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Joined: Jan 20, 2022
Last seen: Sep 19, 2025
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Topics: 16 / Replies: 2470
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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?

3 years ago
Forum
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...

3 years ago
Forum
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...

3 years ago
Forum
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...

3 years ago
Forum
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. ...

3 years ago
Forum
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...

3 years ago
Forum
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...

3 years ago
Forum
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,...

3 years ago
Forum
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...

3 years ago
Forum
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...

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

Yes of course I'll share what results I get.But as I said, I've only just imported these modules. They're still sat on the workbench, not connected to...

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

If you want to place a few temperature or voltage sensors around your heat-pump, you could consider using an analogue acquisition module with a Modbus...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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