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Uk_pete_2000
@uk_pete_2000
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Estimable Member
Joined: Nov 11, 2024
Last seen: May 15, 2025
Profile Activity
Topics: 1 / Replies: 82
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RE: Grant Aerona3 - Home Assistant control via Modbus

Correct and I still stick by it as this is a discussion on automation and getting control of the HP to respond to circumstances. In the end all a WC...

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Grant Aerona3 - Home Assistant control via Modbus

@johnmo Not sure, I think it was a couple of times. On checking traced it back to return temp matching outgoing temp. It then cycles the water unti...

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Grant Aerona3 - Home Assistant control via Modbus

@jamespa There is a lag in response no matter which you chose, depending on the mass of the heat sink and ours is large. There would also be a buil...

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Grant Aerona3 - Home Assistant control via Modbus

@jamespa Yes the basic principle is correct, but by using that mirror and knowledge you know that if the temp is falling / gaining then x amount...

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Grant Aerona3 - Home Assistant control via Modbus

@johnmo Having never had a gas boiler, I can not commit on that. All I understand about them is that they run high temp to warm up a house, within ...

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Grant Aerona3 - Home Assistant control via Modbus

@jamespa Yes there are a lot of people running WC and there are a lot of people who make changes to those WC curves during the winter as the house...

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Grant Aerona3 - Home Assistant control via Modbus

Hate to burst people bubbles, but WC will never match the house heat loss. The only way to do that is by using the internal house temp and adding / re...

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Grant Aerona3 - Home Assistant control via Modbus

@johnmo Yes, we have about 300m2 of UFH, over 3 manifolds. One manifold is then split to deal with radiators upstairs. Our return temp is around ...

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Grant Aerona3 - Home Assistant control via Modbus

@johnmo This is not too much about micro-management of the HP, but about getting more from it. I have a Grant 13kw, two to three times larger tha...

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Grant Aerona3 - Home Assistant control via Modbus

@johnmo "Why not use the original manufacturer controller (Chofu) which is hidden away in a cupboard" If you do a search on Gibhub or Internet, s...

3 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Grant Aerona fine tuning advice needed

@stopbar We have a 13kw R32 Grant and found running 30/-5 & 25/15 works (its a very efficient house). Most of the time I just run it off flow...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Grant Aerona3 - Home Assistant control via Modbus

Hi, Had a look over the information / video and though I can just about follow it and may be able to take a stab at it, I think its a little too muc...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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