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Crimson
@crimson
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Joined: Jan 16, 2024
Last seen: Dec 9, 2024
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Topics: 4 / Replies: 210
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RE: Grant 13kW Aerona3 - issues getting zones to temp

Hi Toodles, don't think any outside. The plant room is all lagged. And the ASHP has a pretty heavy duty underground insulated set (I think further b...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Grant 13kW Aerona3 - issues getting zones to temp

From photos I have of when the project was in progress looks like the pipe work is in the ceilings, plastic, then runs down the walls are metal. Thos...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Grant 13kW Aerona3 - issues getting zones to temp

Thanks Toodles.Here's probably a stupid question. I notice: (Grant panel) LWT on Grant panel (I think this never shows .5C rounded to nearest 1)...

1 year ago
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Air Source Heat Pumps (ASHPs)
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RE: Grant 13kW Aerona3 - issues getting zones to temp

Thanks Toodles, I hope so for sure. That 1.5C max uplift to LWT puts about 1C extra into the system at current temps, and really felt that upstairs. ...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Grant 13kW Aerona3 - issues getting zones to temp

I think it’s safe to say the rads downstairs appear to be the issue. Keeping upstairs on but reducing lock shields down does seem to have reduced cy...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Grant 13kW Aerona3 - issues getting zones to temp

thanks Derek. I’ll try and push for the LLH to volumiser as well as simplification of zones. The DHW cycle heating upstairs was an oversight of the he...

1 year ago
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Air Source Heat Pumps (ASHPs)
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RE: Grant 13kW Aerona3 - issues getting zones to temp

New learning. Concept of a heat dump is a good one to get longer cycles and side benefit of heat from towel rads upstairs throughout the day. Howeve...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Grant 13kW Aerona3 - issues getting zones to temp

Thanks Toodles! I'll sort this now, as I can see my office temp is climbing (currently 21.3C) and suspect that's because the upper floor is warming ...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Grant 13kW Aerona3 - issues getting zones to temp

Thanks @iancalderbank, I can give that a go, perhaps all upstairs rooms bar my office as a first attempt. Just a note - if TRVs were all down to 1/2 ...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Grant 13kW Aerona3 - issues getting zones to temp

(apologies for post blitzing yet again - posting as find things etc) Architect responded, heat calc was last one sent over however architect pointed...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Grant 13kW Aerona3 - issues getting zones to temp

This AM I’ve had to put the ASHP on the weather curve as it’s simply too warm upstairs with the ASHP running at 42C fixed (seems to be get 1.5V-2C low...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Grant 13kW Aerona3 - issues getting zones to temp

Thanks Derek, I’ll see if can find an hour to do this tomorrow. With the cycling it might be hard to get this however, perhaps recordings every 10 min...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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