A Hamilto wrote on Mon, 24 April 2017 16:21

Interchange L1 and L2 as required so that the one that is grounded internally in the Onan is ground/neutral and the other feeds the hot side of the AC system.

Mr. Hamilto, Thanks for the reply. This leads me to believe that whichever wire is the neutral for the 120Vac system, it should be common with the appropriate wire of the Onan that is neutral, and should be bonded to the Onan chassis.

It's clear which wire is "hot", in my case it's L1. I say that because the L2 wire is connected to the breaker and I don't think they'd put the breaker on the "neutral" side of the system.

Best,
Dave