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Crimson
@crimson
Member
Reputable Member
1076 kWhs
Joined: Jan 16, 2024
Last seen: Dec 9, 2024
Topics: 4 / Replies: 210
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RE: Grant 13kW Aerona3 - issues getting zones to temp

Thanks Mike, the clunking seems often (sorry describing a sound that I have no reference too is hard to pick a term, metallic knocking/banging/clunkin...

1 year ago
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RE: Grant 13kW Aerona3 - issues getting zones to temp

I thought going forward I would indicate on a segment of the floor plan the downstairs zone, what it comprises of, where rads are, what rads they are ...

1 year ago
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RE: Grant 13kW Aerona3 - issues getting zones to temp

Thanks @heacol Next step is now the builder is getting the plumbers and architect and myself to meet on site to discuss all this. This is the orig...

1 year ago
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RE: Grant 13kW Aerona3 - issues getting zones to temp

Thanks @heacol Just asked the specialist on thoughts of removing the LLH as a first step to see affect. His response was that "they're recommended by...

1 year ago
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RE: Grant 13kW Aerona3 - issues getting zones to temp

Yeah, far as the heat specialist's recommendation goes it's get larger emitters to reduce flow temp and increase efficiency. The ASHP cycling is pre...

1 year ago
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RE: Grant 13kW Aerona3 - issues getting zones to temp

Attached 6 probes now to largest rad in Living 2 – temps whilst ASHP runs (think caught just at a peak of a cycle, Grant panel said 39C in, I think ou...

1 year ago
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RE: Grant 13kW Aerona3 - issues getting zones to temp

It’s 10C outside according to Grant panel. 36.4C coming in according to my probe. 38C according to Grant panel (using the hold down return, see valu...

1 year ago
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RE: Grant 13kW Aerona3 - issues getting zones to temp

@derek-m Will see if can do some surface temps of that rad when ASHP is running at some point today. Photo attached of LLH whilst ASHP running th...

1 year ago
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RE: Grant 13kW Aerona3 - issues getting zones to temp

sorry Derek, think I keep replying then not seeing all your posts. Same with Toodles. water pump is after LLH before the zones yes. heat s...

1 year ago
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RE: Grant 13kW Aerona3 - issues getting zones to temp

So the smaller rad in living 2: 30.6C in / 27.3c out - 3.3C diff larger rad in Living 2 26.6C in / 29.4C out - wasn’t expecting that. This ...

1 year ago
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RE: Grant 13kW Aerona3 - issues getting zones to temp

@derek-m 3 zone valves. Only one water pump in plant room, set to speed 2/3. Apologies don’t have a diagram. 1 zone valve manually on for upstair...

1 year ago
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