Hi post for Keith quick diagram check
Hi I am about to have an install done by my local electrician (registered and qualified) - who has done solar inverters but not Sunsynk...I have done a diagram based on the Inverter Manual and the Sunsynk Youtube Training video's, I noticed some disparities so I have tried to distill this down to a basic wiring harness for my system. I hope you can just cast your eye over - I think I have covered all the key points. I was surprised when I drew it out - it actually is not that complicated. I want to give this to my electrician so he has all the key information.
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Yes the middle one is the load from inverter to essential Load, nonessential load is supplied connected to the grid. The inverter will connect the essential load to the grid if there is no PV or batteries cannot support it and if Grid is available. The load output is the UPS, if you apply GRID to it you will blow the inverter UP! If you want to supply the essential load if inverter cannot do it you need a Changrover switch/Contactor.