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Derek M
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Derek M
@derek-m
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Illustrious Member
Joined: Mar 4, 2021
Last seen: Sep 19, 2024
Profile Activity
Topics: 7 / Replies: 4405
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Reply
RE: Noise/ Planning Expert

@jamespa Oh, you noticed I was being facetious as usual. I fully agree with you. If I was in a similar situation and had more money than I know w...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Noise/ Planning Expert

I suggest that we all go back to gas and oil boilers, so we can make as much noise as we like and no one will complain. 😋

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan Long Cycling and AA behaviour in one day.

Have you tried running with a lower WC curve setting, but using a room thermostat to start and stop the heat pump?

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Ecodan Long Cycling and AA behaviour in one day.

That is one of the burning questions, since we don't know precisely how the control algorithms function. I have been trying to apply my knowledge of c...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Ecodan Long Cycling and AA behaviour in one day.

That's quite interesting. It makes me wonder if AA has stored a copy of the original WC curve, which it may be adapting over time. What were the setti...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Ecodan Long Cycling and AA behaviour in one day.

Keeping room temperatures reasonably constant is much easier said than done. It is probably like driving a car, which has extremely slow response, suc...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan Long Cycling and AA behaviour in one day.

@kev-m Hi Kev, You could try different settings for the thermo diff., say +1C and -1C, then +2C and -2C etc. At each setting raise the desired roo...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Daikin Altherma Monobloc

Much of the information in the manual is about as clear as mud. I wonder if this setting [2-05] on page 62 of the attached manual is what you seek?

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Sorting out a Grant Aerona3 Install

Some photo's would be helpful. If your installer thinks it is acceptable for the controller to be located under some pipework and possibly not be co...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan Long Cycling and AA behaviour in one day.

I think that the increase in IAT may be due to the WC curve not being fully optimised. My understanding is that in AA mode the controller responds p...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan Long Cycling and AA behaviour in one day.

This is excellent data, and just goes to prove that a correctly optimised system can operate in an efficient and effective manner.

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan appears to be ignoring Temperature Compensation

If you have the Mitsubishi pre-plumbed hot water cylinder I do believe that this includes a Plate Heat Exchanger (PHE) which is used to separate the h...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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