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Gary
@gary
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Prominent Member
Joined: Feb 8, 2023
Last seen: Jul 4, 2025
Profile Activity
Topics: 2 / Replies: 348
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RE: Mitsubishi Ecodan ASHP general set-up and efficiency

Maybe work out what brand they are and google the instructions

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Mitsubishi Ecodan ASHP general set-up and efficiency

Yes they should just screw off and on they are just normal threads usually

7 months ago
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Air Source Heat Pumps (ASHPs)
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RE: Mitsubishi Ecodan ASHP general set-up and efficiency

I think you need extra kit for that. if you are successful in removing the actuator then you might as well remove all of them and get the system com...

7 months ago
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Air Source Heat Pumps (ASHPs)
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RE: Mitsubishi Ecodan ASHP general set-up and efficiency

Get a spanner on it, what’s the worst that can happen your heating doesn’t currently work in those areas so you aren’t going to be worse off.

7 months ago
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Air Source Heat Pumps (ASHPs)
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RE: What is a considered a decent weather curve?

@crimson turn the lockshields down upstairs to reduce the flow to the rads so they output less heat rather than use the TRV's.

7 months ago
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Air Source Heat Pumps (ASHPs)
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RE: What is a considered a decent weather curve?

To me it looks like your system is pretty much meeting the design. You are having to increase the temp above the design as you have a setback for X...

7 months ago
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Air Source Heat Pumps (ASHPs)
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RE: Mitsubishi Ecodan ASHP general set-up and efficiency

@ngillam

7 months ago
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Air Source Heat Pumps (ASHPs)
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RE: Mitsubishi Ecodan ASHP general set-up and efficiency

@ngillam unscrew them and take them off they hold the circuit closed when they are off the circuit is open

7 months ago
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Air Source Heat Pumps (ASHPs)
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RE: Mitsubishi Ecodan ASHP general set-up and efficiency

@ngillam do they not unscrew mine do they are only hand tight but yours maybe different.

7 months ago
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Air Source Heat Pumps (ASHPs)
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RE: Mitsubishi Ecodan ASHP general set-up and efficiency

All you can really do is try lower flow rate as long as it’s only cycling once an hour that’s ok. Only other way to reduce cycling is to ensure the ...

7 months ago
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Air Source Heat Pumps (ASHPs)
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RE: Mitsubishi Ecodan ASHP general set-up and efficiency

@ngillam If the far bedroom is turning on for 12 mins then off for 48mins then the wiring centre isn't getting a signal this is a fail safe that allow...

7 months ago
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Air Source Heat Pumps (ASHPs)
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RE: Heat Pump SCOPs – The Truth Might Not Be What You Think

I have tried my 8.5kw Ecodan at various pump speeds its currently at pump speed 2 that gives 14L/min, the recommended flow rate for 8.5 Ecodan is 15.4...

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
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