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cathodeRay
cathodeRay
@cathoderay
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Joined: Feb 28, 2022
Last seen: Sep 18, 2025
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Topics: 17 / Replies: 2149
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RE: Midea ASHP – how to set weather compensation

I was just about to do that, and here it is. The CAP columns are the outputs at various OAT and leaving water temps (LWT , flow) in watts. As you may ...

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

You have in a way touched on the essential difference between WC and room stat based control: the former is continuously variable between X and Y (the...

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

I see you have now added this to you post, wasn't there when I first replied. I think you have rather given the game away here, insofar as you have an...

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

Thanks, on a quick inspection they look sensible, but I will review again tomorrow. Others may care to comment in the mean time.

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

They are definitely not the same! Even with the full manual, I still can't make much sense of it. But I have just had another look at my wired control...

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

I suspected such a discrepancy, but we need to be 100% sure. When you say "Lounge - Installer Heat Loss 40 Room Loss 1995 Mine Heat Loss 88 Room 438...

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

I am now even less sure we are! The manual page you posted doesn't appear in any manual I have seen for my heat pump. I also note from your footer ('s...

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

Oh dear. Evergreen appears to be a quick shot spanner plumber to heat pump planner toolkit from an outfit called EasyMCS. That rather sets the tone. I...

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

This simply isn't true. Midea heat pumps of the type we are talking about are controlled in one of two ways: (a) using weather compensation (WC): th...

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

@pash44pump - @jamespa has already come up with some useful comments. At this stage all I would add is: (a) yes, the analogue flow meter is very use...

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

Yes, I see that now, but I wonder what its internal diameter is? A very short length may not matter that much, but longer lengths may impede flow. My ...

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

Agreed. The WC and thermostat settings only become relevant when the system is running, which can't that far away now, but we haven't got there yet. ...

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
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