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JamesPa
JamesPa
@jamespa
Moderator
Illustrious Member
Joined: Apr 3, 2023
Last seen: Aug 17, 2026
Topics: 27 / Replies: 5245
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RE: Heat pump's integral circulator pump

I have recently been pondering, while trying to help another participant in the forum, why some heat pumps bother to modulate the water pump to mainta...

1 year ago
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RE: advice on excessive shortcycling and overall efficiency

As you say should be straightforward, good luck with the work!

1 year ago
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RE: advice on excessive shortcycling and overall efficiency

I forgot you had a LLH and secondary pump. Is the service technician who visited proposing to remove it or leave it and add a buffer tank/volumiser i...

1 year ago
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RE: advice on excessive shortcycling and overall efficiency

Yes, just blank off the unused ports. As you have fancoils I would put the volumiser in the flow, not the return, it might just soften the experienc...

1 year ago
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RE: Fujitsu Waterstage WOYG160LJL Air Source Heat Pump

No problem if you want to ask more questions but without a doubt leaving these things from time to time is a good idea. only by doing so do you get t...

1 year ago
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RE: Heat pump's integral circulator pump

Why does it matter if the flow changes a bit, so long as its sufficient to carry the required energy? Mine certainly changes from time to time. No n...

1 year ago
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RE: Share Your Experiences with Heat Pump Manufacturer Support

Not really, and thinking of them this way can mislead. Its also misleading to think of the heat pump sending a fixed amount of heat. It sends hot wa...

1 year ago
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RE: Share Your Experiences with Heat Pump Manufacturer Support

That's actually two priorities, lwt and flow temperature are the same thing. If the radiators demand more heat, the only way it can maintain ft i...

1 year ago
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