I definitely intend to rip into all this as soon as I get some time as I'm very curious. My inverter is a Xantrex Pro XM 1000 which does have an ATS. I believe the drawing to be accurate based on my previous look at the wiring, but I will definitely get another look at some point.
Attached photo is a picture of the breaker panel. The 15A labeled RECEPTS is the breaker that cuts 120 to the inverter when turned off.
What's odd is I don't recall seeing an inverter sub-panel or similar which would need to exist in some capacity to tie in the downstream outlets to the inverter output. I guess they could have also just wired a single wire into the output of the inverter and then daisy chained the outlets.
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