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Old January 13th 19, 05:19 PM posted to uk.d-i-y
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Default how hot do you run you CH boiler

On 13/01/2019 15:51, Graham. wrote:


Look at the Honeywell Evohome system
http://www.heatingcontrols.honeywell.../evohome-Main/


The site exists, but not with the www.


I had a quick look, thanks, but that's overkill for me. And thanks to
the others regarding isolating/regulating.


--
Cheers, Rob

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Old January 13th 19, 05:29 PM posted to uk.d-i-y
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Default how hot do you run you CH boiler

John Rumm used his keyboard to write :
However I just found this:

https://www.vaillant.co.uk/downloads...ons-261442.pdf

In its description it says:


John - I am reading that as suggesting it would provide a single box
solution for my being able to split my CH and HW temperatures. Do you
agree?
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Old January 13th 19, 08:08 PM posted to uk.d-i-y
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Default how hot do you run you CH boiler

On 13/01/2019 17:29, Harry Bloomfield wrote:
John Rumm used his keyboard to write :
However I just found this:

https://www.vaillant.co.uk/downloads...ons-261442.pdf


In its description it says:


John - I am reading that as suggesting it would provide a single box
solution for my being able to split my CH and HW temperatures. Do you
agree?


The quick look I gave it appeared to suggest that. What I am not sure of
is how you would set the various parameters without also having some
kind of controller in there... What timer/programmer have you currently
got?

--
Cheers,

John.

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Old January 13th 19, 08:47 PM posted to uk.d-i-y
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Default how hot do you run you CH boiler

John Rumm explained :
The quick look I gave it appeared to suggest that. What I am not sure of is
how you would set the various parameters without also having some kind of
controller in there... What timer/programmer have you currently got?


Just a basic electronic one, with battery backup, with an override
until next action, on for one hour when off on both CH and HW.

If it will work, the intelligence for setting it has to be in the
boiler itself, so it must signal the HW demand back to the boiler, via
the ebus. The boiler does have ebus terminals. It also has terminals
for the NTC outdoor sensor - Do you happen to know whether the NTC is a
10K or 100K?

The manual for the boiler is here -
https://www.vaillant.co.uk/downloads...ual-876622.pdf

It has rather a lot of settings in there, monitoring options and fault
codes. Unfortunately I cannot find any mention of suitable extra
controls and options at all. As you suggested, there is no 'big
picture'.


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Old January 13th 19, 09:39 PM posted to uk.d-i-y
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Default how hot do you run you CH boiler

On 13/01/2019 20:47, Harry Bloomfield wrote:
John Rumm explained :
The quick look I gave it appeared to suggest that. What I am not sure
of is how you would set the various parameters without also having
some kind of controller in there... What timer/programmer have you
currently got?


Just a basic electronic one, with battery backup, with an override until
next action, on for one hour when off on both CH and HW.

If it will work, the intelligence for setting it has to be in the boiler
itself, so it must signal the HW demand back to the boiler, via the
ebus. The boiler does have ebus terminals. It also has terminals for the
NTC outdoor sensor - Do you happen to know whether the NTC is a 10K or
100K?


I *think* its 10K, but I am by no means sure.

The manual for the boiler is here -
https://www.vaillant.co.uk/downloads...ual-876622.pdf


It has rather a lot of settings in there, monitoring options and fault
codes. Unfortunately I cannot find any mention of suitable extra
controls and options at all. As you suggested, there is no 'big picture'.


On mine all those kids of things can be set from the VR470, but I could
not do it from the boiler's internal display / interface alone. Hence
the suspicion that you would also need something like the VR350 to give
you the access to the settings...

(alternatively there is I believe PC software available to talk to the
eBus for configuration and reading current state etc - so you could
possibly "configure and forget" it that way).


--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
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| John Rumm - john(at)internode(dot)co(dot)uk |
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Old January 14th 19, 08:48 AM posted to uk.d-i-y
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Default how hot do you run you CH boiler

John Rumm explained on 13/01/2019 :
(alternatively there is I believe PC software available to talk to the eBus
for configuration and reading current state etc - so you could possibly
"configure and forget" it that way).


I had no idea about that. I will see if I can find it..
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Old January 14th 19, 09:34 AM posted to uk.d-i-y
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Default how hot do you run you CH boiler

Harry Bloomfield has brought this to us :
I had no idea about that. I will see if I can find it..


DIY interfaces here -

https://translate.google.com/transla...Febuskonverter


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