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- Sun Dec 17, 2023 12:12 pm
- Forum: OpenTherm Setup & Help
- Topic: Vaillant 831 Ecotecplus Combi
- Replies: 6
- Views: 751
Re: Vaillant 831 Ecotecplus Combi
just install VR33 (bought from Holland €75 plus delivery, downloded the dutch manual and tranlated it to English) on a Vaillant 843 combi, follwed the dutch youtube on setting up the R8810 opentherm bridge and estamblish comms (red lights). then had to re link the 24V relay return on the boiler c ...