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  1. Replies
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    Did you ever try using Lithium AA batteries in...

    Did you ever try using Lithium AA batteries in the CS92A ? After meaning to do it for over a year now I finally gave in and ordered some Energizer Ultimate Lithium AA cells for mine and fitted them...
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    No, I think it's either 60C or 62C. I run mine at...

    No, I think it's either 60C or 62C. I run mine at 54C and I had to turn it down from the default value.
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    It keeps heating the hot water continously for up...

    It keeps heating the hot water continously for up to 3 hours - which is how long it takes to log a hot water sensor fault after it stops reporting in.

    This is exactly what happened to me...
  4. If you have an old house, as we do, I think...

    If you have an old house, as we do, I think sometimes lack of insulation is overstated as a problem, compared to draughts.

    Several times now I've noticed the heating struggle to get some zones up...
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    My scripts recognise a lack of fresh data and put...

    My scripts recognise a lack of fresh data and put an actual gap in the graph instead of just repeating old data.
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    There is no other cylinder stat. It was...

    There is no other cylinder stat. It was originally a gravity fed hot water system with no stat which I converted to S-Plan. (vented) So there is just the Honeywell sensor.

    I have considered using...
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    I don't use Domoticz anymore, however I do use...

    I don't use Domoticz anymore, however I do use evohome-munin to graph my temperatures, which uses the same V1 API.

    90% of the time when there is an outage that affects the mobile apps, my graphs...
  8. The Alexa app is not hands free though, so I...

    The Alexa app is not hands free though, so I can't use it while driving.
  9. Not wanting to send/control, just passively...

    Not wanting to send/control, just passively monitor for debugging purposes - the log screenshot shown in the git repo is exactly what I'm looking for. You may recall I found software that worked with...
  10. Wow, this script is worthy of a thread of its...

    Wow, this script is worthy of a thread of its own.... Time to get a cc1101 and ardino.... :)

    Apart from the git repo are there any other threads here or on other forums discussing your software ?
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    I presume you meant a message pops up on the HR92...

    I presume you meant a message pops up on the HR92 itself with the zone name when you press the button - as I've never seen a message appear on the evotouch panel in response to pressing the button on...
  12. Opentherm is a two way protocol. The boiler can...

    Opentherm is a two way protocol. The boiler can send a lot of information to the thermostat, it's not just about the thermostat telling the boiler what to do. One of those things is a maximum allowed...
  13. Yes that was my point. Ultimately the user...

    Yes that was my point.

    Ultimately the user should be in control of deciding the absolute maximum flow temperature, regardless of whether weather compensation is in use or not. If the OpenTherm...
  14. You seem to be reading and responding to...

    You seem to be reading and responding to something that I didn't actually say.

    I didn't even refer to weather compensation at all. I actually said "is it Evohome or Intergas responsible for the CH...
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    Are you sure you mean the HR92 valve position (by...

    Are you sure you mean the HR92 valve position (by going to option 10 in the HR92 itself) or do you mean the heat demand for the zone reported in the system devices page in the installer menu on the...
  16. Charging the batteries probably generates...

    Charging the batteries probably generates additional heat but if the unit is left on the charger the batteries are rarely charging as they sit fully charged most of the time.

    The always on display...
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    The hot water control does indeed have frost...

    The hot water control does indeed have frost protection although I believe it activates at 5C not 10C.

    Your cold water supply must be very cold, I've never seen it trigger on my system! A couple...
  18. Nice one! :) I guess this quote answers the...

    Nice one! :)


    I guess this quote answers the long debated question - is it Evohome or Intergas responsible for the CH flow temperature control not functioning with OpenTherm control, with each...
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    Minimum hot water temperature is set indirectly...

    Minimum hot water temperature is set indirectly by changing the differential. Minimum = setpoint - differential, so increase the differential number.

    Keep in mind that if the minimum temperature...
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    5kW minimum output without cycling is still a lot...

    5kW minimum output without cycling is still a lot for spring/autumn. Even if anti-cycling doesn't kick in in the middle of the winter I'd expect that you'd see it in the warmer months when the house...
  21. Jump to the last post in my Valencia thread -...

    Jump to the last post in my Valencia thread - with Stroke set to 1 I've been happy with their performance on an HR92.

    I can't comment on how they will perform on an HR91 as I didn't have the...
  22. Unfortunately, yes. The HR91 has a fixed...

    Unfortunately, yes.

    The HR91 has a fixed "calibration" setting of about -2C (or it might be -3C, can't remember as it's a while since I tested one) so it sends a temperature reading that is 2-3...
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    The controller is fine - no issues with any other...

    The controller is fine - no issues with any other devices. The CS92A is just poorly implemented IMO.

    My original one was far worse, the replacement one has been a lot better, (but not problem...
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    Checked the signal - 4 flashes out of 5. ...

    Checked the signal - 4 flashes out of 5.

    Checked the battery voltage - both cells are 1.496 volts. Perfectly normal for an Alkaline battery (still about 80% life left) but down into the range...
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    Depending on when it happens, a loss of comms...

    Depending on when it happens, a loss of comms causes me one of two problems.

    1) If it happens while hot water is off, the system will refuse to heat the hot water -> cold water
    2) If it happens...
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