Last seen: Sep 4, 2025
How do people find switching from DHW to space heating in respect of the flow and return temps? For example, going from a 52C flow (for 47C DHW temp)...
I asked the question to gain more understanding in the context of the flow/return temps rather than that being what I wanted to/was planning to achiev...
I lowered my flow rate to c. 11L/m for the Ecodan and the heat/power output went down to c. 3.8kW :-/ The deltaT remained around 5 so I assume Ecodan...
This may seem like a daft question but can I please check - one should always aim for their systems to have a return temp of <target temp> + dT ...
so conversly, flowrate = heat / 4.18 / deltaT Using 6kW as power ('heat'), 6 / 4.18 / 8 * 60 (to get lpm) = 10.77lpm, or the 10.8 I quoted - nice. ...
@Richard24738 - how did this pan out?
Nudging this thread to see if any other Ecodan can share their experiences of their set up and how it behaves when heating water. [quote]Further...
It can be controlled using PWM (profile A), yes, but we don't have a 2nd plug connected at present. I think this is the next area I'm headed ...
It's on the return before the mag filter so I assume so. Good points. Yep, already done/doing - though it feels like the effects on readin...
That would seem logical, however do you know if the FTC (via pump speed setting) can control third party pumps, or only their own? I know the Grundfo...
As mentioned above, the one I have 1) has the MITSUBISHI suffix after the VVX20, and 2) states 5..80 lpm on the front - I can't find much info or suff...
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