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rhh2348
@rhh2348
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Reputable Member
Joined: Feb 2, 2024
Last seen: May 9, 2025
Profile Activity
Topics: 9 / Replies: 89
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Topic
Moving from two zone to single (open) / how to select a circulation pump - advice please
7 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Replies: 17
Views: 1123
Reply
RE: Mitsubishi Ecodon stuck on immersion symbol

If the legionella is unticked I doubt it'll come on as the installer states. In your first photo it's not on timer - it's running continously. ...

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Mitsubishi Ecodon stuck on immersion symbol

Do you know your immersion/booster actually works as it should? Check your legionella prevention settings to see when it's next due to happen and se...

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Mitsubishi Ecodon stuck on immersion symbol

BTW your SD 'memory' card is dark, showing 'abnormal operation'

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Mitsubishi Ecodon stuck on immersion symbol

@ak2024 - that symbol is immersion or boost, not legionella - see: Also I assume your probe is mid-to-lower in your cylinder so it will only show ...

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan - flow rates, sensors, settings

What were your drivers for replacing the pumps and removing the LLH, other than the 'usual' better design + increased efficiencies? That's prett...

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan - flow rates, sensors, settings

Are you able to share your pumps and cylinder details?

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan - flow rates, sensors, settings

I may very well come back to you for some detail on that pump at some point in the near future 🙂 I was referring to this: OK, that may ...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan - flow rates, sensors, settings

I am assuming you are aware of the FTC(6, I think) pump speed settings that allow you to set a different circulating pump speed for space heating to t...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan - flow rates, sensors, settings

[quote][/quote] Having read up on the matter since, the Ecodans do not do this - they run at one speed, be that which is set internally on the pump ...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Determining correct flow rate for a heat pump

Assume so too. I think my pipes are at 150mm centres, which I understand is common for screeded underfloor - but I watched the HG video and (mainly!...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Determining correct flow rate?

Feels like this was way out after some of the replies, however are there any rules of thumb on such matters - for example, given UFH in an area of Xm2...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
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