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SUNandAIR
SUNandAIR
@sunandair
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Noble Member
Joined: Dec 30, 2022
Last seen: Dec 19, 2025
Profile Activity
Topics: 5 / Replies: 503
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RE: Keystone COPs? I'm not getting the efficiencies I expected on my Ecodan.

At one level it made sense to me that the lines should disappear since they are not just temperature readings.... they also represent a snapshot of en...

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

gotaASHP our plumbing engineer was excellent his pipe work and layout was a work of art. But the electrical side of things was a different story. I gu...

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

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

Isn’t it madness? I don’t recall “self commissioning” being written in to the contract when I bought this expensive piece of kit? Still, this group...

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

“Operation settings” adjustments offer some hopeful results. I’ve been trying different settings and got our best COP results so far. Control inter...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Heat pump delta T too low - 2c

I don’t see it as the only way.... how about lowering the ambitious set flow temperature? So that it matches the radiant capabilities of an inefficien...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Heat pump delta T too low - 2c

@benseb I think I read some earlier posts of your installation. The biggest problem I recall was the long line of rads off a 15mm pipe you also have s...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Heat pump delta T too low - 2c

[/quote] The heat loss from your home is dependent upon the temperature difference between inside and outside. This can vary quite considerably thro...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Ecodan circulation pump

No, that’s a slightly different slant on what I said. My point was that when you’ve resolved any problems you may have with your system you may find ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Ecodan circulation pump

Hi @adamba thanks for the information you’ve sent. Regarding the Freeze Stat Function.You can adjust this down to a lower temperature without affe...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Ecodan circulation pump

@adamba hi Since you’ve got glycol you could set your frost-protect down to zero if it’s not already set to that temperature *But please let us kno...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan circulation pump

@adamba If you are familiar with the buttons on your FTC main controller you can check what your ecodan freeze function is set at? This is a quick che...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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