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  1. Replies
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    If there is no heat demand the boiler relay will...

    If there is no heat demand the boiler relay will remain off continuously. If there is 100% heat demand the boiler relay will be on continously. In either case the cycle time is not applicable.

    If...
  2. Which version of the controller do you have ? ...

    Which version of the controller do you have ?

    The Wifi model will show you overrides set by the HR92 on the controller, so you would be aware that there was an override, although perhaps not...
  3. What about if you disable it on the HR92's...

    What about if you disable it on the HR92's instead ?
  4. Having read the previous thread about this...

    Having read the previous thread about this problem as well it sounds like the comms are a little bit unreliable between HR92's and Controller, and that could be partly interference and partly the...
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    The bricks in my internal walls are unbelievably...

    The bricks in my internal walls are unbelievably hard. If you accidentally drill into the mortar between the bricks they're easy but other than that even a brand new masonary drill bit really...
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    Similar here. The wiring to my original...

    Similar here. The wiring to my original (mechanical!) thermostat that was replaced by the ATF600 is full 1.5mm flat 3 core 240v mains cable - the same stuff that ring circuits are wired with. Mine is...
  7. "Manual override off", I assume you mean the...

    "Manual override off", I assume you mean the Heating Off quick action ?

    What you need to understand about how the system works is that it's effectively the individual HR92's that call for heat...
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    Not for me - plaster over solid brick for...

    Not for me - plaster over solid brick for interior walls. I don't fancy carving out the space for a backbox from brick...it's hard enough just to drill holes in the brick to mount a shelf :p
    ...
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    Check the polarity is correct, also from memory...

    Check the polarity is correct, also from memory there are three terminals on the mount but only two should be used so make sure you're using the correct ones. I can't see any reason why the 5v wall...
  10. So do we know that the motor is normally driven...

    So do we know that the motor is normally driven at 3 volts ? Has anyone measured it ? In stroke 1 or stroke 0 mode ?

    There is a clearly audible difference in motor turning speed between the two...
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    I think the power supply provided with the ATF...

    I think the power supply provided with the ATF 600 is just poor - mine measures about 4.6 volts vs the 5.0 volts from the desk stand power adaptor, and when you couple that with voltage drop from a...
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    Ah, sorry you're right - I forgot there was a...

    Ah, sorry you're right - I forgot there was a permanent pigtail coming out of the transformer.

    Mine is mounted inside a spare corner of the wiring centre box well away from any high voltage...
  13. I would say battery life would be reduced as it...

    I would say battery life would be reduced as it takes (roughly) the same total amount of energy (Joules) to operate the valve whether you do it quickly or slowly, and the voltage drop of the diodes...
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    Surely it's easier to just buy a longer piece of...

    Surely it's easier to just buy a longer piece of cable instead of joining it ?? It's just figure of 8 cable with screw terminals to go into at both ends...nothing fancy needed.

    On my install the...
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    Time for some new batteries then ? NiMH batteries...

    Time for some new batteries then ? NiMH batteries don't like to be continuously float charged so in the Evohome application they won't last more than a few years due to this.

    I'm thinking of...
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    433Mhz key fobs (if you mean car key fobs) are...

    433Mhz key fobs (if you mean car key fobs) are all digital. As are most other things that use 433Mhz like weather stations.

    It's been a very long time since any sort of remote control was...
  17. Positioning the ABV "as far away from the boiler...

    Positioning the ABV "as far away from the boiler as possible" is overrated IMHO. My ABV is only just past the (external) pump, so a total loop length from the boiler of under 2 metres or about a...
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    Yes, because you bound the boiler control...

    Yes, because you bound the boiler control function to your hot water valve. So every time the heating calls for heat it will heat the hot water too - even if it's over temperature...

    Download the...
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    Sorry but you still have it configured wrong and...

    Sorry but you still have it configured wrong and still don't understand how it should be working.

    Unless you have a BDR91 which is connected directly to the boiler, you do not bind a boiler...
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    If you only have a hot water relay and a heating...

    If you only have a hot water relay and a heating relay you should NOT select a boiler control relay or bind it.

    You will need to clear the bindings on the relays (15 second press of the button...
  21. Personally I would unregister the device from...

    Personally I would unregister the device from your TCC account and then (if you don't plan to use Evohome in the future) close the TCC account as well. Let the new owner create a new account and link...
  22. Just because your HGI80 received a temperature...

    Just because your HGI80 received a temperature measurement from the zone doesn't mean the controller did. Presumably the HGI80 is not in exactly the same location in the house as the controller so if...
  23. I assume you are graphing temperatures from the...

    I assume you are graphing temperatures from the API ? If so, a temperature of "128" degrees actually means "unknown" temperature. You will see 128 at the same time that the controller displays an...
  24. You say you've bound the DTS92 to the BDR91 -...

    You say you've bound the DTS92 to the BDR91 - either you're using your terminology incorrectly or you've done the binding wrong.

    You don't bind a DTS92 directly to a BDR91 with an Evohome system -...
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    No settings will be lost by rebooting the...

    No settings will be lost by rebooting the controller. It will take a while before all zones are showing temperature readings however - typically around 30 minutes. The red warning LED's on the boiler...
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