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heat-pump-newbie
@heat-pump-newbie
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Joined: Dec 11, 2021
Last seen: May 5, 2026
Topics: 11 / Replies: 159
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RE: Daikin Altherma 3M in Buckinghamshire

Hi @bridgetjohn You only need to specify the Eco and Comfort temperature once each on the schedule. The tank will heat up to Eco starting at 03:00 ...

4 years ago
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RE: Daikin Altherma 3M in Buckinghamshire

actually looking at Bridget's home screens there is a change in pressure: 1.5 in the morning then 1.4 in the afternoon of 13th

4 years ago
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RE: Daikin Altherma 3M in Buckinghamshire

Also Derek, my system kept losing pressure as a valve was not working inside the indoor unit. I could see the drop in pressure on the controller scree...

4 years ago
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RE: Daikin Altherma 3M in Buckinghamshire

Morning Bridget In the Tank menu you can set these hot water temps, Comfort and Eco (mine are 49 and 44). Then go to Tank > Schedule and set ...

4 years ago
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RE: Daikin Altherma 3M in Buckinghamshire

@hydros Is the grey cylinder in the photos at the beginning of this thread a buffer tank?

4 years ago
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RE: Daikin Altherma 3M in Buckinghamshire

@witchcraft Unbelievable !! And was it ?

4 years ago
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RE: Daikin Altherma 3M in Buckinghamshire

@derek-m It's crazy that simple things like those on the list weren't done, not in my case certainly. Filling out that table would have been a start...

4 years ago
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RE: Daikin Altherma 3M in Buckinghamshire

Hi - our hot water is on Schedule + reheat. The reheat setpoint is 40 deg and hysteresis is 10, and it only reheats occasionally. Still noisy... arg...

4 years ago
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RE: Daikin Altherma 3M in Buckinghamshire

Hi Bridget. It looks like your immersion (ie Booster Heater) has been used much more than it should have. The accepted procedure it to run a disinfe...

4 years ago
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RE: Weather compensation and air source heat pumps

@alec-morrow Are you familiar with Daikin Altherma 3 controllers ?

4 years ago
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RE: Daikin Altherma 3M in Buckinghamshire

Argh ! How frustrating ! You'll notice the change in temp of the radiators etc, but they should stay on for long periods so the rooms shouldn't cool d...

4 years ago
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RE: Daikin Altherma 3M in Buckinghamshire

@bridgetjohn Great ! The set point curve shows that the current radiator water temp (LWT) is still hot from before, looks like it's the full 60 deg as...

4 years ago
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