Question about Generac Guardian 200 Amp Transfer Switch NEMA 3R

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Hello, I have a 20KW Generac Quietsource, my problem is simply I can't seem to get the battery charge to work. I figured out that I needed to run a 120v line for the battery charger and I connected it to the 'line' and 'grn' screws leaving the 'neu' disconnected. The battery will now charge to ~5.80 volts and no more. The diagram in the manual shows the connection should be to 'line' and 'neu' while the schematic shows the connection to be 'line' and 'gnd'. If I keep swapping lines around I'm afraid I'm going to melt something. Not sure what to do. Hopefully the above is clear enough, if not I can elaborate.

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Justlaffs,

Follow the instructions in the diagram in the manual. You cannot have a complete circuit with the neutral disconnected and the unit would be dangerous as the external metal surfaces could be at 120 vac and be a shock hazard. I do not understand why you have two different hookup instructions but you definitely need to hook all three wires up, black, white and green.

Thanks for using FixYa and for the great rating.

hardrocko

Posted on Oct 02, 2010

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