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Derek M
@derek-m
Member
Illustrious Member
Joined: Mar 4, 2021
Last seen: Sep 19, 2024
Topics: 7 / Replies: 4405
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RE: How are Ecodan CoP quotes from MelCloud setups?

I have just been looking at the Ecodan manual for a different reason and remembered your post. So taking your figures of 630kWh last year, that gives ...

1 year ago
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RE: Secondary pump speed - how much slower should it be?

Thank you for the very kind offer, but it was my feeble attempt at a joke. If my wife and I were to visit Portugal in the not too distant future, whic...

1 year ago
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RE: Secondary pump speed - how much slower should it be?

@davidalgarve Oh, I forgot to add, that we will all need to come and stay with you for a couple of weeks this Summer, to check that any modification...

1 year ago
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RE: Grant 13kW Aerona3 - issues getting zones to temp

Having measuring equipment can be highly useful, though sometimes the results have to be interpreted carefully. Measuring the temperature of a pipe do...

1 year ago
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RE: Grant 13kW Aerona3 - issues getting zones to temp

The bottom right temperature is probably high because the primary flowrate is now much higher than necessary. You could try dropping the pump speed. ...

1 year ago
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RE: Heat pump size advice – is 16kW overkill for this property?

I suppose your neighbour could conveniently forget to pay the bill until the warmer weather comes along and the systems operation can be assessed. I...

1 year ago
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RE: Grant 13kW Aerona3 - issues getting zones to temp

I'm pleased to hear that your problems appear to have been resolved. So the plumber was correct, the problem was the LLH. Was he the one who installed...

1 year ago
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RE: Secondary pump speed - how much slower should it be?

It is always difficult knowing what to do for the best, particularly when the advice being provided may differ slightly. It is equally difficult try...

1 year ago
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RE: Grant 13kW Aerona3 - issues getting zones to temp

So it would appear the the moron, sorry plumber, who originally installed the buffer tank, must have been absent from the training course when the tra...

1 year ago
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RE: Grant 13kW Aerona3 - issues getting zones to temp

Did you try the test that I suggested, stopping the secondary water pump and seeing how long it takes for the heat pump return temperature to increase...

1 year ago
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RE: Grant 13kW Aerona3 - issues getting zones to temp

Yes that appears to be a bypass valve. Check the the temperature of the pipes either side to try to ascertain if there is flow going through it. It lo...

1 year ago
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