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Joined: Jan 20, 2022
Last seen: Jul 11, 2025
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Topics: 16 / Replies: 2412
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RE: Numerous issues – 11kW Daikin Altherma 3

OK; so whatever level of educational establishment you work in, it must be embarrassingly obvious that there simply isn't enough knowledge and underst...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Numerous issues – 11kW Daikin Altherma 3

I don't think that provides a fair assessment of the issues being faced by @newhouse87 1: On this site the LWT is currently over 48°C, not 35°C 2:...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Numerous issues – 11kW Daikin Altherma 3

Ah... so are you telling us that you're a self-builder, but that you sub-contracted the design and installation of the heating system to a 3rd-party?

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Numerous issues – 11kW Daikin Altherma 3

Yes, tiles are good conductors. 🙂 Do you know if the concrete pads have a thermal break (of insulation) in the rooms where they abut an external wa...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Numerous issues – 11kW Daikin Altherma 3

I'm not sure that the floor area of the room is the most significant factor. The mass of the concrete pad, the floor surface which covers it and the...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Numerous issues – 11kW Daikin Altherma 3

It's not common to have any manual adjustment on an UFH manifold like that. Don't start unscrewing red rings unless you are completely certain of wh...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Numerous issues – 11kW Daikin Altherma 3

Thanks. So I can see the white mains-powered thermal actuators on the lower (flow) level of the manifolds, and the flow-gauges on the return side. ...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Numerous issues – 11kW Daikin Altherma 3

Yes, it will certainly interfere! Every room requires its own stat/timer. If your manifold allows the flow-rate to be changed, then by all means d...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Numerous issues – 11kW Daikin Altherma 3

Since the actuators are effectively 'digital', the bathroom will take its heat first because the resistance is lower. But, of course, its thermostat...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Connecting Home Assistant to a Midea Heat Pump

On a related note, I'm currently installing several BMS units from different manufacturers. The Chinese ones have optional colour LCD touch screens,...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Connecting Home Assistant to a Midea Heat Pump

It depends in which clearance-sale you trawl for bargains. 😉 I paid £11 because the wholesaler was going to be stocking a rival to Alpha-wire in fu...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Connecting Home Assistant to a Midea Heat Pump

Yes. If you've only got one RS485 port on the end of the cable, then you won't need a terminating resistor. I'm currently experimenting using a scre...

2 years ago
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Air Source Heat Pumps (ASHPs)
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