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Sandman1600
@sandman1600
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Joined: Mar 13, 2025
Last seen: Oct 16, 2025
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Topics: 1 / Replies: 71
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RE: Newbie: utterly confused with my Mitsubishi Zubadan air source heat pump running on 55C set flow temperature

@jamespa Thanks again for all the information. I've read everything and it's very helpful.I've lowered the DHW temperature to 48 which after one day h...

1 year ago
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Air Source Heat Pumps (ASHPs)
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RE: Newbie: utterly confused with my Mitsubishi Zubadan air source heat pump running on 55C set flow temperature

@jamespa Thanks again. That helps clarify what we need to be looking at.I've been monitoring it over the last few days and COP has been: 24/3: 3.17 ...

1 year ago
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Air Source Heat Pumps (ASHPs)
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RE: Newbie: utterly confused with my Mitsubishi Zubadan air source heat pump running on 55C set flow temperature

Thanks. I figured it didn’t look great. I can’t see a graph that includes compressor data I’ve attached the most detail graph it produces. Not sure...

1 year ago
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Air Source Heat Pumps (ASHPs)
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RE: Newbie: utterly confused with my Mitsubishi Zubadan air source heat pump running on 55C set flow temperature

Thanks again @jamespa @davidnolan22 Now we’ve raised it with them I’m just trying to see what it does over the next few days before I refer back to t...

1 year ago
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Air Source Heat Pumps (ASHPs)
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RE: Newbie: utterly confused with my Mitsubishi Zubadan air source heat pump running on 55C set flow temperature

With the DT, I think we're seeing drops below 3 occasionally but I think that's mainly while its cycling which I guess makes sense? Ah okay. I'm obv...

1 year ago
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Air Source Heat Pumps (ASHPs)
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RE: Newbie: utterly confused with my Mitsubishi Zubadan air source heat pump running on 55C set flow temperature

One other thing I noticed while thumbing through the settings is that the heat pump speed for heating and DHW is set to max. Is that normal?

1 year ago
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Air Source Heat Pumps (ASHPs)
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RE: Newbie: utterly confused with my Mitsubishi Zubadan air source heat pump running on 55C set flow temperature

@davidnolan22 Precisely. The heat loss report is gospel and that’s all they’ll work to.One thing he said which sort of makes sense is that the next mo...

1 year ago
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Air Source Heat Pumps (ASHPs)
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RE: Newbie: utterly confused with my Mitsubishi Zubadan air source heat pump running on 55C set flow temperature

So, an update... one of the team leaders from the installers visited today and checked out how we'd been set up.There's a water pipe outside that's go...

1 year ago
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Air Source Heat Pumps (ASHPs)
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RE: Newbie: utterly confused with my Mitsubishi Zubadan air source heat pump running on 55C set flow temperature

@jamespa Thanks for the information. I will ask for the justification but I'm guessing it's a kind of "easy" package along with the heat pump. Saves t...

1 year ago
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Air Source Heat Pumps (ASHPs)
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RE: Newbie: utterly confused with my Mitsubishi Zubadan air source heat pump running on 55C set flow temperature

@davidnolan22 Thanks. It looks like this is some kind of Mitsubishi "collab" so I think arguing that this is wrong be tough. We'd never have known any...

1 year ago
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Air Source Heat Pumps (ASHPs)
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RE: Newbie: utterly confused with my Mitsubishi Zubadan air source heat pump running on 55C set flow temperature

Apparently its the 210ECYLPPSS model which I think might be a bespoke/modified version of their Climacyl range. It's here: Looks like a 50 litre i...

1 year ago
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Air Source Heat Pumps (ASHPs)
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RE: Newbie: utterly confused with my Mitsubishi Zubadan air source heat pump running on 55C set flow temperature

@jamespa That's good to hear about the vents. Gives me some faith that they knew what they were doing.I'll update as and when I progress this and fing...

1 year ago
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Air Source Heat Pumps (ASHPs)
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