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Type: Posts; User: TonySmith

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  1. Replies
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    I can't speak for most, but I certainly did...

    I can't speak for most, but I certainly did (although typically the logic would just be PI on the stuff I worked with and wrote). You've have a good idea of starting values, but as you say it could...
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    I missed your comments about control algorithms. ...

    I missed your comments about control algorithms. Possibly Sensible Heat have some insight into how Honeywell's control logic works, but I've not seen any manufacturer come up with hard facts as to...
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    For a single zone/room I think the Honeywell...

    For a single zone/room I think the Honeywell system's going to be well over the top. You don't really get the benefit unless all your important rooms are under its control, so it can bring the...
  4. The Reglo TRVs do have a threaded connection,...

    The Reglo TRVs do have a threaded connection, male on the body and a female sleeve on the head. I'm not quite sure how to measure the thread, it's about 30mm overall, but there's not enough length...
  5. Help me identify my TRVs - are they compatible with Honeywell Evohome?

    Hi,

    Can anyone identify these TRVs that we have in service, fitted by previous owner(s). Better still can anyone say if these are compatible with Honeywell HR80 actuators? We have two...
  6. I understand that, but I was hoping I could just...

    I understand that, but I was hoping I could just wire the thermostat in series with the BDR91 outputs, so I'd have wireless ON/OFF from the Evo but using local temp control. Apparently you can't do...
  7. Thanks. Regarding your last comment, does that...

    Thanks. Regarding your last comment, does that mean that Evo is on its way out? Shame as I think it would work quite well for us, assuming it would fit our TRVs of course.
  8. Out of interest, do you know why that would be? ...

    Out of interest, do you know why that would be? I was wondering about combining Evohome with an existing conventional cylinder thermostat, simply because the wireless stat is so ridiculously...
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    Combined wireless/wired/DIY system?

    Hi,

    I never sorted out the controls at home, and now we're moving again and the new place really needs something. By the time I've fixed the boiler pipework it will be a fully pumped conventional...
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    Thanks for the comment. And I'd still need a...

    Thanks for the comment. And I'd still need a separate programmer for the DHW.
  11. Replies
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    Thanks for the info Peter. Reading that guide...

    Thanks for the info Peter. Reading that guide suggests that you can only have a single setpoint for all radiators within a zone. To be honest that seems pretty useless - a real step backwards from...
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    Honeywell CM Zone - basic questions

    Hi,

    I'm considering using this system to replace a programmer that's giving trouble at the moment. We've a normal system with oil boiler, radiators and hot water, fully pumped. All the radiators...
  13. Pressurised System - low mains water pressure?

    Hi,

    I was thinking of changing to a pressurised system for our fully-pumped CH/DHW system, in place of the existing feed and expansion tank which I suspect doesn't give enough static head to...
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