Does Conext SW require any special setup for 120V operation?
No. Simply by connecting loads across L1-N output, the Conext SW will provide 75% of rated power (due to imbalance).
By connecting a 120V input source across L1-N input, draw from AC input will be limited to 15A (CSW4024) or 13A (CSW2524)
for charging and pass-thru combined.