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Last seen: Mar 21, 2026
Hi @boycey I don’t think the graphs you posted where they are straight and parallel are actually showing the HP in operation. If you look at them clos...
@boycey in terms of understanding MELCloud here are a few graphs from our radiator system we are reheating on a low and slow WCcurve after a 12 c se...
@boycey hi, So if your schedule was set back then it would appear the thermostat dropped below the setback temp at 4.40am and started heating but th...
hi Boycey There needs to be a few bits of other information to be 100% sure. Most importantly is the heat pump operating… 4am looks like hp is off...
hi @boycey I don’t have underfloor heating so can’t comment on what adjustment to the existing setup you might make. hopefully there may be others in ...
That’s great @boycey it might help to know how warm the room was at 14:00 and what was the outdoor ambient at the same time. It looks like the cyc...
Hi @boycey Optimum flow rate is 9 LPM for the PUZ WM50. Max/Min is 6 to 14.
principles are good. regarding DT3 this may or may not be issue. May be issue- if flow rate is high (I believe the 5kw model has a low flow rate, le...
@ecodan-efficiency Hi and thanks for your reply. just to clarify, over the past 2 years there have been several discussion threads on the Ecodan ...
@michel54 it’s really good news that your heating is now working. It’s always a bit unnerving, offering advice without fully knowing the system. I ho...
well I guess there might be some magic dust after all... even in weather compensation it’s happening. Not just Auto Adaptive. we have put our syste...
@michel54 hi Michel. The L9 fault is specific to a problem with the flow rate registered by your flow meter. If the flow rate drops below the usu...
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