VERY Basic RV system question

John, by any chance, are you wanting help with how to achieve the electrical aspects of the installation? When I "say" electrical, I am refer to how one gets the wires to and from said points safely. For example. If the PV modules are mounted to the roof of the RV, which type of conduit and conduit accessories (ie.; LB's, straps, boxes) does one use? Or, maybe the PV array, cc. and batt. are stationary at the site and you want to "plug in" the RV. As well, what type of wire? Where to place the fuses in the circuit?
If these are the types of question you would like some help with, my advice would be to make friends with a local, experienced electrician. Maybe work out some sort of barter if necessary. There can be so many variables and obstacles when preforming electrical tasks. A knowledge of all the different electrical "parts" and sizes (and tools) available might make the difference in an all day job or just a "few hours" job. It might even make the difference in how satisfied you are with the purchases you've made for years to come.
 I mean, its pretty obvious, to me, that you don't want, 10/2 Romex running form the PV array on the roof, wrapped around the vent pipe, and then down through a hole in a screen, and along the wall with bent over nails securing it, where it then runs through a door opening and is landed on the charge controller. You want a professional job done. Wires in liquid tite conduit where they are outside, fuses in boxes, all securely strapped. All neatly done, sized and typed right. No leaks. John, with the last name of Griffith, is there any chance your RV is "down east" in the Carolinas maybe?

John.
I would connect the load, to the load terminals. It will allow the controller to monitor and control all loads. (Not just when sun is out)
The controller will protect your battery against overcurrent and overtemps caused by load. It also limits battery discharge to 11.4 volts. Preventing discharges below this limit, will prolong battery life.

Ken