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AshRolls
@ashrolls
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Joined: May 27, 2025
Last seen: Feb 4, 2026
Profile Activity
Topics: 1 / Replies: 7
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RE: Flow rate discrepancy between ASHP and manifold

Ok, I think I have got to the bottom of the problem... the installers have installed the wrong flow sensor also in a poor position. - Wrong sensor i...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Flow rate discrepancy between ASHP and manifold

@bornagain I had considered that, but have air release valves at all the highpoints in the system piping and have run the air purging function on the ...

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Flow rate discrepancy between ASHP and manifold

Completely open loop. No buffer or mixing of any kind.  

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Flow rate discrepancy between ASHP and manifold

Hello, I thought I'd update this thread now that the install is completed and I have a few months of colder weather and observations. Plus a few more ...

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Flow rate discrepancy between ASHP and manifold

That's useful thanks, I hadn't seen that table before. Since I'm not having a buffer I don't know how useful the 20.2 figure is. If I'm interpreting t...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Flow rate discrepancy between ASHP and manifold

This is where I'm still a bit confused, If the minimum flow of the heat pump is 17l/min and the maximum flow I can put through the UFH is 19l/min sure...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Flow rate discrepancy between ASHP and manifold

Thanks. I'm installing the 11.2kw ecodan because that is what the install company calculated. I'm pretty sure that the full 11.2kw will only be needed...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Topic
Flow rate discrepancy between ASHP and manifold
1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Replies: 18
Views: 3098
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