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jonathans
@jonathans
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Eminent Member
Joined: Dec 31, 2021
Last seen: Oct 16, 2024
Profile Activity
Topics: 1 / Replies: 11
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RE: 12kW Vaillant aroTHERM plus in the Scottish Borders: please help cure my COP envy

@jwilliams89 We're quite satisfied with the performance we get from expanded and haven't seen any reason to tweak things further. It's settled on a HC...

11 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: 12kW Vaillant aroTHERM plus in the Scottish Borders: please help cure my COP envy

@colin All I'm doing to monitor COP is taking daily readings from the sensoCOMFORT for power consumed and environmental yield, then doing the maths ...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 12kW Vaillant aroTHERM plus in the Scottish Borders: please help cure my COP envy

Hi folks, Here are some charts showing how things have progressed since the end of November (the data immediately after my mid-November commissionin...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 12kW Vaillant aroTHERM plus in the Scottish Borders: please help cure my COP envy

Hi @derek-m I didn't know that about the cold weather leading to hotter radiators; now that you say it, that makes sense. Our controller is wire...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 12kW Vaillant aroTHERM plus in the Scottish Borders: please help cure my COP envy

I have another question, this time about TRVs. I've seen many of the more technically minded posters saying that the TRVs should be left fully open, a...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 12kW Vaillant aroTHERM plus in the Scottish Borders: please help cure my COP envy

I didn't wait til the end of the week and switched over to expanded mode + adaptive heat curve last Tuesday. I'm not wholly sure what to make of the d...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 12kW Vaillant aroTHERM plus in the Scottish Borders: please help cure my COP envy

Thanks both, I appreciate your input. I think I'm going to leave things as I have them til the end of the week, for data collection, and then try swit...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 12kW Vaillant aroTHERM plus in the Scottish Borders: please help cure my COP envy

I agree about the adaptive heat curve using the expanded room temp, and that's what I'm working toward. Since the manual asks that the suitable heat c...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: 12kW Vaillant aroTHERM plus in the Scottish Borders: please help cure my COP envy

Hi @jaspera -- thanks for that info. It looks like we have different controllers (I have a VRC720F) and in the manual Vaillant have removed the text y...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP Cycling On/Off - Is it an issue?

@derek-m Thanks very much -- I think I understand this now, as well as the source of my confusion. My Vaillant 12kW operates only w/the Vaillant Sen...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP Cycling On/Off - Is it an issue?

@derek-m, I have a question about this statement. I think I understand your later explanation of how premature shutoff happens (link) but I don't unde...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Topic
12kW Vaillant aroTHERM plus in the Scottish Borders: please help cure my COP envy
4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Replies: 23
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