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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: 4403
AllTopicsReplies
Reply
RE: Mitsubishi Ecodan & Raspberry Pi automations

@ajdunlop I don't have an Ecodan, so I have to make assumptions as to what function the various setting parameters perform. Flow temp, range *10 -...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP at cold temperatures

It is all to do with the amount of stored heat energy and its location. A litre of water contains approximately 3500 times more energy than a litre of...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP at cold temperatures

I doubt that having a PHE will make much if any difference to the defrost cycle. The temperature change at the flow and return temperature sensors w...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Mitsubishi Ecodan & Raspberry Pi automations

Hi Kev, Yes, quite easily. One resistor would be connected directly across the two terminals. Then one of the wires, red or white, would be disconne...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP at cold temperatures

The primary water flow does not change direction, it is the refrigerant gas flow inside the heat pump which changes direction.

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat Pumps - An Expensive Folly?

Rather than selling your clients gas heaters, you should first direct them to this forum, unless your post is some form of advertisement? I fully ag...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Mitsubishi Ecodan & Raspberry Pi automations

@kev-m Hi Kev, I have just finished calculating the resistance values that could be used to vary the response of the Thermistor TH1, which is used...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Mitsubishi Ecodan & Raspberry Pi automations

Hi Kev, mjr and other Ecodan owners, I have been doing some investigation as to why the Ecodan Auto Adaptation would appear to not always perform as...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP at cold temperatures

Not if you have a GSHP, which I believe is often the case in the Scandinavian countries.

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Dimplex SI TE 30 GSHP has stopped working

I would suggest switching off the power to the whole system for about 1 hour, to ensure that all capacitors are fully discharged. Then power the syste...

4 years ago
Forum
Ground Source Heat Pump (GSHPs)
Reply
RE: Army Housing- Ecodan with UFH efficiency?

I'm glad to hear you have joined the 'bedtime reading' team.

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Army Housing- Ecodan with UFH efficiency?

@calzo21 I have attached a copy of the Ecodan data that Kev was kind enough to supply. It is over 400 pages long, so makes excellent bedtime reading...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
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