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gotaashp
@gotaashp
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Estimable Member
441 kWhs
Joined: Jan 29, 2023
Last seen: Nov 19, 2023
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Topics: 1 / Replies: 78
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RE: Keystone COPs? I'm not getting the efficiencies I expected on my Ecodan.

I'm not sure who said what either lol. I have edit the above post, but just to highlight that +-5 setting can be turned off. If you feel it's gettin...

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

I think I have a firm handle on the +-5 setting. As you say it's not easy to know what the target LWT is at any point in time as it's changing all the...

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

I think we're saying the same thing. Where there is a linear decrease in flow and return temps like that, that says to me that target temp has been hi...

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

I think we've now established that changing the Pump Speed via the controller may only be applicable with a pre installed setup. You may have to chang...

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

@morgan Just an observation on the three charts you provided. I looks to me like your system was off between 12:38-14:16. Also, if you remove Tank ...

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

Mine does not show the smaller current temp number on the main controller either, but it's definitely running in AA mode. I had assumed that it was so...

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

Yeah, I may query this with them. Although I also note from the manual 🙃 that Method 1 'should be used as a guide' so even getting the values set corr...

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

That's exactly what I think I'm observing. 'Believeable' COP values in cold conditions (2.3-2.5), nothing over 3 in milder conditions.

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

That's useful, thanks. I've located the sensors on mine; they look to be in good positions, have two cable ties, with pipe lagging over them. I can't ...

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

Ah-ha that makes a lot of sense. Ours isn't pre-plumbed and like @si-fillo we don't have a large number of rads with long runs - so likely the install...

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

@si-fillo You can drill down further on those energy figures, but they only go as granular as monthly. For daily you'll have to do as @SUNandAIR sug...

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

Am I right in thinking it's the PWM technology that has the ability to control flow rates on the pumps? I can see mine have this capability but it's n...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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