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davidnolan22
@davidnolan22
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Joined: Jan 15, 2025
Last seen: Jan 7, 2026
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Topics: 0 / Replies: 136
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RE: Newbie: utterly confused with my Mitsubishi Zubadan air source heat pump running on 55C set flow temperature

@sandman1600 It’s tricky, if you run it in the 30s, it will cycle a lot. If you run it in the 40s, it will cost a bit more to run and you will have...

10 months 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

I think you’ve got a piped header , not a buffer. The called for temps are now low and you are cycling the machine. The fact that it’s cycling at te...

10 months 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

@sandman1600 Some good advice from James. On those charts there is good news and bad news. The good news it it only took 70Kw to heat your house...

10 months 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

@sandman1600 there is no chance your unit used 200 kw in a day….. what does your octopus app say?

10 months 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

Can you do it for one day. That Cop is a problem yes, the pump can’t deliver the heat at that low temp. The emitters / secondary flow is not big eno...

10 months 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 Yep, in Mel cloud you’ll see energy consumed and delivered. What was yesterday?

10 months 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

@sandman1600 heat loss is heat loss. Yours is not anywhere near 14. My house is 263m2, built 150 years ago and I’ve the 11.2 ecodan. Insulation is ...

10 months 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

Those flow rates are very low for the 14kw unit. Youre currently only needing 3.5Kw to keep your house warm. One problem you may have is the emitte...

10 months 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

can you take a picture of the outdoor unit. Has it got 2 fans?

10 months 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

And the graphs above, one is a defrost. The other wobbly ones are unit at temp, but can’t give the heat out quite fast enough so adjusts up and down ...

10 months 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

Most installers I think want to do a good job. im struggling to getting head around a 14kw unit for a smallish bungalow that I can see insulation ha...

10 months 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

@sandman1600 does it have a finishing screed over it? do you know how to get the flow rate through the machine from the FT6 control panel? do y...

10 months ago
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Air Source Heat Pumps (ASHPs)
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