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Type: Posts; User: bruce_miranda

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  1. Replies
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    Understood, I am really hoping that the manifold...

    Understood, I am really hoping that the manifold TRV now serves as a fail safe, rather than my only defence against 65C water being pumped round my ufh, in case something happens to the TRV. I say...
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    I finally managed to find a brand new HM80 and...

    I finally managed to find a brand new HM80 and the associated 20K NTC flow sensor for sale.
    I have no idea what the new solution for a mixer valve control is meant to be if HM80 is now considered...
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    The bug that keeps the batteries within the...

    The bug that keeps the batteries within the control panel topped up has not been implemented. So by the time you need the backup of the batteries, the batteries have self depleted. This is quite a...
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    Wow, Electric zone was introduced almost 4 years...

    Wow, Electric zone was introduced almost 4 years ago now.
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    My DT92E relay set came with the DTS92E...

    My DT92E relay set came with the DTS92E Thermostat inside it.
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    372

    We need someone who has bought an extremely...

    We need someone who has bought an extremely recent set to chime in. I understand that evohome controllers are now being sold with the latest firmware on them, those will be the sets to check.
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    If you know someone (think eBay) who needs a...

    If you know someone (think eBay) who needs a BDR91, then buying the set often works out cheaper.
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    On my HR80, when I first put the batteries in,...

    On my HR80, when I first put the batteries in, the display shows me the firmware version. Does the HR92 not do that?
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    If the Viessmann Vitodens 111-W boiler's HW can...

    If the Viessmann Vitodens 111-W boiler's HW can be controlled using an external programmer, then it can be controlled using a relay. So does it? If all you want is app control of that HW switch then...
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    Why not two Evohome controllers, for each end of...

    Why not two Evohome controllers, for each end of the house? Then you can decide if you want to add radiators controls or not at a later point. For now each can be controlling its own HW. A single app...
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    I too see this on the eBUS side on my Vaillant...

    I too see this on the eBUS side on my Vaillant boiler and it often doesn't make any sense to me at all. I too have toyed with the idea of manually altering the Target Flow temperature requested on...
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    Does the HR92 display it's firmware version...

    Does the HR92 display it's firmware version anywhere, either on a sticker or on start-up. IMHO Resideo actually do not handle part numbers very well, the latest BDR91 is quite different from the old...
  13. Actually the controller no longer requests any OT...

    Actually the controller no longer requests any OT data from the OT Bridge any more. Even Relative Modulation is lost but I spotted it on another message that was being received more frequently so...
  14. Yup it is very bizarre and Resideo insist that no...

    Yup it is very bizarre and Resideo insist that no change has been made to OT as part of this firmware update, but as you have seen clearly they have.
  15. Infact its quite the opposite. 65C comes in and...

    Infact its quite the opposite. 65C comes in and the manifold is actually hardly taking any of that in, so most of that is going back to the boiler. What is your room stat in the UFH zone set to? It...
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    All older kit only sent a low battery warning...

    All older kit only sent a low battery warning e.g. HR80, DT92 etc. The newer kit HR92, T87 sends battery level. A few of us have a special box of low batteries just to test this :-)
  17. Having the CH valve come on when the UFH is...

    Having the CH valve come on when the UFH is calling for heat is correct because the UFH is set up as a CH zone, so any demand in any CH zone will cause the CH valve to open. But none of that heat...
  18. And also would you please report what actual...

    And also would you please report what actual firmware version, you are on now after the reboot.
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    How did you go from the V5442 to 22mm pipe? The...

    How did you go from the V5442 to 22mm pipe? The reason I looked at the valve I linked to earlier was because like the V5442 it is DN20 internally threaded. Whereas the VBG2 that you had linked to,...
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    How about something like this...

    How about something like this
    https://www.jtmplumbing.co.uk/central-heating-controls-valves-c436/belimo-valves-c408/belimo-2-port-valve-with-230v-actuator-powered-open-powered-close-p16224

    Also...
  21. @kevinsmart any examples showing Evohome OT...

    @kevinsmart any examples showing Evohome OT providing the difference between a CH and DHW modes? Mind you, I am looking at the eBUS side of my boiler because that is all my boiler can natively...
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    What might happen if I just used the ON output of...

    What might happen if I just used the ON output of the HM80 on a normal 2 port zone valve and have the flow sensor attached to the output pipe of the 2 port zone valve?
  23. This is one of the short comings of Evohome and...

    This is one of the short comings of Evohome and even with OT, it does not differentiate between CH and HW heats. Some boiler manufacturers have the ability to deal with this with their proprietary...
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    Kevin, I looked at your previous configuration...

    Kevin, I looked at your previous configuration picture again. In your case too, if you shut off the flow from the boiler completely, wouldn't your UFH pump just circulate the water round the manifold...
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    Yes and No. I actually want the UFH pump to stop...

    Yes and No. I actually want the UFH pump to stop doing TPI because I do not believe it should. I am also thinking that if I can control the temperature of the water coming into the manifold TRV, then...
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