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SUNandAIR
SUNandAIR
@sunandair
Member
Noble Member
Joined: Dec 30, 2022
Last seen: Nov 2, 2025
Topics: 5 / Replies: 499
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RE: Ecodan. How to run this efficiently with zero understanding.

@si-fillo what pumps do you have brand model. are you changing them using the ftc controller or are you doing it manually?

3 years ago
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RE: Ecodan. How to run this efficiently with zero understanding.

@gotaashp and @Davew is it true that you don’t get cycling when doing the DHW re-heat and this is generally at a higher set temperature?

3 years ago
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RE: Keystone COPs? I'm not getting the efficiencies I expected on my Ecodan.

@cathoderay sounds like a useful trial. Also I’ve noticed reference in this thread to a ‘Boost’ in the morning whereas we have been doing a rise in...

3 years ago
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RE: Keystone COPs? I'm not getting the efficiencies I expected on my Ecodan.

@scrchngwsl so would it be fair to say while the HP is modulating to a reducing temperature, eg. to the set back temperature of say 16c down from 21c ...

3 years ago
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RE: Keystone COPs? I'm not getting the efficiencies I expected on my Ecodan.

@scrchngwsl well spotted you’re absolutely right. I must have read .17 as bigger than .4 So possibly a lower setback, may also favour a Good COP? t...

3 years ago
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RE: Keystone COPs? I'm not getting the efficiencies I expected on my Ecodan.

@mjr Put like that we do expect a lot…. - A constant room temperature when all the other parameters are constantly changing 😂😂👍

3 years ago
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RE: Keystone COPs? I'm not getting the efficiencies I expected on my Ecodan.

Or is it “Good COP bad COP”? there’s something of a deception when looking at COP alone IMO. when we first powered up our heat pump we were using...

3 years ago
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RE: Ecodan Controller Placement?

I got my installer to relocate my controller and replace my 3rd party (on off) room stat with the wireless Mitsubishi which is now set up as the room ...

3 years ago
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RE: Mitsubishi Ecodan - Hot Water Settings

I can sense your frustration with the equipment and are looking for a quick solution but these issues may be connected in some way. So it would hel...

3 years ago
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RE: Ecodan. How to run this efficiently with zero understanding.

Not sure but it seems to me that your primary return water isn’t rising much at all. Your DT appears to be getting wider and wider as the flow water r...

3 years ago
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RE: Ecodan. How to run this efficiently with zero understanding.

Thanks for the explanation @derek-m that’s really useful 👍🏼

3 years ago
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