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Josephiah
Josephiah
@josephiah
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Joined: Oct 29, 2023
Last seen: Jun 24, 2024
Profile Activity
Topics: 2 / Replies: 32
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RE: Vaillant AroTherm controls issue

Well, it seems to be fixed. The controls are making proper sense for the first time. Maybe now I can have another go at those heat curve and setback e...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Vaillant AroTherm controls issue - solved!

This evening I am allowing myself a smug/wry smile, as after 3 weeks, 2 installer visits and various attempts to describe the problem to Valiant, I be...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Vaillant AroTherm controls issue

@drew-pa On a side note: do you know what the button on the radio receiver box (with the "two rotating arrows" symbol) does? I can find no mention o...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Vaillant AroTherm controls issue

@drew-pa Yes, they seem to be. The downstairs master unit can make any changes (including the installer settings). The upstairs remote unit can only d...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Vaillant AroTherm controls issue

@drew-pa Just the two sensoComfort units (main controller in downstairs zone, remote unit in upstairs zone), plus the external sensor for weather comp...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Vaillant AroTherm controls issue

Thanks, understood. It's running on WC and modulates the temperature sensibly. There plenty of capacity in the system, and the building warms fine d...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Vaillant AroTherm controls issue

Update: After installer performed full factory reset, we tried first night with constant temp - worked fine. Then I applied overnight setbacks 1°C...

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

Agree with just about everything you've written there, but I think you may be missing a point (although you may well have covered this elsewhere) abou...

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

Agreed - my analysis is over-simplistic so far - we should expect to reduce consumption purely because the average temperature differential to outside...

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

Although, roughly speaking, the overshoot hill (above the average line) fits the size of the of the preceding valley (exactly, in fact, over the cours...

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

Interesting to see your findings, @cathoderay. From what I can see in my own n=1 study (this house (which is large and fairly well insulated, but wit...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Vaillant AroTherm controls issue

Thanks for the suggestions, both. @gary Yes, it behaves as you would expect for the 17°C setback - switches off for a couple of hours, then when it ...

2 years ago
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Air Source Heat Pumps (ASHPs)
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