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Crimson
@crimson
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1076 kWhs
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

On another note (realise I’m post blitzing but trying to comprehend as much as possible). if currently today I’ve run the system with no weather...

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 again for all this. I’ve relayed it to architect and also queried things in the Calc doc as some rooms structure dates etc are wrong and a numb...

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

This was the battle I had I think in June last year, they were just useless and I asked if we could get other plumbers but was reassured (incorrectly ...

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

hi Derek, I think the issue was what they suggested in these calcs couldn’t fit and they started going on about adding 2 tall rads with shorter ones (...

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

hi Derek those are the ones installed. So essentially they were talking about D20 when really should have been talking about D15? And weren’t referrin...

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

Hi Derek, I have the to hand, but not posting here as has address details, happy to DM you directly if useful? I believe the calcs were done based o...

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 @heacol, I can only keep pursuing the builders/plumbers on this project, I see you're based in Cumbria, don't suppose you'd ever venture out to...

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 Derek, I'll mention this to plumbers if they come Thursday, I can only see one flow rate indicator in the plant room on the return (28l/s - hea...

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 Derek will give that a go today. I played with the TRVs a bit last night and temps seem to have changed, but going to confirm with more p...

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

Stem didn’t feel like I could push it down manually. Will try again

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

Somehow didn’t occur to me in all this. The utility room being UFR with its own heatmiser panel. Upping the temp on that panel invoked the UFR zone (v...

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

hi @derek-m , so completely confess very new to all this still. Removed the TRV head. In terms of the stem, how should that move? Up and down? for a...

1 year ago
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Air Source Heat Pumps (ASHPs)
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