Renewable Heating Hub Heat Pump Forums

Search with Wattson
Forums
Renewable Heating
Air Source Heat Pum...
Ecodan Compensation...
 
Notifications
Clear all

Joining the Renewable Heating Hub forums is completely free and only takes a minute. By registering you’ll be able to ask questions, join discussions, follow topics you’re interested in, bookmark useful threads and receive notifications when someone replies. Non-registered members also do not have access to our AI features. When choosing your username, please note that it cannot be changed later, so we recommend avoiding brand or product names. Before registering, please take a moment to read the Forum Rules & Terms of Use so we can keep the community helpful, respectful and informative for everyone. Thanks for joining!

Ecodan Compensation Curve Minimum Temp 25 Degrees

 
Air Source Heat Pumps (ASHPs)
Last Post by Sellerton 4 years ago
3 Posts
2 Users
0 Reactions
4,255 Views
RSS
 Sellerton
(@sellerton)
New Member Member
Joined: 4 years ago
Posts: 2
Topic starter 11/04/2023 10:23 pm   [#927]

My Ecodan doesn't seem to allow me to set a compensation curve that will drop flow temp below 25 degrees celcius. In essence at 10 degrees outside I want all heating turned off with normal DHW function. Is my only option to turn off heating completely? I Assume I'm missing something; I can only find oblique reference to the 25 degree lower limit on the Web. 

Any advice would be very much appreciated.



   
Quote
Topic Tags
Ecodan Compensation Curve Minimum Flow Temp
 HarriUp
(@harriup)
Estimable Member Member
Joined: 5 years ago
Posts: 108
12/04/2023 12:49 pm  

Well, generally a heating system is controlled by demand rather than another parameter. Even if you could lower the compensation curve further it would still be running – but I suspect it would become less efficient trying to put so little heat in.

However, in the controller settings you can find Service Menu > Operation Settings > Summer Mode, which is set to Off by default. But you have the options to set Heating On (4—19°, default 10°) and Heating Off (5—20°, default 15°) temperatures for ambient temps, and Heating On and Heating Off Judgement Times (both 1-48 hrs, default 6). These aren't explained anywhere, so perhaps a call to the Ecodan support line is in order, but I would presume that the temps are just setting on below/off above values with a hysteresis to allow it to run for a while and the judgments perhaps set a minimum time it has to be below temp before the heating is actually run, and a maximimum run time for while it is operating below the off ambient temp, after which it turns the heating off again until ambient drops below the on temp. Perhaps.

My summer mode is completely off via a schedule. Keep us informed if you try this option out!

 


Mitsubishi EcoDan 8.5 kW ASHP - radiators on a single loop
210l Mitsubishi solar tank
Solar thermal
3.94kW of PV


   
ReplyQuote
 Sellerton
(@sellerton)
New Member Member
Joined: 4 years ago
Posts: 2
Topic starter 14/04/2023 10:14 pm  

Thanks Harri. Interesting idea. I'll give it a go and let you know what happens.



   
ReplyQuote
Forum Jump:
  Previous Topic
Next Topic  
Related Topics
Topic Tags:  Ecodan (42) , Compensation Curve (1) , Minimum Flow Temp (1) ,
Share:

SPONSORS

Join Us!

Installer Finder

Degrees of Separation

Latest Posts

SPONSORS

Click to access the login or register cheese
Protected By
Shield Security PRO