Drayton Wiser To Glowworm Flexicom 30cx wiring check

[Bobajob11]

Hi All,

Was hoping that someone would be able to confirm if these two wiring posistions are correct, I have a Glowworm Flexicom 30cx combi boiler and will be installing a Drayton Wiser kit 1 to help with heating bills from what i can make out there is two ways to wire this in.
Would a L N from the boiler wiring cartridge to the Drayton hubr and then 1 hubr to Switch Live on the boiler and 3 hubr to frost stat on the boiler, would that work?

Other way is L N from boiler to hubr and hubr 1 to 24v and hubr 3 to 0v volt free contacts, would both these work or only one? For some reason i cannot get the Boiler pdf image of wiring to display in the thread but if you click on it you will see the diagram

Many Thanks for any guidance given

 

[CBW]

Personally I would use the open therm connections on your boiler and the hub r. Be careful opening your boiler though, as some need to be checked for safety afterward.

 

[Bobajob11]

Ah so OTC 1 to Hubr 1 and OTC 2 to Hubr 3 as well as the L & N would work ok? didnt really think about that although i swear i have read that the Glow worm needs another part to use opentherm, But could of got mixed up, thankfully i wont have to open the boiler as the electrical cartridge is accessible underneath.

 

[CBW]

Sorry, my mistake, thought it was opentherm, but that’s the weather comp connector.

 

[Bobajob11]

No problem, out of the two options what would you say is the best? or would both not work.

Just want to get it right without any problems.

Bob

 

[CBW]

Probably best going for the 24v option.