Last seen: Sep 19, 2024
@cathoderay Minute by minute actual OAT data is required so as to compare this to your Midea OAT data, averaged data is of no use. The reason I am...
@cathoderay If you still wish to have an independent OAT sensor, you could consider coating an MD02 with circuit board lacquer and then putting it w...
I may have suggested trying a fixed LWT for a period of time to stabilse the system, in a similar manner to switching a swinging industrial control sy...
What I am suggesting is to not have a setback, but keep your AA system, since this should automatically request the lowest LWT that meets demand whils...
Running the heat pump constantly at lower LWT, should help reduce the cycling and defrosting, until you can do something to alleviate the 'cold well' ...
Have you resolved your problem? Feedback is always welcome.
Have you resolved your problem? Feedback is always welcome.
@cathoderay I think that you will find that the cycling is most likely due to the 'cold well' effect, which appears to be shown by the raw data. W...
Excellent data once more. It would be interesting to see how the OAT value on the chart compares with OAT readings from local weather stations.
I'm afraid that I don't have details concerning the AA algorithms, but a normal industrial type control system would probably react in the same manner...
Thanks Kev, no rush. Could you also please add the RWT values so that I can ascertain when the compressor is running.
@kev-m Hi Kev. I'm going to run the raw data that you kindly supplied, but I need to set the initial conditions for your system. Could you please ...
- 26 Forums
- 2,171 Topics
- 47.8 K Posts
- 37 Online
- 5,744 Members
Join Us!
Podcast Picks
Latest Posts
-
RE: Powerwall 3 or Myenergi or something else?
Many of those tariffs are simple time of use tariffs, w...
By Temperature_Gradient , 1 hour ago
-
RE: Help me keep the faith with my air source heat pump installation
Yes thats the whole point of the flexis as regards tran...
By JamesPa , 2 hours ago
-
So far as I can tell designing for DT5, which is 'the n...
By JamesPa , 2 hours ago
-
Mitsu PAR-WT60R Wireless Controller - options
I hope I have satisfactorily installed the above wirele...
By DavidAlgarve , 4 hours ago
-
WC curve best discovered by experiment anyway as any lo...
By JamesPa , 9 hours ago
-
RE: Big Changes Coming to Our Heat Pump System
@editor your engineer's attitude is truly horrifying. ...
By GrahamF , 1 day ago
-
RE: How to choose Towel Rails for an ASHP
@rob-nezard yes absolutely. Here is the link and a pho...
By GrahamF , 1 day ago
-
@mixergy Thanks for the update, I would appreciate some...
By bontwoody , 1 day ago
-
RE: Is Your Broadband Router the Weak Link in Your High-Tech Home?
Unfortunately I'm not that well connected 😂 ...
By Scalextrix , 1 day ago
-
RE: A Customer's Lessons Learnt from a Heat Pump Installation in a Large House
It is interesting to see what our new Grant Aerona 290 ...
By GrahamF , 1 day ago
-
RE: Testing new controls/monitoring for Midea Clone ASHP
I've never physically seen it, but I seem to recall som...
By cathodeRay , 1 day ago
-
RE: Midea ASHP – how to set weather compensation
I noticed that too and thought the same thing, but then...
By cathodeRay , 2 days ago
-
RE: Ya can’t win! It is S*d’s Law!
@old_scientist If IOF is still running next late spring...
By Toodles , 2 days ago
-
RE: Electricity price predictions
Those of you on Agile will do well tomorrow; there are ...
By Toodles , 2 days ago
-
RE: Who’s Caved and Switched the Heating On Already?
We've been running our Ecodan system, installed in June...
By Sheriff Fatman , 2 days ago
-
Ok. Two schools of thought. The first is to run the ...
By JamesPa , 3 days ago
-
@drei Willing as I am to help, I don't think I'm yet ...
By JamesPa , 3 days ago
-
Selling 5 year old ASHP & Gas Combi Boiler - £590
Selling a 5-year-old Daikin Altherma Hybrid Air Source ...
By Paul G , 3 days ago
-
RE: Is a Valliant Inline 6kW heater a BUS buster?
Much of that is true in principle, but its not likely t...
By JamesPa , 5 days ago