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Vaillant 831 Ecotecplus Combi
Posted: Thu Jan 31, 2019 7:41 pm
by garymtitley
Hi does anyone one know if the vaillant vr33 open therm module work with this boiler,this is a 2010 model.Iknow that this is not supported by Vaillant in the uk but other people have got this to work with other Vaillant boilers,just wondered if it would work with the 831.Any guidance would be welcome.Thanks.
Re: Vaillant 831 Ecotecplus Combi
Posted: Mon Feb 04, 2019 5:28 pm
by Richard
VR33 should work with any Vaillant boiler... Just a shame Vaillant UK doesn't support it.
Re: Vaillant 831 Ecotecplus Combi
Posted: Tue Feb 05, 2019 8:31 pm
by garymtitley
Thanks Richard,will be ordering a Honeywell open therm bridge from you in the very near future.
Re: Vaillant 831 Ecotecplus Combi
Posted: Sun Feb 17, 2019 12:29 pm
by garymtitley
Got a Vaillant vr33 from Holland and got the Honeywell evohome open therm bridge from the evohome shop which was delivered next day.Got all this installed and I'm happy to say it's all working very well,may need a few final tweeks,but very happy otherwise.
Re: Vaillant 831 Ecotecplus Combi
Posted: Mon Feb 18, 2019 8:56 am
by Richard
Brilliant... Thanks for the feedback!
Re: Vaillant 831 Ecotecplus Combi
Posted: Sat Mar 02, 2019 1:13 pm
by garymtitley
No problem Richard,when my boiler is ready for replacing,nearly ten years old now but still working perfectly good,I will coming back to you and will be going for the intergas eco rf24 I think.
Re: Vaillant 831 Ecotecplus Combi
Posted: Sun Dec 17, 2023 12:12 pm
by robeg.brown@gmail.com
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 circuit board as i was replacing the 230V relay BDR91 Relay Box.
all works fine