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cathodeRay
cathodeRay
@cathoderay
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Illustrious Member
Joined: Feb 28, 2022
Last seen: Sep 10, 2025
Profile Activity
Topics: 17 / Replies: 2125
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Reply
RE: Midea ASHP – how to set weather compensation

This is true, but what weather compensation does when set up correctly, and even better when tweaked by Homely or whatever, is match the flow temp to ...

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

I will. We tend to have robust discussions here, but they very rarely aggressive or hostile. Most of us are primarily interested in getting to the rig...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Mitsubishi Advanced Auto Adaptation

I think you will find you were agreeing with me, it was I who said there was a case for occupiers rather than installers doing it! I'm interested to...

10 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Midea ASHP – how to set weather compensation

@tasos - if you have a Midea heat pump, as I do, I think you will find it can only run in two ways, fixed flow temp (LWT, leaving water temp) with a r...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Massive Electricity Cost for Running My Air Source Heat Pump

I'm afraid it comes with the territory. If all installers were perfect, and always did a perfect handover, things would be different, but that is not ...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: In the Bleak Midwinter... Midea heat pump performance, poor COP and windchill in action

@jamespa - I've done some more research... (1) it looks like the pump test mode is very basic. It is accessed via the 'For Serviceman' menu. When ru...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: In the Bleak Midwinter... Midea heat pump performance, poor COP and windchill in action

@jamespa - thanks. I'll wait for better weather before opening the cabinet! It might be worth seeing if other Midea owners here on the forum have...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: In the Bleak Midwinter... Midea heat pump performance, poor COP and windchill in action

Sorry, I should have said non-metal (ie wood, GRP) seagoing boats! Even on non-metal boats, galvanic corrosion is a major problem, and stray currents ...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: In the Bleak Midwinter... Midea heat pump performance, poor COP and windchill in action

I'm pretty sure the two wires visible are multi-core. The secondary pump for example has only one wire (cable) going to it, but it must have more than...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: In the Bleak Midwinter... Midea heat pump performance, poor COP and windchill in action

@jamespa - some more info such as it is (photos taken a while back): (1) I appear to have a Grundfos primary pump (this is the inside of the outdoor...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: In the Bleak Midwinter... Midea heat pump performance, poor COP and windchill in action

@jamespa - here's a not very pretty plot of OAT and flow rate for the last 48 hours. The right hand end is not typical, as the OAT exceptionally high....

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: In the Bleak Midwinter... Midea heat pump performance, poor COP and windchill in action

I think this is very pertinent. I believe the Midea reported flow rate (of around 1.4cu m/h) is about right because there is an anlague flow meter in ...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
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