Jeremy Harris Posted October 13, 2018 Share Posted October 13, 2018 11 minutes ago, Ed Davies said: My main point, though, was that there's no electrical input needed to control the PCM's phase-change behaviour; as I understand it; that's purely a thermodynamic/chemical/mechanical thing, however it actually works? I can't see any means by which the electrical control box on ours can do anything other than enable or disable power to the heating element. There is nothing else that is controllable in the unit itself; ours just has a heating element in the base that's connected to a 3 core power cable, plus a string of temperature sensors fitted vertically into a pocket in the cell to sense the bottom, centre and top cell temperatures. I can confirm that the older Sunamp PV we had worked, in terms of heating hot water on demand, with the power supply to the unit turned off. That suggests that no electrical input is required for the cell to work, in either direction, it just needs control of the charge temperature so as to not cause problems with overheating the PCM. 1 Link to comment Share on other sites More sharing options...
Ed Davies Posted October 13, 2018 Share Posted October 13, 2018 38 minutes ago, Nickfromwales said: It is, but I’m not sure hydraulically how thermosyphon would work in a SA Don't worry too much about thermosyphon; I was just using it as an example of not using electricity. It's not something any real person I know of plans to do. 1 Link to comment Share on other sites More sharing options...
Nickfromwales Posted October 13, 2018 Author Share Posted October 13, 2018 Just digested the question you asked. Yes, the phase change is ‘au natural’ but ultimately you’d want the SoC controller to stop energy input if it was better off being sent elsewhere eg to space heating. Link to comment Share on other sites More sharing options...
Robert Clark Posted January 24, 2019 Share Posted January 24, 2019 On 13/10/2018 at 00:12, mvincentd said: Well on Wednesday they tried to tell me SA couldn't do heating AND dhw....then said they'd check with technical, and i've heard nothing since. I don't see these guys solving any time soon the difficulties we're all having with the communication of good information on Sunamps. Did you ever hear back from Eco Partners? Im wondering if they might be a competent and reliable supplier and installer of solar Pv and a Sunamp Link to comment Share on other sites More sharing options...
mvincentd Posted January 24, 2019 Share Posted January 24, 2019 8 hours ago, Robert Clark said: Did you ever hear back from Eco Partners? No, I didn't...and so I stopped banging my head against brick walls for Sunamp support and gave up on the idea. Link to comment Share on other sites More sharing options...
Triassic Posted January 25, 2019 Share Posted January 25, 2019 7 hours ago, mvincentd said: No, I didn't...and so I stopped banging my head against brick walls for Sunamp support and gave up on the idea. I’ve got the name and email address of the technical support person if you need it, PM me for it. Link to comment Share on other sites More sharing options...
mvincentd Posted January 26, 2019 Share Posted January 26, 2019 Thanks, but i've moved on now. Link to comment Share on other sites More sharing options...
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