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HarriUp
@harriup
Member
Reputable Member
1073 kWhs
Joined: Nov 25, 2021
Last seen: Feb 23, 2025
Profile Activity
Topics: 1 / Replies: 106
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Reply
RE: Can you work an ASHP too hard?

@simonwhiteley Have you come across this in your travels? It seems relevant to your situation.

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Can you work an ASHP too hard?

The real world is the variation of people's houses – if you have looked at heatpumpmoitor.org you'll have seen how different the usage patterns are. T...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Can you work an ASHP too hard?

My understanding, albeit slight, of heat pumps in scandinavian countries is that they use booster heaters when the temperature gets really low. So the...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Mitsubishi Ecodan ASHP general set-up and efficiency

Is this a pump issue? What jumps out at me on the chart at the the time of the defrost cycle is that the return drops dramatically first, and pulls th...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: hum/whine from Wilo circulation pump

Although the primary pump installed on my EcoDan is not the same make as yours I had a similar issue - mostly solved by reducing the flow rate. The hi...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: non-Mitsubishi owners - how much control do you have over your ASHP "freeze stat" function?

I wonder if this related to the Holiday setting in the controller menu which sets a room temperature below which the heating will come on with a modes...

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Hot water temperatures

The hot water is taken from the top of the tank, to be replaced by cold water at the bottom of the tank with a minimising of disturbance. (I am presum...

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Mitsubishi Ecodan ASHP general set-up and efficiency

I wouldn't place efficiency at the top of the list – you have to get to an understanding of how your house works themally and how the heating system w...

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ECODAN ASHP General Set-up and efficiency.

Using Auto Adapt/Room Temperature mode, where the FTC decides on operational temperatures and running periods, requires an internal temperature measur...

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Ecodan ASHP - How to optimise my set up?

It will affect system performance as those are the main temperatures the controller will use to switch the outside unit on and off – definitely a case...

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ECODAN ASHP General Set-up and efficiency.

Going back to your -39 issue, this a glitch in the software running on the FTC, which is slightly surprising given that yours is a new installation, b...

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Ecodan - flow rates, sensors, settings

The manual is quite explicit that it is set for the flow meter supplied ... and the Sika sensor says it only measures up to 80l/min - but if you look ...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
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