I have an aluminium sailboat with a a Victron Isolation Transformer 3600 were the chassis is grounded to the aluminium hull via a physical cable like the example below:
Now I want to add a MultiPlus II 48/5000 where AC-IN comes with N-PE-L from the Isolation Transformer according to the drawing below:
Now the question is: Do I have to connect the Primary ground connection (F) once again to ground the chassis directly to the aluminium boat?