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Last seen: Sep 19, 2024
The values you calculated are the quantity of thermal energy that the heat emitters can supply to the rooms. To keep the IAT reasonably constant, it i...
Hi Chillybot, welcome to the forum. Don't despair, there are quite a number of very helpful people on the forum, who will hopefully guide you throug...
I have attached a radiator output calculator in a spreadsheet. The yellow highlighted cells are the ones that can be varied. If you know the flow an...
Sorry I should have made it clear. Most forum members now use the abbreviation IAT to denote Indoor Air Temperature. Bet you can't guess what OAT mean...
Yes, many of us prefer the IAT slightly warmer. One of the pleasures of growing older. 🙄 Of course increasing the IAT, increases the heat loss, whi...
What happened to the IAT when you raised the WC curve?
It is possibly electrical interference on the cable rather than affecting the thermistor. The controller will be measuring the OAT by passing an elect...
@walkers-heatpump I can't remember how many industrial control systems I have fine tuned over my 50+ years career, but when possible the first thing...
One thing that I would suggest is that you switch off AA mode for a while and optimise the WC curve, since my understanding is that in AA mode the con...
@fazel Thanks fazel, much appreciated. I suspect that the training manual is for industrial type units, since the smallest compressor of a twin co...
@ggw In addition to the suggestions by AllyFish, another reason could be electrical pickup from a nearby power cable, that is only live when the hea...
Welcome to the forum and thank you for the detailed report. I must admit that I was not aware of the Compressor On Guard Strategy, which I don't belie...
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RE: Can I start an argument about buffer tanks please? 🙂
Dont, just adjust the LSVs to get different temperature...
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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...
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RE: Do I need to change the control unit when replacing my Ecodan Air Source Heat Pump
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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....
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RE: Acond heat pump failed after four years - diagnostic quote £940 plus VAT
@downfield Thank you Downfield. This sounds potenti...
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