Hey, since we were just discussing sofa/beds over on
tgreening's thread, I thought I would check out your build also. I read the whole thing, and so far and the project is looking GOOD! It's funny though, we all seem to run into the same problems, and have the same questions. And speaking of which, I have a couple of questions and comments myself.
1. Once your sofa/bed is deployed, how wide is it? Does it make a standard size bed and if so, what size?
2. I would keep the grab handles by the doors for sure, unless you're planning on doing some seriously close quarters four wheeling and you're worried about them snagging on something. Mine doesn't have any and I'm looking for some now.
3. Those door switches on the back module not only notify the driver if a door is open, they normally turn on the overhead lights when a door is opened, just like the ones in any vehicle turn on the dome lights. I would probably disconnect the buzzer also, but keep the rest.
4. Just FYI, the battery selector switch and battery isolator are two different things. The problems with the older isolators are, (1) They require constant power to operate (engine running) from one of the batteries, usually the house bank, and (2) They don't allow the batteries to come up to a full charge, which an alternator will not provide anyway, but they make it even worse. Think of it as a 'wye' adapter in a water hose, with a one-way check valve in each side of the 'wye'. Even though it prevents one battery from dragging down the other battery, it still causes a lot of resistance in the system.
Blue Sea Systems has come out with something called an 'ACR' or Automatic Charging Relay, which is something I'm considering for my tow vehicle since my ambo is being converted into a camper trailer with no engine. They have a good write up on it
here. If you can afford it, Blue Sea components are top of the line and the way to go IMO. Their
website also has good load calculators, guides, and wiring diagrams for just about every type of configuration.
I just checked and Amazon has a pretty good section of Blue Sea Systems stuff
here. If you're a Prime member, that means no tax and two day shipping!
I hope this helps some and I subscribed to this thread, so I'll be following it to see how everything goes.
~ Pat