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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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RE: Heat pump delta T too low - 2c

Why do you require a flow rate of 30 litres per minute? Having a DeltaT of only 2C would indicate that the flow rate is too high for the present heat ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: My ASHP is running out of hot water

If the water pump cable is long enough, you could just fit a standard mains 3 pin plug that you can use in a 240v socket. Does your immersion heater...

3 years ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: Pure Drive Battery Storage System

Transparent would be better able to answer your question, but the District Network Operator (DNO) normal limits the permitted export to the grid to 3....

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

@kev-m You may be correct Kev, I did not look closely at the DeltaT value, since the origin problem was cycling. Without me having to look through...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: My ASHP is running out of hot water

I would suggest that you open the valve and run the pump for maybe 10 minutes, preferably when you carry out the legionella cycle.

3 years ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: Pure Drive Battery Storage System

The formula is quite simple, Watts = Volts x Amps. In the case of batteries, the voltage is dependent upon how many are connected in series. A typic...

3 years ago
Forum
Solar Photovoltaic (PV)
Reply
RE: My ASHP is running out of hot water

@curlykatie I hope that you will be providing your plumber and electrician with training certificates, once you have completed their training. 😎

3 years ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: Ecodan. How to run this efficiently with zero understanding.

@davew I suspect that you may have to contact Mitsubishi Technical Help and ask them why you are getting such low COP values.

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Connecting to Midea MSmartHome using a PC

I assume that the number is represented by 4 bytes in Hexadecimal format, with decimal 8008 appearing as Hex 00001f48. It may therefore be possible th...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Samsung ASHP scheduling help

You should be able to read the data, once you figure out what data is what. As far as being able to write data to the controller is concerned, I am no...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: My ASHP is running out of hot water

I'm not saying that there is a pressure reducing valve installed, but if there is then it should be located somewhere on the cold water feed pipe goin...

3 years ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: Samsung ASHP scheduling help

I am not familiar with HA, being more experienced with industrial control systems, but always interested to learn about different systems. I assume ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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