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Vaillant water pressure gauge vs Analogue gauge

 
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Air Source Heat Pumps (ASHPs)
Last Post by jeegnesh 4 months ago
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 jeegnesh
(@jeegnesh)
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Topic starter 08/04/2025 1:04 pm  

@adamk - Yes they get very close when HP is off within 0.1 or 0.2 once the HP goes on there a difference of 0.4-0.6

13.6kw Solar, 27kw Battery, 10kw Heat Pump and EV Car


   
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 AdamK
(@adamk)
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Joined: 6 months ago
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08/04/2025 1:50 pm  

yeah sounds like its pumping against something. is the whole circuit UFH?


   
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 jeegnesh
(@jeegnesh)
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Topic starter 08/04/2025 1:58 pm  

@adamk - Its a huge system, ground floor is predominantly UFH around 100sqm, rest is rads I think 13 of them

13.6kw Solar, 27kw Battery, 10kw Heat Pump and EV Car


   
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 AdamK
(@adamk)
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Joined: 6 months ago
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09/04/2025 9:33 am  

Posted by: @jeegnesh
↑

@adamk - Its a huge system, ground floor is predominantly UFH around 100sqm, rest is rads I think 13 of them

just wondering if the UFH is creating some back pressure and the rad locksheilds are closed down too much so when the pump kicks in its pumping against too much resistance.

 


   
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 jeegnesh
(@jeegnesh)
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Topic starter 09/04/2025 10:04 am  

@adamk not sure I want to mess with the lockshields I assume that would mess with the balancing. 

have someone coming next Wednesday to take a look at all the issues. 

13.6kw Solar, 27kw Battery, 10kw Heat Pump and EV Car


   
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