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Gary
@gary
Member
Honorable Member
2137 kWhs
Joined: Feb 8, 2023
Last seen: Jan 12, 2025
Profile Activity
Topics: 1 / Replies: 229
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RE: Mitsubishi Ecodan ASHP general set-up and efficiency

As I said in a previous post your max duration is set to 90 mins you need to change it to at least as long as your schedule if you want it to heat for...

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

The only suggestion I have is there is an eco and std setting for HW heating, if it’s on eco change it to std it will make the HP worker harder for t...

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

So is a pump running constantly that is linked to the Heatmiser? if so, set it to be off when the hot water is heating see if that makes a differenc...

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

So it will only run for 90 mins before shutting off and that currently isn’t long enough to reach your set temp In the HW schedule on the FTC when i...

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

@ngillam that all looks normal it’s just defrosting

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

What does this mean do you have hot water being pumped round a circuit?

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

check what the HW pump is set to on the cylinder it should have 3 positions it should be on 3 which is the highest setting

7 hours ago
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Air Source Heat Pumps (ASHPs)
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RE: The Definitive Guide to Weather Compensation and Curves for Air Source Heat Pumps

@rhh2348 There are 3 adjustments in the compensation curve menu, the left one adjusts where the colder OAT flow temps start, the middle one adjusts w...

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

Flow and return are fine, what isn't is the rate at which it is changing. If I look at my HW run last night to get from 37C to 42C flow mine took 5 ...

2 days ago
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Air Source Heat Pumps (ASHPs)
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RE: hum/whine from Wilo circulation pump

@grumpidoc I would still go into the menu when its running and check what the pump speed is set to and what the flow rate is, then you will have that ...

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

@ngillam No way to control defrost cycle, but that isn't your issue it only increased 5C in 30 mins before the defrost started that isn't normal, its ...

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

@ngillam Mine performed the same as normal hw took an hour to get to temp which is typical, hw shouldn't struggle to get to temp so something isn't...

3 days ago
Forum
Air Source Heat Pumps (ASHPs)
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