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Samsung ASHP power cycling

 
Air Source Heat Pumps (ASHPs)
Last Post by Blaine_t 2 years ago
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 Blaine_t
(@blaine_t)
New Member Member
Joined: 2 years ago
Posts: 2
Topic starter 06/05/2024 11:51 am   [#1528]

I attach examples of power cycling of my Samsung ASHP gen 6 12kw . I know it does this when it de-ices in freezing temperatures, but recently the temperatures haven’t dropped below 7° and I didn’t see this last year, does anyone know what might be causing this?



   
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bontwoody
 bontwoody
(@bontwoody)
Noble Member Contributor
Joined: 4 years ago
Posts: 1055
06/05/2024 1:25 pm  

@blaine_t 

I cant see the examples, but I suspect its probably one of two things, either the heat pump cant modulate down low enough for the houses needs or the radiators in the house cant dump enough heat to keep the heat pump running continuously.

I notice you have a 12kW heat pump, what was the calculated heat loss for your property? Its not unknown for installers to err on the large size.

 


House-3 bed partial stone bungalow, 5kW Samsung Gen 6 ASHP (Self install)
6.9 kWp of PV
10kWh DC coupled battery
Blog: https://thegreeningofrosecottage.weebly.com/
Heatpump Stats: http://heatpumpmonitor.org/system/view?id=60


   
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 Blaine_t
(@blaine_t)
New Member Member
Joined: 2 years ago
Posts: 2
Topic starter 06/05/2024 1:57 pm  

I have considered that and I would have expected to see it in the past - but looking at this period last year it wasn’t doing the same . Heat loss calculation had space heating yearly demand as 8KW/hrs.

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