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Last seen: Sep 19, 2024
@guthrie The red and white vessels will be expansion tanks, one for the heat pump water circuit and the other fro the Domestic Hot Water (DHW). To...
@cathoderay Have a look at page 143 of the attached manual.
Welcome to the forum. I cannot see an error 01 in the manual for an Ecodan, which may or may not be relevant. When you say the heat pump is running...
@cathoderay It is quite simple really. Like decimal, binary can be represented in rows and columns. Decimal. Binary. Tens. Un...
A further factor to consider is how the setback is achieved. If it is by using the WC offset, it may just be reducing the LWT by the offset, and raisi...
@cathoderay I fully agree that the heat loss will reduce as the IAT reduces at a constant OAT. If the LWT is now returned to the value it was prio...
@cathoderay Many thanks Ray.
@cathoderay If you can provide all the variables covering the past week at 1 minute intervals that should be more than adequate.
What you suggest is fine whilst the weather is reasonably mild, although inclement. My concern would be when the temperatures get colder, the IAT woul...
I suspect the recovery is taking longer today because the IAT was lower, and because you are limiting the permitted LWT increase to 3C, this in turn i...
@sunandair I suppose the starting point would be to try to ascertain if your desired control philosophy is actually achievable. If you expect (as ...
@josephiah When the clocks changed, did you manually change the time on the controller or did it occur automatically? Try changing the time back to ...
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Degrees of Separation
Latest Posts
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RE: Has anyone seen this problem before? Huge anticycling times
Mine was replaced as they couldn’t fix and couldn’t ide...
By cg360 , 1 hour ago
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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 , 3 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 , 6 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 , 11 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...
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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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