Great, thanks for the info. Makes sense.Yes ground the fridg. or any thing else to the chassis and the electrons go through the shunt. Think of the chassis as a wire from the battery negative to the ground wire on the WFCO. Join any electrical ground to it would be like connecting that wire to the ground wire. It is grounded, completing a circuit, AND it is connected to the battery ground beyond the shunt.
Oh and one more thing...... You might think about installing a battery disconect in the negative cable going to the chassis ground. I did so I can throw the lever and work on any part of my DC system without fearing shorting out anything. I used this one but others are available:
Good idea about the switch on the negative. I am adding CBs for that same effect everywhere else and I have a spare switch exactly like the one you linked to I can use for the negative.
When hooking up the alternator charging (battery isolator) that does not require anything different with the shunt or do I need to run a negative from the starting to the coach battery as well? Normally it is just the positive ran to the coach battery from the starter battery.
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