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Derek M
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Derek M
@derek-m
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Illustrious Member
Joined: Mar 4, 2021
Last seen: Sep 19, 2024
Profile Activity
Topics: 7 / Replies: 4405
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Reply
RE: Ecodan. How to run this efficiently with zero understanding.

@kev-m As it states it is a 'thermo diff', that is measured with relation to the calculated LWT, so as the calculated LWT goes up and down, the limi...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan. How to run this efficiently with zero understanding.

@gotaashp Well spotted, I must start reading the instructions. 🙄 Edit. So there must be other parameters which limit the starting and stopping ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan. How to run this efficiently with zero understanding.

Like you I would assume that the 'thermo diff adjust' would apply in all modes of operation. When one thinks about what is probably happening during...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Keystone COPs? I'm not getting the efficiencies I expected on my Ecodan.

Hi Kev, What is the setting of the 'Time Interval'? It would be interesting to see the same test with a longer time interval.

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan. How to run this efficiently with zero understanding.

It would be interesting to see the effect of increasing the 'Time Interval' from 10 minutes to 60 minutes.

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan. How to run this efficiently with zero understanding.

Good to hear that your system operation is improving. Thanks for the update, it is always good to get feedback. AA does appear to be the best soluti...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Questions & concerns about heat pumps

I cannot believe that a so called 'Engineer' would leave without confirming that the system was actually operating correctly. When I was a boy that wo...

3 years ago
Forum
Introductions, Forum Rules & Updates
Reply
RE: Keystone COPs? I'm not getting the efficiencies I expected on my Ecodan.

@cathoderay If we consider what is happening just in heat loss terms. If the calculated heat loss of the building is say 12kW, with an indoor temper...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Lobby the government for a realignment of electricity costs v gas

That is precisely what I have been saying for over the past year. The system should revert back to the previous model, where each generator had to bid...

3 years ago
Forum
Electricity, Tariffs, Monitoring & Providers
Reply
RE: Keystone COPs? I'm not getting the efficiencies I expected on my Ecodan.

When one thinks about the actual thermodynamics, without considering the comfort level, then reducing the indoor temperature overnight should reduce t...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 17kw Grant Aerona heat pump not performing

Looking at the first photo, how many pipes are connected to the volumiser? If there are more than two then it is more likely a buffer tank, which co...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan Controller Placement?

Check and set the WC curve as shown in the video below. Try initial settings of 50C LWT at -5C outside air temperature and 25C LWT at 20C outside air ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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