I bought a solar package the inlcudes a new Victron MultiPlus-II inverter for my 2009 Tiffin Phaeton 36QSH. The old Xantrex RV2012GS had two 30-amp (one hot wire) conductors as inputs and two 30-amp conductors on the output side. The Victron expects one 50-amp (two hot wires) input and output. Can I combine the 30-amp conductors by joing the two neutrals together? Some people say that combining neutrals will cause the GFCI circuits to trip. My solar dealer was clueless and I can't contact Victron directly.