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Terry Nolan
@haggistrap
Member
Eminent Member
109 kWhs
Joined: Jan 29, 2024
Last seen: Apr 12, 2024
Profile Activity
Topics: 0 / Replies: 15
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RE: Problems with Daikin 18 kW High Temp ASHP

Just curious on COP. Mine is sitting around 3.3 -3.5 with outside temp 8 to 10c. Don’t want to get in to mine is better than yours but I think that’...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Problems with Daikin 18 kW High Temp ASHP

Update on my Daikin HP. so, apparently a number of these Daikin HT ASHPs were sent to the UK with insufficient refrigerant gas. Today, My Daikin en...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Problems with Daikin 18 kW High Temp ASHP

@hughf totally agree and I’m likely to do this in the summer. however, Daikin installer and Daikin specs of my HP tell me this is not required for t...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Problems with Daikin 18 kW High Temp ASHP

@bramshot thanks for the reply and PM my HT can operate up to 70c for LWT, according to the below manufacturer info. In the real world, in Scotl...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Problems with Daikin 18 kW High Temp ASHP

@derek-m thanks again! we agree! The outside temp hasn’t got above 5c, hence why I have set it to the absolute lowest min flow temp at 55c over win...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Problems with Daikin 18 kW High Temp ASHP

@derek-m thanks. however the house needs a min 55c flow temp to effectively heat it. I’ve done this to lower the temp from higher temperatures, to ...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Problems with Daikin 18 kW High Temp ASHP

It’s a high temp heat pump. Marketed and sold as a retro fit for gas boiler, designed to run up to 70c it’s set to fixed 55c temp.

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Problems with Daikin 18 kW High Temp ASHP

Some graphs if anyone can suggest why my HP seems to not maintain a constant “leaving water” temp more constantly. In the examples below there are th...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Refrigerant in Daikin Altherma HHT taking hours to heatup

Not got the answer but sounds like it could be similar to one of my posts. Have a look? My HT Daikin freezes far too often when cold, then struggles...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Battery system for cheaper heat pump running

I did my own g99, region SW Scotland so Scottish power. My understanding, if you stay under 16amp and can only export from one inverter, g98 is fine....

11 months ago
Forum
Energy Storage
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RE: Problems with Daikin 18 kW High Temp ASHP

@derek-m I get the principal of how HPs operate. But these HT ones specifically state they run up to 70c. my house on the OP’s are not set up to op...

11 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Battery system for cheaper heat pump running

I have a solax system, I actually have x6 of the 5.8kw batteries. does it work, yes, very well. I charge at night I’m on eon drive, fixed tariff....

11 months ago
Forum
Energy Storage
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