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Last seen: Sep 19, 2024
I think that you will find that the 'soft' start for an electric induction motor is only over a period of seconds, to limit the current inrush. The ...
Just a note of caution. Correctly optimising the WC curve can literally take weeks to achieve dependent upon variations in weather conditions. Only ...
It is interesting to see how the compressor appears to go up to maximum speed when the actually LWT is quite low when compared to the target value, wh...
If I am understanding correctly, your WC curve is set to LWT of 35C @ OAT of -4C and LWT of 30C @ OAT of 20C. So at an OAT of 0C, the LWT should be in...
@cathoderay So on your particular system, when in setback mode, the whole system appears to be disabled, including the water pump or pumps. When cyc...
It may have been adequate a few days ago, when the OAT was higher, but now 35.5C could be inadequate. Your system cannot be operating in WC mode if ...
@cathoderay The data that you are providing is extremely useful, because it not only provides a better insight into how heat pump controllers appear...
If you run your heat pump on a fixed LWT, the IAT will likely vary with changes in OAT. Applying a 1C setback may have just made matters worse. If y...
That would be the case if the water pump keeps running for the whole compressor off period. I believe that some heat pump controllers can be set to ru...
I would suggest that you check the location of the temperature sensor on your hot water cylinder, since if it is fitted too high up the cylinder you m...
@jamespa Hi James, I would welcome your thoughts on the following. Calculating the thermal energy output from heat emitters is fairly straightfo...
@guthrie I know that some controllers can be removed from their main housing and relocated using a suitable extension cable, but I'm not certain if ...
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RE: Can I start an argument about buffer tanks please? 🙂
Dont, just adjust the LSVs to get different temperature...
By JamesPa , 2 hours ago
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RE: Heat pump running costs – what has actually worked for you?
I installed the air source heat pump in January 2026, i...
By bobflux , 4 hours ago
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RE: Has anyone seen this problem before? Huge anticycling times
Im now getting the exact same fault list after 2 years ...
By JamesPa , 7 hours ago
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RE: Grant Aerona Air to Water R290 6.5 kW - Quiet Mark and Silent Running
Thats all interesting. DHW on my Vailant seems to respe...
By JamesPa , 9 hours ago
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RE: Do I need to change the control unit when replacing my Ecodan Air Source Heat Pump
One of the other mods has just reminded me that @ashp-b...
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RE: Electricity price predictions
So a final update on Charge Pack, now I have nearly rea...
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RE: Indevolt Batteries UK Support & Info Thread
My ideal install would have my battery installed before...
By BlizzardGreen , 1 day ago
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RE: PV and battery long payback - sense check query
@old_scientist I have now drafted 2 replies - both have...
By DavidB , 2 days ago
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RE: Air source heat pump roll call – what heat pump brand and model do you have?
Forum Handle: adrian Manufacturer: Appliandirect.co....
By Adrian , 3 days ago
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RE: Acond heat pump failed after four years - diagnostic quote £940 plus VAT
@downfield Thank you Downfield. This sounds potenti...
By Mia , 3 days ago
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RE: Digest of UK Energy Statistics
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