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MK4
MK4
@mk4
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Trusted Member
Joined: Jan 27, 2026
Last seen: Apr 9, 2026
Profile Activity
Topics: 0 / Replies: 69
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Reply
RE: Air source heat pump roll call – what heat pump brand and model do you have?

Forum Handle: MK4 Manufacturer: Midea Model: M Thermal Arctic HT Series 16Kw using R290 MCH-V16WD2RN7 Type: ASHP Arrangement: Mono Area of C...

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

@cathoderay Based on your data graphs I am also of the opinion that you run wc and the only plausible explanations I can think of are a) either you...

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

@cathoderay If you feel like experimenting, please set Room Temp to YES and Water Temp to NO in your wired controller, just to see if you will be p...

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

@cathoderay The only explanation that crosses my mind is that your autoadapt script bypasses the wired controller. And this may explain one of you...

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

@cathoderay Friend, I think your set up is a fixed LWT. This is what I understand by reading the 2nd manual page you posted. According to the same ...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Advice on potential HW Cylinder size

@jamespa The installer has simply dismissed the idea as non-standard. The volume issue was practically raised by me but he refuses to leave his com...

2 months ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: Midea ASHP – how to set weather compensation

@cathoderay It seems end user functionality has increased over time. BTW they have not changed the relevant icon, it still looks like a petrol pump… ...

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

We do have the app set up, let’s see what data it gathers (seems to be a day behind though…). And yes, you guessed correctly the Lizzie curve! I am ...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Advice on potential HW Cylinder size

We just replaced our oil boiler with an ASHP. We use solar panels (not PVs) with a rooftop 160lt solar cylinder for DWH and as backup (for the clou...

2 months ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: Midea ASHP – how to set weather compensation

It has been more than 48h since our midea R290 was commissioned. WC is enabled (albeit with a “Lizzie” type of curve) as well as the time schedule opt...

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

Well, it does cut off the radiator from the circuit if we turn it all the way, whereas the remaining radiators in the same circuit keep operating. I t...

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

That was exactly my hopeful understanding, that the room set temperature is used as an on/off mechanism and while the ASHP is on it works purely on wc...

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
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