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Tasos
@tasos
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Joined: Nov 25, 2024
Last seen: Mar 20, 2026
Profile Activity
Topics: 0 / Replies: 87
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Reply
RE: Testing new controls/monitoring for Midea Clone ASHP

Thanks for recent data. Here are some more questions. I apologize, I am not using DHW and I am not familiar with schedules. What is your exact sc...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Testing new controls/monitoring for Midea Clone ASHP

@benson Thanks for new graph. Initial reaction is that fluctuation of the various quantities is quite inexplicable and needs some more parameters to b...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Testing new controls/monitoring for Midea Clone ASHP

@benson Indeed they do fluctuate more than I would expect. Perhaps a plot with set LWT, OAT and IAT would be more enlightening.

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Testing new controls/monitoring for Midea Clone ASHP

@benson I see, I misunderstood obviously. So you set LWT according to OAT, but not in WCC mode. You don't intend to use IAT using similar logic, I p...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Testing new controls/monitoring for Midea Clone ASHP

I meant the following rule you mentioned using: "second automation will adjust this outlet flow temp value if needed. For example, if the IAT is out...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Testing new controls/monitoring for Midea Clone ASHP

What you are actually implementing is a closed loop control idea, rather than the "open loop" WCC curve approach. It has been my postulate all along t...

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

Well, because there is a considerable delay in sensor information. This could have a serious effect on the performance of the closed loop system, such...

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

Hi all. I have also observed the strange behavior regarding LWT and T1s. By monitoring the relevant values I noticed, that if I calculate the T1s base...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Testing new controls/monitoring for Midea Clone ASHP

@cathoderay OK, thanks all. Much as I thought. I am using the same logic. As for the Midea expert, I very much doubt there exists one.

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Testing new controls/monitoring for Midea Clone ASHP

Hi all, I need your help again, because of the lack of clarity of Midea'a manuals. Here is my question: If one employs an external room thermostat (...

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Testing new controls/monitoring for Midea Clone ASHP

@jamespa My god you've gone into great depth to make things work for you. I wonder why this limit is not adjustable. Anyway, thanks again, I am not ...

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Testing new controls/monitoring for Midea Clone ASHP

@jamespa Thanks for replying. Fan coil units in Greece are indeed used for cooling in the summer, with the appropriate hardware. The main reason I a...

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
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