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Tasos
@tasos
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Joined: Nov 25, 2024
Last seen: Mar 20, 2026
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Topics: 0 / Replies: 87
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Reply
RE: Midea ASHP – how to set weather compensation

@pash44pump I don't know the procedures in UK, but in Greece every property has an energy certificate, which is the starting point for heating/cooling...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Midea ASHP – how to set weather compensation

What are the weather compensation settings ? Are you sure the system runs according to these settings ? Are there internal thermostats at low temper...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Midea ASHP – how to set weather compensation

Which part of the sentence do you consider complete nonsense: "complicated" or "ineffective" ?

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Midea ASHP – how to set weather compensation

Weather compensation is a complicated and ineffective way to control heat pumps. Your house was OK when you were on oil, because oil heater control de...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Midea ASHP – how to set weather compensation

But this is the whole point of our lengthy and interesting conversation. At this point, I owe to apologize if my English sounded a bit hostile, this w...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Midea ASHP – how to set weather compensation

@jamespa There are numerous, very detailed, simulators that show the capabilities and benefits of each approach. Further, the delay you mention, is ac...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Midea ASHP – how to set weather compensation

@jamespa Classical PI controllers need tuning i.e. commissioning. This is difficult to achieve, unless well-trained. This is why weather curves were e...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Midea ASHP – how to set weather compensation

@jamespa OK. Let me repeat that I started this post because I think the "weather curve" method is odd, outdated and wrong. Here is my reasoning: 1. ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Midea ASHP – how to set weather compensation

@cathoderay I don't think (b) is fixed flow temp. Where did you see this ? If this is the case, it destroys all the benefits of an inverter driven pum...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Midea ASHP – how to set weather compensation

@jamespa You don't need to predict anything. A PI controller effectively does all these.

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Midea ASHP – how to set weather compensation

@jamespa Every house needs a specific heat power to bring it to a set temperature. This means a specific water temperature. If you lower this temperat...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Midea ASHP – how to set weather compensation

@cathoderay OK. It is difficult to argue through messaging. I ask you to bear with me. There are 3 ways to control a Midea heat pump, but in the 3rd m...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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