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Kev M
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Kev M
@kev-m
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Joined: Mar 5, 2021
Last seen: Jan 8, 2025
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Topics: 10 / Replies: 1266
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RE: Keystone COPs? I'm not getting the efficiencies I expected on my Ecodan.

@derek-m it was 10 minutes but I've since changed it to 30. This was yesterday (at 30). Not a lot of difference although less stops.

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Keystone COPs? I'm not getting the efficiencies I expected on my Ecodan.

It's hard to say. Some people think it's better. It's a little complicated for me as I have 2 zones and they heat and cool at different times. It's...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Ecodan Controller Placement?

Just try room temp mode without looking at the dip switches. If it's not set to auto adapt I think it'll just act like a dumb thermostat like it's doi...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Ecodan. How to run this efficiently with zero understanding.

Yup that's clear enough. It's got me wondering what the upper and lower value actually does? It's not deviation from the set WC values because when ...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Ecodan Controller Placement?

Should be fine. You need to make sure that the Room Sensor setting is set to "Main RC". It's on the menu under Initial Settings (the little cog whee...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Ecodan. How to run this efficiently with zero understanding.

@gotaashp, I assumed the 'thermo diff adjust' applied to fixed and curve. The manual isn't very well written but I'm not sure applying a flow temp ...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Keystone COPs? I'm not getting the efficiencies I expected on my Ecodan.

Have a look at this. The two graphs are my house after a setback, one on Mitsubishi AA, one on WC. Both have similar (but not identical) ambient temp...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Say hello and introduce yourself

@timatheronwood Hi and welcome. Hopefully you are getting things sorted. Was running the auxiliary heaters at lower temperatures part of the design...

2 years ago
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Introductions, Forum Rules & Updates
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RE: Keystone COPs? I'm not getting the efficiencies I expected on my Ecodan.

Having a setback definitely makes my COP worse on auto adapt because it bumps up the flow temp to heat up the house in the morning. When I'm on overn...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Heat Pump Truth or Myth#2 - Cycling uses a lot of power and ruins your COP

@chickenbig thanks for this, very interesting and (I think) broadly confirms what I said, but with a bit more rigour and credibility!

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Mitsubishi Ecodan - Hot Water Settings

I think you can turn your immersion off with this setting but I don't know why it's on in the first place. My Ecodan heats to 55 deg easily in all we...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Ecodan Melcloud temperature control with compensation curve

The temp sensor is inside the main FTC control panel (the one you use to change settings). You can move that panel depending on how long the cable is...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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