Last seen: Sep 3, 2025
Just to put the other, more positive side of this argument, I have now had my heat pump for just over a month and, because the temperature has been al...
Well in fairness it's his job! No need to answer the questions btw, you could as you say just leave it to the installer.
Worth measuring, some ashps have a temperature offset setting which could be fooling the app. Also worth measuring the other two ports on the llh. ...
I realise that maybe the case for your customers now but the statement that bigger is better (and more importantly that you don't have to change the f...
How well balanced is the LLH . Unless perfectly balanced they have the potential to cost 15% or more in efficiency and 5C in flow temperature. If y...
Have you got a buffer tank with 3 or 4 ports? Do you know what temp the flow gets down to during defrost?
@davidnolan22 Couple of questions/ideas Are you operating any kind of noise reduction mode Have you got all rads permanently on, no trvs ...
@gary Thats really interesting. My Vaillant takes (I think) a different approach and whacks the compressor up to 100% modulation immediately after...
Have you got any plots from melcloud showing how it works during recovery from defrost. I have heard an argument that, if you have lots of fancoils,...
I would be careful with that presumption. Minimum volume is at least in significant part about defrost, and what matters is the minimum volume availa...
It sounds rushed to me but also that it may not be possible to question the direction. I hope you are lucky! Since he has been doing it this way fo...
Caleffi speak in one of their tutorials about the benefits of a 3 pipe buffer. Someone else may have taken the trouble to understand it. As always ...
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