Renewable Heating Hub Heat Pump Forums

Search with Wattson
Forums
Renewable Heating
Air Source Heat Pum...
Midea M-thermal Mon...
 
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!

Midea M-thermal Mono ASHP - setting Schedule / Timer

 
Air Source Heat Pumps (ASHPs)
Last Post by cathodeRay 3 years ago
2 Posts
2 Users
0 Reactions
3,044 Views
RSS
 Dealstriker
(@dealstriker)
New Member Member
Joined: 3 years ago
Posts: 1
Topic starter 21/03/2023 12:32 pm   [#891]

Good morning. New member. Recently installed 16kW Midea M-thermal Mono ATW Heat Pump - - providing DHW and supply to both  UFH & rads. 

Seeking advice from more experienced members here. 

My grid electricity is around 40% cheaper from 2330  - 0630 than daytime.  We very rarely need 'hot' DHW after 2100.  So ....   obviously I can use my heating (UFH & Rads)  controller to switch off demand in the evenings when the house is warmed up & grid electricity is 'expensive' - - but how do I do the same for my DHW ??

I have tried to use the 'Schedule / Timer ' options on the Midea wired controller - - but it is not clear to me how to achieve this  

When I go into the controller Schedule panel it offers START and END times (clear enough!) but also requires MODE (HEAT / COOL / DHW) and TEMP.  

My questions ->

* what is the best way to 'switch' off any DHW heating demand on my ASHP in the evenings ... delaying that demand until I have cheaper grid electricity at night ?

* is it to use the SCHEDULE functionality in the Midea controller ?

* if so, do I just need the TIMER screens ? ignore WEEKLY SCHEDULE ?

* what MODE should I set  ?  and what TEMP ? 

* what happens to my system outside of times programmed into the SCHEDULE  screens ?  is it ' business as usual' ?

I look forward to your thoughts. 

 



   
Quote
cathodeRay
 cathodeRay
(@cathoderay)
Famed Member Moderator
Joined: 4 years ago
Posts: 2952
22/03/2023 11:40 am  

@dealstriker - welcome to the forum, and to the crazy world of the Midea controller.

I have my controller set up to have the DHW heating on between 1300 and 1400 every day (no time of use tariff, so use the usually warmer part of the day), and use just the Schedule > Timer screen, just one (first) row ticked, start 1300 end 1400 mode DHW temp 50 (same as on front page/main screen).

This does seem to work, but when I tried a while back to do something to time the heating to be off overnight, it didn't work. But, as I say, the single row DHW timer does work.  

I think the Timer screen is just a global every day screen, the second Weekly Schedule screen is there to set different timings for different days of the week.  


Midea 14kW (for now...) ASHP heating both building and DHW


   
ReplyQuote
Forum Jump:
  Previous Topic
Next Topic  
Share:

SPONSORS

Join Us!

Installer Finder

Degrees of Separation

Latest Posts

SPONSORS

Members Online

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