Last seen: Nov 17, 2025
Thanks for the explanation. My desired IAT is in fact 19 not 21 degrees, so the latter figures apply, and the OAT was at times close to 6 degrees, but...
Thanks for doing the modelling. It is still installed. Could you please elaborate on how why the PHE is the root cause? I don't have an absolute ...
Of course I am sceptical of heat loss calculators - after all, they are classic whatiffery models! What if the walls are made of this and are that thi...
I'm not sure they all are. The hallmark, at least on my system, of a defrost cycle is the LWT falls below the RWT (if you think about it, it does make...
@harriup - thanks, especially for posting the charts. We now have data from three installations, yours mine and @kev-m's, and they all show some form ...
I wasn't suggesting it doesn't match demand in that quote, it fact the opposite, it does match demand in the conditions I was talking about. However, ...
Here it is 24 hours from noon yesterday to noon today:
Will post the data after I have had some lunch.
My point is we are not in these conditions, warm house in mild conditions, where we know about and expect cycling as the only way further to modulate ...
It's not on a graph, it's in the raw data, which appear to suggest my heat pump spends most of it's time running at the 'min' capacity level, even whe...
Certainly, or it could just be my Midea unit. The problem is that unless and until we have more data, we just don't know. I'm hoping others who coll...
I can't actually find any of these settings in the Midea Engineering Data manual. There is something called dT1SH, which 'sets the temperature differe...
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