Last seen: Nov 27, 2025
I agree with all of that. 220 pages is perhaps 210-215 pages too much. Unfortunately there is no substitute for (a) understanding some basics (which...
@davidnolan22 Perhaps you could post some more info about your setup, house and system and WC parameters - you never know it may be possible to diag...
OK. I have 2.8 for DHW and 3.4 for space heating running at an actual FT of about 36. Yours does seem a bit low depending on what FT you were runnin...
Don't forget to increase max ft also. Mine is set to 55, way clear of the curve. I think that might even have been the default.
Suggest, as a test, you turn up the WC curve a lot so any change or not is unambiguous. I'd also set max ft to say 55 to get this parameter out of th...
Emptying the NR schedule will turn off NR mode yes. Im not sure you have a reason to do so yet though. With such a small reduction in O...
Not surprised by that. FWIW my Vaillant has done more or less exactly the same. Its COLD out there! With those figures I get an overall SCOP of 4, ...
Fair enough (the raging). Try not to let it upset you (easier said than done I know). Unlike some less fortunate people you remain in control it seem...
I think that's what they do, so they are varying ft. It would be good to see some plots at various oat values
No cycling there except possibly at midnight on the first day. You would expect so but don't forget cop varies with oat also. Also depends on how l...
Possibly. I haven't yet worked out what Vaillant do with water pump speed as I can't monitor it and don't have a reason to care. Why is it a 'proble...
So is the flow temp changing as well or is that fixed?
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