Attached is a revision on the drawing you looked at for me . My appologoies for the lack of proper symbols.
I have the bilge
pumps and a low amp ventilation fans directly to the battery each fused.
The solar panel is directly on the battery. It has a built in control circuit.
Fuse ratings shown are not accurate just place holding txt blocks.
Is a 100 watt 30 amp solar panel enough to charge 4 parallel 100 amp hour batteries?
Do I need a switch to isolate the chargers from one another? (Solar panel and charger/powersupply)
Would it be better to break up one of the busses so that a section is hot all the time and hook my fan and bilge
pumps in there?
Should I base my fuse values for dedicated circuits on the wire ratings or the devices maximum load ?
Do you think its over kill on the number of batteries given the devices shown ?
Stared at your schematic for awhile and I think I got it. I'll break it down as follows.
Green lines negative and red is positive
No engine so no starter motor or alternator wiring
Propane gen set has no starter motor, is it a pull start like a Honda 2000?
There are 4 batteries in two banks, 2 batteries in parallel in each bank, 12 volts each
Switch S1 for shore power or Gen Set is actually AC wiring to the inverter/charger unit
Switches do not switch neg wire even though that is implied by your schematic
Numbers in blocks on the right are amp ratings of circuit breakers
Overly complex for what you are trying to accomplish, consider one battery bank and one battery monitor. Amp hour capacity depends on the load AND your ability to recharge to 100%, charger capacity should be at least 20% of the battery bank amp hour rating.
Not sure of your solar charge control wiring. Solar charge controllers can be connected directly, through a fuse or breaker, to the battery bank.
To help make things clearer try redrawing with charge sources on the left, battery bank center and loads on the right. This will show the energy path, energy in (charge sources), energy storage (battery), and energy out (loads). Also take a look at the Blue Seas web site, lots of good info there on DC wiring.
Hope this helps,
Steve (retired electronics engineer)[/QUOTE]