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SUNandAIR

@sunandair

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Noble Member

Joined: Dec 30, 2022
Last seen: Dec 19, 2025

Topics: 5 / Replies: 503

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

@si-fillo if you find that the pump is already at the slowest pump speed you may be able to slow it further if you slowly adjust the isolation valves…...

3 years ago

Forum

Air Source Heat Pumps (ASHPs)

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

Crossing messages again😂 Do you have access to the service menus? If so try adjusting the pump speed to speed one then do an enquiry on the servic...

3 years ago

Forum

Air Source Heat Pumps (ASHPs)

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

@si-fillo I would say you definitely need access to the pump speeds. Is it just a single pump system you have? We have a primary flow pump which also ...

3 years ago

Forum

Air Source Heat Pumps (ASHPs)

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

@si-fillo it’s possible you have a bespoke installation where the pumps may be off the shelf and don’t respond to the ftc controls. We have 2 indep...

3 years ago

Forum

Air Source Heat Pumps (ASHPs)

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

Forum

Air Source Heat Pumps (ASHPs)

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

Forum

Air Source Heat Pumps (ASHPs)

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

😂😂😂

3 years ago

Forum

Air Source Heat Pumps (ASHPs)

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

Forum

Air Source Heat Pumps (ASHPs)

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

Forum

Air Source Heat Pumps (ASHPs)

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

Forum

Air Source Heat Pumps (ASHPs)

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

Forum

Air Source Heat Pumps (ASHPs)

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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