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ngillam
@ngillam
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Joined: May 13, 2024
Last seen: Jan 26, 2026
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Topics: 2 / Replies: 69
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RE: Mitsubishi Ecodan ASHP general set-up and efficiency

@harriup Morning, yes, my pump speed is 3, flow rate of 9 off the top of my head. does that seem OK? My issue is the fact we've struggled to reach 4...

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

@gary Agreed, installer needs to look. I did up the operation time to match schedule but it's still struggling to reach temp and it still switched to...

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

@gary It's already on Std , it was one of the things I checked earlier, I've been watching it for the last coupe of hours, it's just paused the DHW he...

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

@gary The HW schedule has kicked in for evening showers, despite the timer for pump set to 24hrs the pump has auto switched off for the hot water hea...

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

@gary Will give it a try, thanks Gary.

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

@gary Yes the heatmiser is set for 24 hrs running. The reason being we never really know when HW might be needed at the taps, especially the weekends...

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

@gary I have two of these in the control room, one looks to be UFH manifold side and the other DHW. I have it set 24hr because if it isn't then ou...

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

@gary Yep, it's on 3. Here are the last two hours of info: Every hour it does this, this is the first winter we've gone through since he...

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

@gary Weird one, checked with partner, she wasn't using the hot water during this period!

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

@harriup @gary I really do need some help with this one. It seems my HW never gets up to 47 target now due to defrost cycle running every hour. It g...

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

@gary That's a good observation on emptying the tank!! I wasn't at home but will check with the other half if she was up earlier than planned. Once ...

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

@gary DHW was set to heat 1hr prior to this time and has been fine until this morning, it only needs to go from 30 ish to 47 in that hour, it seems to...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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