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  1. It is a supported configuration for large rooms. ...

    It is a supported configuration for large rooms.

    I edited my post above with instructions on how to do it.
  2. I encountered this situation. All you need to do...

    I encountered this situation. All you need to do is to use two zones on the HCC80, one with 3 actuators, the next with 2 and bind them to the same room zone/thermostat in Evohome. They will...
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    I found BDR91 relays to be noisy, and with TPI...

    I found BDR91 relays to be noisy, and with TPI annoying if installed in a living area.

    The HCE80 has more intelligence around pump control, with overrun, and quiet actuator control (solid...
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    11,044

    You should see better zone temperature control...

    You should see better zone temperature control with the HM80, if that was previously a problem for you?
  5. 1837183818391840 Individual zone demands are...

    1837183818391840

    Individual zone demands are between 0 to 100% with the maximum demand sent to the OpenTherm bridge.
  6. I’ve got HCE80s with external antennas and see...

    I’ve got HCE80s with external antennas and see individual zone demands on the controllers
  7. It might not solve it but it will at least allow...

    It might not solve it but it will at least allow us to debug more easily, by seeing the zone demand percentages
  8. Contact customer support:...

    Contact customer support: consumersupportuk@resideo.com
    Provide this info:

    MAC ID and CRC code of the Evohome.

    The MAC address and CRC code of the evohome controller can be found in the...
  9. What firmware version are you running? Press...

    What firmware version are you running? Press SETTINGS. Keep the DEVICE SETTINGS button pressed until SYSTEM INFORMATION is displayed. Latest is 02.00.19.33
  10. Looks like you don’t have a boiler relay...

    Looks like you don’t have a boiler relay configured?

    You should see an Appliance entry for the BDR91 or OpenTherm boiler control.

    How is your system wired?
  11. The central controller is responsible for...

    The central controller is responsible for activating the boiler relay.

    What does your System Summary screen (long press Settings) show when the second HCE80 zones are calling for heat?
  12. Replies
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    Could it be the same issue as this, reset the...

    Could it be the same issue as this, reset the boilerís RF unit?

    https://www.automatedhome.co.uk/vbulletin/showthread.php?6415-Evohome-Opentherm-Bridge-Binding-issue&p=45611&viewfull=1#post45611
  13. Ally153 indicated: The feature is activated...

    Ally153 indicated:

    The feature is activated when the outside temperature gets close to or exceeds the room setpoint when the room temperature is already within 0.5C of setpoint. As you've noticed,...
  14. What I also noticed is that if you make any...

    What I also noticed is that if you make any adjustments to any zone’s schedule, warm weather saver is deactivated for all active zones.
  15. Thanks for the insight @ally153, that explains...

    Thanks for the insight @ally153, that explains what I am seeing.

    What determines when warm weather saver is activated for a zone? I donít think the outside temperature ever exceeded their set...
  16. I think the motivation is less user intervention....

    I think the motivation is less user intervention. Warm Weather Saver will save energy if a user doesnít normally turn off the heating or switch to eco mode in spring/autumn. It probably avoids...
  17. 1798 Some interesting observations. As...

    1798

    Some interesting observations.

    As reported previously, the outside temperature is 3C less than actual.

    I have both Cold Weather Boost and Warm Weather Saver activating at the same...
  18. Replies
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    Maybe you will need to use Signal2 BDR91Ts to...

    Maybe you will need to use Signal2 BDR91Ts to signal to the HCE80s to switch to cooling mode.
  19. Replies
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    The installer was indicating a cable needed to...

    The installer was indicating a cable needed to run from the zone valve to control the boiler.

    What you describe doesn’t require a cable back to the boiler, I think just wiring the high limit stat...
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    Yes, that’s correct

    Yes, that’s correct
  21. Replies
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    If you have a boiler control BDR91 you don’t need...

    If you have a boiler control BDR91 you don’t need the Zone valve to fire the boiler.

    If you need to switch the boiler to a DHW mode for instance by connecting a cylinder NTC, you can use another...
  22. Replies
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    The plumber is wrong, Evohome can wirelessly...

    The plumber is wrong, Evohome can wirelessly activate more than one BDR91 relay on DHW operation.
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    Was your System Summary in the System...

    Was your System Summary in the System Configuration menu showing 0%?

    There can be a delay before 0% is indicated and until then there may still be a call for heat.
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    Yes, this should work and would at least limit CH...

    Yes, this should work and would at least limit CH overshoot on DHW heating
  25. The boiler DHW operation is completely...

    The boiler DHW operation is completely independent from Evohome, Evohome doesn’t provide the time. The Eco learning is supposed to be based on usage, so I guess it’s essential that the boiler’s time...
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