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  1. Replies
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    It's a combi, so there should be no motorised...

    It's a combi, so there should be no motorised valves as the system isn't zoned as far as i'm aware.
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    No, I meant you can close the internal bypass...

    No, I meant you can close the internal bypass completely. Think you misunderstood.
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    Yeah with small/undersized rad sizes you need to...

    Yeah with small/undersized rad sizes you need to be ideally running it at 75oc. You're possibly having the opposite effect running at lower temperatures - as the boiler not meeting/maintain set...
  4. Have you considered just heating the whole house?...

    Have you considered just heating the whole house? If it's well insulated ours uses less gas than having set times on, using EvoHome. Even though we are out at work all day I have on from the morning...
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    Yes so it's basically behaved really as I...

    Yes so it's basically behaved really as I expected - part of the issue is your restricted flow when you've balanced them down. I'd expect the boiler turn the boiler on and off as you describe.


    ...
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    Funnily enough I had mine set on 10 and found it...

    Funnily enough I had mine set on 10 and found it didn't update quick enough when drawing off. However changing to 7oc with a 2 min overrun seemed to be a sweet spot. Does it update more regularly...
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    Out of interest, what's you differential setting...

    Out of interest, what's you differential setting on?
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    No matter what you'll still have the same issue -...

    No matter what you'll still have the same issue - a Green IQ Vaillant will modulate 1:10, but that still will only modulate to 3.5kw Which is more than just one rad running at once.

    Have you...
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    The place i'd start is open all your lockshields...

    The place i'd start is open all your lockshields full. Put pump into 100% mode and close the bypass some so it's 3/4 closed. Set flow temp at 70oc. Run the system from cold and see if all the rads...
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    Put it in 100%, and close the bypass some more....

    Put it in 100%, and close the bypass some more. Not all the way shut but just open enough - get your installer to do this for you. You can't as it means removing the front of the boiler and you can't...
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    The pump probably want's adjusting and the...

    The pump probably want's adjusting and the internal bypass adjusting too, have you got an external bypass?

    How quick does the anti cycle kick in when the Partial Load is set to Auto? Anti Cycling...
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    Does it do S.53? How old is the boiler; there's...

    Does it do S.53? How old is the boiler; there's probably another issue at play rather than the Output being too large. It's a 38kw boiler but it'll do only 30kw on heating, within that it'll modulate...
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    The solution to your overshooting would be to...

    The solution to your overshooting would be to wire your Cylinder Stat back in series with the BDR91 and set it at 60oc.

    Has replacing the batteries resolved your issue? As you've said the battery...
  14. The HR91s will compensate for the radiator so...

    The HR91s will compensate for the radiator so will show less.

    The Main Panel is over due to the heat from the panel. I've had to offset mine -1.5oc because of this to get a true reading.

    My...
  15. Are your HR91s actually fitted to any radiators...

    Are your HR91s actually fitted to any radiators yet?
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    My own system I never have any issues with, other...

    My own system I never have any issues with, other than once when the batteries were low - as to be expected. Again others I have had no issues at all with.

    I have one customers who used to...
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    On another note, are they doing the Beta testers...

    On another note, are they doing the Beta testers like the last firmware update?

    As an Installer of these systems i'd love to be a part of this.
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    What cylinder do you have?

    What cylinder do you have?
  19. As others have said if it Ain't Broke don't fix...

    As others have said if it Ain't Broke don't fix it!

    I set and forget my Evohome and it works flawlessly! Even if it was unsupported I don't see why it would make me change if the system still...
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    Glad to hear that it's still Honeywells main...

    Glad to hear that it's still Honeywells main product for Connected Heating, with it being on the quiet front of late I was getting a bit worried it might get fully replaced by a new system due to the...
  21. Do you think there'll be a new Evo panel coming?

    So as other manufactures are catching up with Smart TRV heads and other things, Honeywell seem to be stuck at the moment with their current offerings on the 'Smart' side of things. There's just been...
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    Your discharge shouldn't really be dripping then,...

    Your discharge shouldn't really be dripping then, the Safety Valve will only blow off at 90oc and that's highly unlikely as one, your boiler would struggle to get to this and two, either the existing...
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    I've had a faulty one before now, swapped out and...

    I've had a faulty one before now, swapped out and seemed much better.

    Batteries have to be around 1.6v, soon as they start dropping south to 1.5v unit plays up.

    Make sure battery tensions are...
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    Yes a customer had them fitted.....4 out of 7 of...

    Yes a customer had them fitted.....4 out of 7 of them set on fire. He put water based CH back in after ripping his original system out....
  25. I have mine set at 3 cycles specifically for the...

    I have mine set at 3 cycles specifically for the reason so that boiler isn't cycling as much, and a minimum on time of at least 2 minutes. I have an older non condensing boiler and whilst it probably...
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