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JamesPa
@jamespa
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Joined: Apr 3, 2023
Last seen: Nov 14, 2025
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Topics: 18 / Replies: 3373
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RE: Midea ASHP – how to set weather compensation

Adaptive, in this case, means a mode which adapts its behaviour, over a period of time (days), to the house (basically it learns about the house chara...

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

True, but that neither circumvents the thermodynamics not the comfort factors described above. That depends on the thermostat. If it is an exter...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Balancing a low loss header/buffer tank on a Grant Aerona 2 13kw r32 system

Can you clarify what the problem is that you are trying to solve by balancing, whats the objective/currently 'broken'. As an aside (or perhaps not) s...

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

Weather compensation is really important for heat pumps and, correctly adjusted, will save you between 10-20% (or in some circumstances more) in runni...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan help - flow temperature spikes when operating in weather compensation mode

That's reassuring. Hopefully it would have returned to space heating if there demand was there.

12 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 agree with your conclusions and I agree with the above. If they try to argue its your system, you have a heat exchanger which they presumably insta...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan help - flow temperature spikes when operating in weather compensation mode

Presumably it stops heating when the DHW reaches temperature, so if it only needs 30 mins then it will only take 30mins and then return to space heati...

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

@cathoderay See also my edited previous post and in particular pump test mode. Good luck.

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

The water pump manual tells us there are 3 pins, control, feedback and voltage reference ( presumably the return is via the case, ie ground) or if th...

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

I think you are right about multi-core, I just saw it in the manual. One of the cables appears to be the pwm cable. Im thinking narrowboats, whic...

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

Two wires doesn't seem enough - this isn't a boat with return via the chassis (I presume) so I would have expected three! That said I thought that PW...

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

Its not pretty but its pretty clear, pump speed is constant. However the manual seems to say it isnt! Something odd!

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
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