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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: 17kw Grant Aerona heat pump not performing

The interesting words are in the last sentence as detailed below. The low loss header is just one way, but hopefully it provides engineers with an i...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Mitsubishi Ecodan - Hot Water Settings

I would suggest that you check that the valve or valves are changing over from central heating to DHW heating. Edit. I suppose that the other thin...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan. How to run this efficiently with zero understanding.

It is the Compressor which moves the refrigerant gas around the system. I have seen a number of engineering drawings showing a water pump located insi...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan. How to run this efficiently with zero understanding.

I think that this could be a training video, with the heat pump set up indoors, not too far from the controller. One way to check if the outdoor uni...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Does our solar generation sound about right?

Without knowing where CT2 is connected I'm afraid that I cannot say. I would suggest that yo contact your installer.

3 years ago
Forum
Solar Photovoltaic (PV)
Reply
RE: Does our solar generation sound about right?

It suspect that it means that Current Transformer number 2 (CT2) is installed the wrong way around. Is it a newly installed system?

3 years ago
Forum
Solar Photovoltaic (PV)
Reply
RE: Ecodan. How to run this efficiently with zero understanding.

What happens if you run room temp mode with the Auto Adapt dip switch 5-2 set to inactive? I haven't tried it nor do I know if it's even possible. ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan. How to run this efficiently with zero understanding.

In the first place the pump should not have been mounted with the motor and electronics below the water filled pump section, unless the water in your ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan. How to run this efficiently with zero understanding.

It's just good business. Confuse the customer with 'smoke and mirrors', so they have to pay for a visit from the expensive Service Engineer. Simples. ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan. How to run this efficiently with zero understanding.

which also made me wonder if my system is configured from Room Temp or AA. I don't know if there is anyway of telling? [/quote] Room Temperatu...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan. How to run this efficiently with zero understanding.

You little devil, you've been reading the instructions again. Shame on you. 😋

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan. How to run this efficiently with zero understanding.

You will not get cycling in DHW mode because the heat pump is working harder, so is operating within its specified control envelope. Cycling occurs wh...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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