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HP Cycling, Expected or Undesirable

 
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Air Source Heat Pumps (ASHPs)
Last Post by bontwoody 2 years ago
38 Posts
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bontwoody
 bontwoody
(@bontwoody)
Noble Member Contributor
Joined: 4 years ago
Posts: 1012
Topic starter 19/07/2024 6:26 am  

@old_scientist Hi, yes I was comparing COP without taking the cycling into account.


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


   
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bontwoody
 bontwoody
(@bontwoody)
Noble Member Contributor
Joined: 4 years ago
Posts: 1012
Topic starter 23/07/2024 8:06 am  

Just a little update. I ordered a longer shielded twin core wire and moved the control pad/thermostat into the living room from the hall where it was set to 24C allowing me to run on pure weather compensation. Ive lowered it now to 22C to limit the living room temp.

Last nights graph was very promising.

image

I finished the switch at 19.40 when the pump was cycling and the thermostat did its job keeping the room toasty and elongating the off periods. Ill have a play with WC settings over the next week or so and see if I can lower the flow temperature further.


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


   
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1
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