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SUNandAIR
SUNandAIR
@sunandair
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Noble Member
Joined: Dec 30, 2022
Last seen: Jul 9, 2025
Profile Activity
Topics: 5 / Replies: 495
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RE: Optimising ecodan ASHP

This is exactly the same issue we had with our installation a year ago. We had the missing energy data. We also had a 3rd party thermostat which meant...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Icy cold weather, weather compensation and consumption

30th November was a bit cold we operated a setback to 16C and still got a TOPUP in the middle of the night Room temp is black line. Green is Outsi...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Do setbacks save energy without compromising comfort?

this mornings HP activity here concurs with harryup and cathoderay Regarding defrosting. the fan definitely stops so there is just the circulating p...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Flushing an ASHP system (and UFH) questions

Have you had the strainers and metal filters cleaned out? There is a sump on the isolation valve on the outdoor return pipe which has a steel strainer...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Do setbacks save energy without compromising comfort?

Hi Kev and Ray Our heating was on a low setback so it was inactive for heating purposes. This allowed us to see the auto-reheat for defrost purposes...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Flow temperature up and down like a yo-yo

Hi Greekgod I thought you might have known…. All heat pumps are made by the Greek goddess of Mischief, Delusion and Folly. Have you or your installe...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Ecodan Room Temperature Mode

Morgan, try this Mitsubishi video. It shows how to set a On off schedule and vary temperatures along the time line. Just remember that Auto adapt...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Do setbacks save energy without compromising comfort?

here is yesterday’s temp drop chart. I forgot to include And todays so far

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Do setbacks save energy without compromising comfort?

Not sure information this helps your modelling but here goes nothing: our house is empty and has been slowly cooling down since Saturday the initi...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Ecodan controller- one question and one observation

Yes we’ve noticed and have used a small mid point kink in the WC curve. Our reasoning for trying this is that we have a large expanse of glazing in th...

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 Kev. Have you had any results from new settings of temp differentials? i altered my wc curve and interval plus shortened temp differential. we ...

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

Thanks for your kind words. Operating at 18c should give you a good COP and, as you’re charts suggest, an even temp. I have found a useful temp sett...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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