Last seen: Sep 20, 2025
High thermal mass, plus that chart is very zoomed in. If you look at the 48 hour chart (the one with the compressor frequency on it) you will see the ...
No. My auto-adapt script (tweaks WC end points based on actual vs desired IAT) logs its activities, and, looking at the log, no changes to the WC were...
The chart accurately represents the data, but the data may or may not be accurate. It comes from the Midea wired controller, via modbus. There is no r...
A flow rate of 0.36 cubic metres per hour seems quite low. But the real point here it seems to me is Midea are missing a trick here. By using a steady...
Unfortunately, yes. I added it for the benefit of othess interested in seeing how COP is affected by lower OATs and defrost cycles.
I've zoomed in on a section of the earliest chart, and added drop down arrows at the start of each defrost cycle: It se...
PS another useful observation from the last chart I posted is the effect of low OATs and defrost cycles on hourly COPs: around 4 on the left hand side...
@tasos - I see you have now edited your post and added another question (my immediate past post was in part a reply to your unedited post). I thin...
@tasos - never one to knowingly miss an opportunity to say weather compensation isn't any good! @benson - my understanding is this: T1 is the actual...
Thanks, that might explain the when, and possibly the why. My 't_T4_FRESH_H' (the relevant setting, though it is not exactly clear, under Heat Mode se...
@cliffhanger - seriously though, I have no idea. What I do know is that any sensor can be duff eg the one that tells you your car is over-heating when...
Dunno, Dec might
Latest Posts
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RE: Help me keep the faith with my air source heat pump installation
I'm sure you are right, I was just trying to understand...
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Which temperature sensor for a Steibel buffer and Ecodan?
My installer configured our Ecodan 14kW system with a 1...
By downfield , 10 hours ago
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RE: Testing new controls/monitoring for Midea Clone ASHP
Thanks- interesting and useful observations and I did n...
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RE: Big Changes Coming to Our Heat Pump System
General Ignorance, the universal enemy in so many ways!
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RE: Preparing for 2nd winter in new build house.
Yuch! So that's basically just an on/off control. I...
By Transparent , 18 hours ago
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Good day everyone. I'm new here and have a few question...
By Edin67 , 22 hours ago
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RE: Boxt Heat Pump Installation Experience
Welcome to the forums. Was there any formal in-person...
By Mars , 24 hours ago
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RE: Say hello and introduce yourself
@transparent Morning. Just put a lengthy post on the AS...
By sbm74 , 24 hours ago
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RE: MCS certificate SCOP vs real-world performance
That may be contributing to lower than expected SCOP. ...
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RE: Mitsu PAR-WT60R Wireless Controller - options
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@jamespa Thanks. Yeah any adjustments Ive made at pr...
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RE: How to choose Towel Rails for an ASHP
@rob-nezard yes absolutely. Here is the link and a pho...
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@mixergy Thanks for the update, I would appreciate some...
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Unfortunately I'm not that well connected 😂 ...
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It is interesting to see what our new Grant Aerona 290 ...
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RE: Midea ASHP – how to set weather compensation
I noticed that too and thought the same thing, but then...
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RE: Ya can’t win! It is S*d’s Law!
@old_scientist If IOF is still running next late spring...
By Toodles , 5 days ago
