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JamesPa
JamesPa
@jamespa
Moderator
Illustrious Member
Joined: Apr 3, 2023
Last seen: Oct 8, 2026
Topics: 27 / Replies: 5468
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RE: Need help maximising COP of 3.5kW Valiant Aerotherm heat pump

Yes it does, but you can disable it. Sensocomfort-Settings-Installer Level-Installation Configuration-Circuit 1-Room temp mod. Set to inactive to ru...

8 months ago
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RE: Hoped for improvements not being realised on my Mitsubishi heat pump

Check them. Filters, particularly the fine mesh filter if you have one (it may be inside the case) block up quickly. Mine blocked up to the point th...

8 months ago
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RE: Hoped for improvements not being realised on my Mitsubishi heat pump

Thanks for the info. Volumiser configuration should be OK, a little concerned the rads are original it suggests some may be undersized. OK, difficu...

8 months ago
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RE: If a heat pump can only heat DHW to 50C then what?

As you now have a Heliotherm engineer on the case I wont comment further. As @mars says this is high end stuff, the suppliers need to be made to work...

8 months ago
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RE: Need help maximising COP of 3.5kW Valiant Aerotherm heat pump

OK. Well in case you haven't already the first thing to do is to disable all room influence and turn the WC curve down as far as you can until the ho...

8 months ago
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RE: Same Heat Pump Size, Different Sized Homes: Would One Be More Efficient?

The larger house might turn out slightly more efficient due to increased system volume, but I'm basically on the same page as @majordennisbloodnok.

8 months ago
Reply
RE: Need help maximising COP of 3.5kW Valiant Aerotherm heat pump

@davidb I'm presuming you are already running open loop 24*7, no external controls and have turned the weather curve down as far as possible consis...

8 months ago
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RE: Hoped for improvements not being realised on my Mitsubishi heat pump

@f1p OK noted Without further information about the system I cant really comment with any certainty, all I can do is cite generic statements ...

8 months ago
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RE: Hoped for improvements not being realised on my Mitsubishi heat pump

I have some suspicions (16kW for 340 sq m is not 'energy efficient!') but before I make any concrete suggestions can you please clear some matters up ...

8 months ago
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RE: Advice on potential HW Cylinder size

They wont have that volume, neither will most others, and the installers interpretation of what Midea say is unconventional to say the least (ie I hav...

8 months ago
Reply
RE: Hoped for improvements not being realised

When you say converting the buffer tank, I presume to a volumiser? Did you remove the secondary pump? What happens if run in pure weather compensa...

8 months ago
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