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SUNandAIR
SUNandAIR
@sunandair
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Joined: Dec 30, 2022
Last seen: Jun 17, 2025
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Topics: 5 / Replies: 490
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RE: Ecodan Long Cycling and AA behaviour in one day.

@derek-m hi Derek, The points you raise are all very valid and ones we’ve been becoming familiar with. We are all too familiar with understand...

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

I don’t think your first assumption is having an effect on the end of the day. But I can confirm your second point. The radiators were fully heated at...

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

Answers to the quiz: Low flow rate vs high flow rate. The 11 o’clock graph is operating at 19lpm and the 12 o’clock and 15 o’clock graphs were opera...

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

Thats interesting… I haven’t seen such super high temps. I’ve never thought of containing the upper temperature limit. I have mine set to 53c because ...

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

hi @gotaashp I was interested in your 24 hour room temp graph which shows how AUTO ADAPT tries to anticipate and over run set temperatures. Its i...

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

Hi Walker, Thanks for your thoughts. The good news about the rating of Ecodan is that the output range of the compressor is quite a bit higher than...

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

Here is a challenge for you Derek: One of these graphs is recorded during a flow rate of 19lpm and 2 of the graphs are recorded at a flow rate of 14...

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

Thanks that sounds interesting Kev Meanwhile, I’ve changed to WC curve it is set at 31c at today’s outside temperature of 8c. So I’ve added +2 to b...

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

hi, I’m pretty sure it’s no coincidence. Earlier in the month I was getting 20 minutes cycling but, like you, I also had the period set to 20 minutes....

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

Operating in AA. We have been getting reasonable ‘on’ time yesterday since we extended the ‘Room Temp. control’ interval. This is the interval period ...

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

**Correction ** the last paragraph should read: ‘In the knowledge that our radiator capacity at lower temperatures may restrict the HP operation t...

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

I think I was part of this discussion too… I did some calcs on our system and the radiator capacity at different flow temperatures. And we think a 3...

2 years ago
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Air Source Heat Pumps (ASHPs)
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