I am looking at installing a Multiplus/Multiplus II at my business with Solar and grid supply. I need to have around 1000W available for critical loads but have around 2500W while fully online. I will therefore be providing around 4000W in solar to cater for all the load as well as allow for the cycling of batteries after hours.
So, I intend on leaving the circuits that add up to less that 1000W on the critical AC output of the Multiplus and then the rest on the non-critical output. How does the Solar power feed the critical and non-critical loads? Or can it not? Does the solar input have to be less than the inverter size on the Multiplus/Multiplus II?
I have looked everywhere on the Internet to try understand how the system works but can't find an answer. Please help me understand.