Thanks for posting that copy of the Newell Owner's Manual. I read over it and learned a few things. One was that the battery merge switch allows the engine batteries to be charge by the converter/charger when it is charging the house batteries when connected to shore power.
It would be nice if John C could post a copy of the 1999 Newell Owner's Manual.
Tuga & Karen Gaidry
1999 Newell 45 w/2 slides