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Tasos

@tasos

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Joined: Nov 25, 2024
Last seen: Oct 20, 2025

Topics: 0 / Replies: 46

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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...

11 months ago

Forum

Air Source Heat Pumps (ASHPs)

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...

11 months ago

Forum

Air Source Heat Pumps (ASHPs)

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 Let me repeat that I started this post because I think the "weather curve" method is odd, outdated and wrong.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. ...

11 months ago

Forum

Air Source Heat Pumps (ASHPs)

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...

11 months ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Midea ASHP – how to set weather compensation

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

11 months ago

Forum

Air Source Heat Pumps (ASHPs)

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...

11 months ago

Forum

Air Source Heat Pumps (ASHPs)

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...

11 months ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Midea ASHP – how to set weather compensation

@jamespa I refer to the Midea controller thermostat, not an external one. This said, I do not pretend to know what heat pump designers design, but the...

11 months ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Midea ASHP – how to set weather compensation

@jamespa Modern heat pumps are inverter driven. A room thermostat will not turn the pump on and off, but regulates it evenly around the set point. Thi...

11 months ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Midea ASHP – how to set weather compensation

I really don't see the point of using a weather curve when an indoor thermostat is available. A heat pump that adjusts according to a set indoor tempe...

11 months ago

Forum

Air Source Heat Pumps (ASHPs)

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