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Derek M
@derek-m
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Joined: Mar 4, 2021
Last seen: Sep 19, 2024
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Topics: 7 / Replies: 4403
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RE: Numerous issues – 11kW Daikin Altherma 3

What are the model numbers of your indoor and outdoor units? Sorry, I should have explained better. When the heat pump pauses operation, the compres...

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

@newhouse87 If the attached manual is for your equipment then please let me know. Under section 3.2 on page 4 it mentions ET. Please confirm tha...

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

Whilst I fully agree with your statements. The problem is that no one is policing the installers, to ensure that they are providing all the required i...

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

The Unitherm guy will have been referring to one of the UFH valves being stuck, since the BUH doesn't have any valves. Do you have a wiring diagram ...

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

If the heat pump is running, then there must be a call for heat. Are you still operating your heating system with the thermostats set 1C above desired...

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

Correct me if I am wrong, but I think that your previous post stated that the water pump was running, but not the compressor, and that you were using ...

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

Just to confirm. It would appear from the photo's that your system is a 'split' rather than a 'mono', so no water going through the outdoor unit hence...

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

@newhouse87 There is nothing shown on the displays supplied that would appear to be using lots of power. What was the power consumption at the time ...

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

@newhouse87 Please post all information, since it would appear the BUH's were not the cause.

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

@newhouse87 There will be a plate heat exchanger inside the outdoor unit, but that is between the refrigerant gas and the water. You could have anot...

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

Unless you have a heat exchanger in your system, it is the same water that flows around the heating system, through the heat pump and through the UFH ...

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

@newhouse87 No, I didn't mean set the ET to 10C overnight, I meant to try the test now before you go to bed. Initiate a setback so that the heat pum...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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