Hello everyone,
to illustrate my issue I attached a sketch of my HVAC loops.
In my case I want to benefit from solar collector in my DHW energy demand. But at the end ther is even a higher energy DHW demand due to the acting of the tempering valve. I implemented this valve to regulate the return flow of the DHW demand side and the outflow of the solar tank. Unfortunately there is a mass flow rate on the use side of the solar tank even though the temperature of the DHW demand side is higher than the solar tank temperature. So there is a cooling-down of my DHW return flow.
Now I tend to implent an EMS that overwrites the original behavior of the tempering valve. Any idea ?
I'd be grateful for any advice!
Thanks in advance.
Regards,
Christian R.