Hello David,
I have got nowhere with Mitsubishi. They are not interested in my pocking into finer details. Given that I probably cannot sell this 6kW easily, I think I will need to make a control like yours and make the best of it. My issue is different to yours. Mine is not oversized, but COP seems to ‘crash’ sometimes. I am getting excellent COPs at times and will probably spend my time working out how to control it better and minimise the ‘crashes’.
See the graph showing a big dip in output whilst the input power drops very little… it remains a puzzle!
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