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HughF
@hughf
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Noble Member
Joined: May 2, 2022
Last seen: Jun 27, 2025
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Topics: 5 / Replies: 484
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RE: How to best configure my Mitsubishi heat pump to work effectively?

Typical ecodan plumbing schematic is attached. Very simple, no buffer, no LLH

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: How to best configure my Mitsubishi heat pump to work effectively?

I’ve got a Cool Energy unit actually, I’ve just read a lot of the Samsung manuals over the last week.

3 years ago
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Air Source Heat Pumps (ASHPs)
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RE: How to best configure my Mitsubishi heat pump to work effectively?

@derek-m One way around it is to use a PWM controlled pump on the secondary circuit too, piggybacked off the ASHP control boards PWM signal (provid...

3 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Samsung 12kw efficient running. The little tweaks.

@grahamh I know you were very heavily involved with getting the Samsung units popularised over here, could you shed some technical light (for the engi...

3 years ago
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Air Source Heat Pumps (ASHPs)
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RE: 12kW Samsung gen 6 short cycling

@mike-h Ah yes, good old freedom. I’d trust the instructions from midsummer wholesale personally. I know that GH was always getting 911 errors (low fl...

3 years ago
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Air Source Heat Pumps (ASHPs)
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RE: 12kw Samsung gen 6. Short cycling

The white one is the expansion vessel for the domestic hot water (from the unvented cylinder) and the grey one is the expansion vessel for the heating...

3 years ago
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Air Source Heat Pumps (ASHPs)
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RE: 12kw Samsung gen 6. Short cycling

It doesn't have a buffer, no... Which set of instructions say that the samsung needs a buffer?

3 years ago
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Air Source Heat Pumps (ASHPs)
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RE: 12kw Samsung gen 6. Short cycling

Glyn has his 5kW Samsung wired/plumbed up with full monitoring, the data can be viewed at: Single grundfos PWM pump, a heatpump cylinder with a 1...

3 years ago
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Air Source Heat Pumps (ASHPs)
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RE: UK heat pump adoption – at the bottom

Swings and roundabouts…. It was over 50% carbon neutral a week or so ago with offshore wind and nuclear doing the heavy lifting. I’m indirectly in the...

3 years ago
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Air Source Heat Pumps (ASHPs)
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RE: 12kw Samsung gen 6. Short cycling

3 years ago
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Air Source Heat Pumps (ASHPs)
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RE: 12kw Samsung gen 6. Short cycling

I have a lot of time for Glyn Hudson over on YouTube who has just DIYd his 5kW Samsung install and has documented it with a decent video. From the com...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: 12kw Samsung gen 6. Short cycling

I’d go with the one from the Jule installation manual, as it’s a Jule cylinder/heatpump package. Now that we’ve seen some more photo’s you can clearly...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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