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  1. Update: 25 minutes after the home screen first...

    Update: 25 minutes after the home screen first claimed to be reheating the hot water the hot water relay has finally clicked on and the boiler relay demand on the system summary page has gone to 100%...
  2. Having some problems with hot water control now....

    Having some problems with hot water control now. :(

    I'm aware of the change to hot water priority and earlier in the day I tested a couple of hot water reheat cycles and they worked as expected -...
  3. That will be the load scaling feature - looks...

    That will be the load scaling feature - looks very similar to what I just reported in my frost protection post.

    If you have a boiler relay the minimum on-time sets the minimum amount of boiler...
  4. I've done a little bit of testing on this today...

    I've done a little bit of testing on this today and discovered a bug with frost protection. Well, you might call it an unintended interaction rather than a bug I suppose, but the end result is it...
  5. If I remember right window open mode being active...

    If I remember right window open mode being active is "reported" the same way in the API - eg the set point shows as 5C with follow schedule. Even the iPhone app doesn't know the difference between...
  6. Shouldn't cause an issue though because the set...

    Shouldn't cause an issue though because the set point will be updated when heating off is disabled.
  7. It looks like the heat demand of a zone is...

    It looks like the heat demand of a zone is clamped to 0% by the controller (independently of what the HR92 reports) if the set point is about 2C or more lower than the reported temperature - so a...
  8. Turning the heating off immediately forces all...

    Turning the heating off immediately forces all the heat demand figures in the system summary page to 0% and turns off the boiler relay immediately, rather than the usual several minute delay where...
  9. Correction, I now have the update. :) I've...

    Correction, I now have the update. :)

    I've made some interesting observations about the new firmware already. One of the suggestions we made a year or so ago seems to have been silently...
  10. Ah good. I'm not the only one who doesn't have...

    Ah good. I'm not the only one who doesn't have the update yet. :)
  11. Ok, but would the boiler have been stopped anyway...

    Ok, but would the boiler have been stopped anyway without the feature enabled due to heat demand of all zones being less than 10% ? Next time you see that condition, turn the feature off and see...
  12. Sounds like warm weather shutdown is only useful...

    Sounds like warm weather shutdown is only useful on an OpenTherm system then, as a TPI system will already not fire the boiler until the heat demand is at least 10%. (Dependent on minimum on time and...
  13. Are you sure that's new ? Is your system TPI or...

    Are you sure that's new ? Is your system TPI or OpenTherm ?

    Because on a TPI system with the default 6 cycles an hour and 1 minute on time the boiler won't fire until there is at least 10% heat...
  14. Keep in mind that there is typically a lag -...

    Keep in mind that there is typically a lag - sometimes of a few hours between actual temperature at your location and the temperature reported by most online weather services. I use weather.com data...
  15. What you're saying makes the assumption that all...

    What you're saying makes the assumption that all systems implement explicit flow temperature boost on hot water reheat. Mine doesn't. Many others don't.

    Yes, this is probably the default case with...
  16. Yes, 3C is far too much, so I never use it. 0.5 -...

    Yes, 3C is far too much, so I never use it. 0.5 - 3C in 0.5 steps would be pretty cool, both minus and plus, selectable at the time the quick action is activated.

    A housewide offset both negative...
  17. Well in my case I don't just want the CH valve to...

    Well in my case I don't just want the CH valve to close on hot water demand - because that would be hot water priority, which I don't want. I just want it to come back under TPI control from the...
  18. I used an MRT16-REM: ...

    I used an MRT16-REM:

    https://www.cpelectronics.co.uk/energy-saving-product/time-lag-switches/mrt16-rem

    It fits a regular protruding back box and has a blank front panel. A version with volt...
  19. Just checked and I only had 28 messages in my...

    Just checked and I only had 28 messages in my inbox. Not much room on this forum! :) I've deleted them all so try again.
  20. Did you wire in hot water priority as well ? Or...

    Did you wire in hot water priority as well ? Or are all you radiators HR92 controlled to prevent radiators heating during hot water reheat ?

    While that original idea of mine is better than just...
  21. I don't have any radiators without HR92's...

    I don't have any radiators without HR92's anymore, so not in my situation no.

    You're right though - if you did have a bypass radiator then at the end of a hot water reheat cycle in summer a small...
  22. Hi Andy, I registered for the firmware update...

    Hi Andy,

    I registered for the firmware update on Thursday night but haven't actually received the update yet. So I don't actually have any measured effects to report. (I'll PM my MAC address...
  23. This is exactly my thinking as well. If the pump...

    This is exactly my thinking as well. If the pump keeps stopping every few minutes hot water sits losing heat in pipework without reaching the radiators, especially with a low TPI duty cycle where the...
  24. Which was the point I made earlier - OT systems...

    Which was the point I made earlier - OT systems already have the pump running near continously on light loads.

    Although the pump running continuously across each TPI cycle (so long as there is...
  25. Not sure how this would be any different to...

    Not sure how this would be any different to opentherm which would tend to keep the pump running with very little boiler output ?

    I actually have a 12 minute overrun on my pump precisely so it...
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