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Sandman1600

@sandman1600

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Joined: Mar 13, 2025
Last seen: Oct 16, 2025

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

We’ve been relying on people doing heat loss evaluations to size the heat pump and two different ones came back with similar suggestions so we were ho...

8 months ago

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Air Source Heat Pumps (ASHPs)

RE: Newbie: utterly confused with my Mitsubishi Zubadan air source heat pump running on 55C set flow temperature

@jamespa Thanks very much. I appreciate you’re probably sick of newbies coming along and asking questions but I’m genuinely trying to educate myself...

8 months ago

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Air Source Heat Pumps (ASHPs)

RE: Newbie: utterly confused with my Mitsubishi Zubadan air source heat pump running on 55C set flow temperature

@bontwoody Thanks. I really do appreciate the advice from everyone. It’s all helping get my head around the new normal of a heat pump.

8 months ago

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Air Source Heat Pumps (ASHPs)

RE: Newbie: utterly confused with my Mitsubishi Zubadan air source heat pump running on 55C set flow temperature

The Polypipe UFH system is set up with two manifolds (one on each level of the house) and a thermostat in every room.I’ve attached a photo of the mani...

8 months ago

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Air Source Heat Pumps (ASHPs)

RE: Newbie: utterly confused with my Mitsubishi Zubadan air source heat pump running on 55C set flow temperature

@bontwoody That’s great. Thank you.And is it normal that when the weather compensation is activated, I can’t make any manual adjustments to the flow t...

8 months ago

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Air Source Heat Pumps (ASHPs)

RE: Newbie: utterly confused with my Mitsubishi Zubadan air source heat pump running on 55C set flow temperature

Thank you. I’d literally just found that video as I couldn’t figure out what was meant by “Control Logic”. I tried reducing the flow temperature to 35...

8 months ago

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Air Source Heat Pumps (ASHPs)

RE: Newbie: utterly confused with my Mitsubishi Zubadan air source heat pump running on 55C set flow temperature

I get the impression that they’re just trying to replicate a conventional boiler for people. Which is utterly nuts but I’m guessing it makes life easi...

8 months ago

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Air Source Heat Pumps (ASHPs)

RE: Newbie: utterly confused with my Mitsubishi Zubadan air source heat pump running on 55C set flow temperature

We’re in a 130 m2 split level bungalow so that’s really encouraging. We’re not exactly hermetically sealed but we’re pretty airtight and insulated so ...

8 months ago

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Air Source Heat Pumps (ASHPs)

RE: Newbie: utterly confused with my Mitsubishi Zubadan air source heat pump running on 55C set flow temperature

Thanks for the extensive info here. Can I just make sure I understand this… so the idea is to ramp up the thermostats so that there’s a constant call...

8 months ago

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Air Source Heat Pumps (ASHPs)

RE: Newbie: utterly confused with my Mitsubishi Zubadan air source heat pump running on 55C set flow temperature

@tim441 Thanks for that. The Weather Compensation settings are definitely something I need to get my head round. The installers told us to ignore that...

8 months ago

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Air Source Heat Pumps (ASHPs)

RE: Newbie: utterly confused with my Mitsubishi Zubadan air source heat pump running on 55C set flow temperature

@bontwoody thanks very much for that. Weather compensation is something we really need too look at. The installers told us not to bother with it. ...

8 months ago

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Air Source Heat Pumps (ASHPs)

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Newbie: utterly confused with my Mitsubishi Zubadan air source heat pump running on 55C set flow temperature

8 months ago

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