

That is your problem you can not have that setup, you will need to remove the mid position valve and replace it with 2 x 2 port zone valves so you will have 3 x 2 port valves in total called an S plan + system and wired accordingly

Well that's not good news.
Can I disconnect the 2 port valve for now and close those isolator valves?
Will that get the rest of the system working correctly and just abandon the garage conversion for now?

 

[ianmcd]

Yes just seen that mate, playing catch-up as these alerts are from when I had logged in earlier, but the thread has been updated

like drawing teeth getting the correct info on this one mate

 

[CBW]

like drawing teeth getting the correct info on this one mate

Aye, very true mate

 

[Ricardov12]

Thanks for bearing with me and my naivety!
What do you reckon about me closing the 2 water valves above the boiler that must be the feed and return for the 1 radiator in the garage conversion? And then just disconnecting that 2 port valve?

Will there be any other unintended consequences?

 

[gazfen]

Disconnect the 2 port. Leave it in the open position. See if that works. Never seen out like it.

 

[Ricardov12]

Apologies for not coming back sooner to say thank you.

I disconnected the 2 port valve that was added for the garage radiator and the rest of the system is working very well now.