Is it possible that the genny is 240V 3ph, which would deliver 110V to each single phase socket, and 240V across phases?cant find a spec sheet for that genny, tho by the looks of that red socket and the triple pole breaker, its 3 phase.
thats the smallest 3 phase genny i've seen!
no, it wont suit your application, without modification to the vac.
That type are quite common in the marine industry