Purchasing / filling the storage tank with VDI 2035 compliant heating water is not cost effective. Thus storage tank water needs to be plain tap or even groundwater and operated pressure-less (at atmospheric pressure). As a result the storage tank has all 10 "Ports" configured as "Empty". Coil 1,3,4,5, and 6 are configured with coil heat exchangers.
The much smaller volume collector and wall heating circuits will be filled with osmosis water (thus VDI 2035 compliant, I suspect)
Now the Polysun 2022.7 simulation (of a modified Ritter SFD) fails with Error 5077/33:
I suspect that this "Water" loop, is the "Water" in the storage tank. Which is intentionally configured without flow producer.The loop "Water" does not contain any flow rate producer.
How to workaround this 5077/33 error and create a seasonal storage without pressure and flow?