I'm having some issues with the system I install last summer. My converter is tripping my shore line GFI. I'm not sure yet as to the cause, but I'm hunting it down. My question; is the BP-220 bidirectional? The dealer I worked with okay'ed my drawing, but I'm thinking now there was an oversight somewhere? Due to wiring pull restrictions my converter (battery charger) output is connected to the load of the BP-200. The orange arrow is the output of my converter. I'm thinking now this isn't going to work. If the BP-200 is bidirectional it should work.