Worcester greenstar 8000
Answers
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A lot to consider.
1. What exact model is this? It is important.
2. Could you take a photo of the connecting bar, on the right hand bank, where the EMS BUS connection is made?
3. What configuration did you use when setting up the Tado wired thermostat? Was it for relay mode, or to interface with the EMS BUS?
4. What model of wireless controller do you currently have in place?
Many have made this work in relay mode. There is one thread which suggest Tado's can handle the old EMS2 mode that WB offers on that boiler, but having scanned the logs that user hasnt been on the forum for many months. A lot more members have asked for clarity on enabling Tado to interface with the EMS 2 version that comes with the 8000 series.
It should be possible to make this work in the default Relay mode. Please get that info, come back and we can work through the logic.
@Rob You once investigated this boiler's interface. Suggestions?1 -
I have a new WB 8000+ boiler, and the only way I've managed to get Tado to work with it is in Relay (R01) mode.
I had my old boilder also a WB, Greenstar 42DCI wired from my wired Tado thermostat to the Boiler via EMS. HT-EMS I think it's called in Tado, and this did work.
I tried this with the new boiler, and also EMS+ in Tado, bit it did not work, so now I've had to fall back to Relay Mode.
Unfortunately this doesn't give proper Modulation of the boiler, max flow temps, etc.
So after many years with Tado, I'm now considering removing it all and going with WB EasyControl.
See post hereWorcester Bosch EMS2 — tado° Community
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@Emcee Would you come back and let us know what the status is on EMS2 interfaces. Having read the community logs, it seems that this need was logged in 2019/20, with repeated requests in 2021, 2022 and in early 2024. Do we have a timetable for this to be addressed on the V series or X series?
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