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iancalderbank
@iancalderbank
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Joined: Oct 17, 2022
Last seen: Jan 14, 2025
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Topics: 0 / Replies: 643
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RE: Low flow rate on Samsung Gen6 12KW heat pump

so a small loss per hour on an unused HW tank is inevitable, no tank insulation is perfect of course, but 0.5C is a bit high, I'm nearer 0.2C. Have a ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Low flow rate on Samsung Gen6 12KW heat pump

@riponowl couple of questions about the data from the passivliving screenshots, to me they seem puzzling in a several places. they show your flow ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Low flow rate on Samsung Gen6 12KW heat pump

sorry mike, I disagree if the system is split primary/secondary, with a buffer or LLH, then you have to have two pumps, it can't work without, thats...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Low flow rate on Samsung Gen6 12KW heat pump

just did a quick google: is passiving something that does online monitoring of your system via data from the heat meter? I'd be interested to see any ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Low flow rate on Samsung Gen6 12KW heat pump

@riponowl heacol (an installer on this board) used to recommend Bellimo or ESBE when I asked him exactly this question. I went with ESBE. I think his ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Low flow rate on Samsung Gen6 12KW heat pump

@riponowl COP of 3.5 is ok as a long term, worth keeping an eye on what it does day to day if your system has that capability (Sorry I don't know wha...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Low flow rate on Samsung Gen6 12KW heat pump

yes you have to do this. there are plenty of online tables to show how the output of the same radiator drops given different DT. most mfr's don't qu...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Low flow rate on Samsung Gen6 12KW heat pump

the flow rate dropping when you upped the ABV pressure indicates that the ABV was letting flow through, proving an alternate route. I don't know of a ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: moving from ASHP to Gas Combi

not quite sure why you are asking this on this board as clearly a retrograde step, but anyway in the spirit of helpfulness: if your house is already p...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Radiators don't receive hot water

so there is hot water in the system being generated by the ASHP and its going somewhere, but not to your radiators.. this is a normal plumbing and hea...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Low flow rate on Samsung Gen6 12KW heat pump

@riponowl just set it to 0.6, the highest value. you don't need to "tune" it, you are not trying to balance a TRV boiler system which is what they wer...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Low flow rate on Samsung Gen6 12KW heat pump

its really hard to prove this one, because with an ASHP the difference between Flow and Return T is not a lot, not always easy to feel, and the behavi...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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