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cathodeRay
cathodeRay
@cathoderay
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Joined: Feb 28, 2022
Last seen: Sep 1, 2026
Profile Activity
Topics: 18 / Replies: 2975
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RE: Testing new controls/monitoring for Midea Clone ASHP

Nicely put... I only go on about AI being unreliable to counter the sometimes seemingly blind lemming like rush towards mass adoption.

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

I don't think so. They are only mild changes, usually one degree at a time, up to a maximum of three degrees in very extreme circumstances which are v...

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

Exactly the point I was making!

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

You might as well ask Uranus, and you might even get a more sensible answer! I think you will probably need to look in the code at how HA calculates...

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

Ah, yes, thanks for reminding us where this interval is set (and posting the R290 manual). The wording in my R32 manual is "t_T4_FRESH_H sets the refr...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Setback savings - fact or fiction?

Agreed the interval used is arbitrary but I use regular intervals for consistency convenience and comprehension, with hours, days and seasons making t...

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

@mk4 — thanks for the update. If you look at the chart I posted recently, you will see on the left hand side where it is doing normal cycling that...

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Setback savings - fact or fiction?

@robs — I get effectively the same answer, with a slightly different approach/layout:     I reverse engineered your 1.98 kWh to get ...

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Setback savings - fact or fiction?

Strictly speaking, running in weather compensation mode the heat pump tries to achieve a set LWT, based on a curve which you have determined will heat...

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Setback savings - fact or fiction?

Here are the areas for the 'non-defrost' cycle shown above, area 1 is energy saved during off, area 2 is extra energy used during recovery, given a ba...

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Setback savings - fact or fiction?

Sorry, my fault, I only saw defrost, not its prefix. A 'normal' cycling stop and start then, and happening because your 'thermostat' (room stat?) is t...

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: What determines the SOC of a battery?

Indeed. Another nail in the voltage-for-SoC coffin.

7 months ago
Forum
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