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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: 4403
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RE: Ecodan Long Cycling and AA behaviour in one day.

I knocked up a modelling tool for your system today and it shows the following results based upon the data you supplied. The results would indicate ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Noise/ Planning Expert

@ericdo Out of interest, what kind of heating boilers do your neighbours have and how noisy are they?

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Ecodan ASHP not switching off?

I suspect that your heatmiser's are starting and stopping your heat pump, and that either heatmiser being on will request the heat pump to start, but ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Ecodan Long Cycling and AA behaviour in one day.

If you haven't already done so, I would suggest balancing your system.

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Ecodan Long Cycling and AA behaviour in one day.

@gotaashp It is a pity the chart doesn't include IAT and OAT.

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Ecodan Long Cycling and AA behaviour in one day.

Did your installer balance your system?

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Heat pumps and on/off working - starting to quantify it

Maximum electrical energy reduction would require setback to be performed during the lowest OAT, with slow recovery being carried out during the highe...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Heat pumps and on/off working - starting to quantify it

@newhouse87 As you say, 'no two homes are the same'. As CathodeRay will delight in saying 'you can model to your hearts content, but you cannot be...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Heat pumps and on/off working - starting to quantify it

Based upon modelling, and the Laws of Physics and Thermodynamics, reducing the Indoor Air Temperature (IAT) will indeed reduce heat loss, which in tur...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Ecodan Long Cycling and AA behaviour in one day.

Sorry about that, it is one of the pleasures of being old and decrepit. 🙁 I will do some calculation tomorrow.

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Ecodan Long Cycling and AA behaviour in one day.

@kev-m One thing I notice is that in milder temperatures my LWT doesn't vary much. Is that because the WC curve flattens, or the change in thermal...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Ecodan Long Cycling and AA behaviour in one day.

What I find surprising is that you need to run at such high LWT in mild weather conditions. What is your heat loss calculation and heat emitter capaci...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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