Originally Posted by mikeandbecky
I'm looking for some advice on upgrading to a new converter in my '79 Excella 500, 31'. The old Univolt had been removed( no, the old fuse panel was not salvaged
, and the wires were cut around it to free it for removal. What I have now is shown in the attached picture. From what I can tell, left-to-right:
120 AC wire to converter( with black electrical tape), solid copper ground wire to converter, then a small dia. grey wire, spliced into a black 12 ga.wire to the converter. (Not sure, but maybe this goes to the "Power On" indicator light to the control panel in the galley?) , then there is a shorter fiber insulated Positive DC lead to the converter, next to that is the longer Negative DC lead to the converter.
The black cable drooping in the back is a coaxial cable routed through from the TV antennea..
Does anyone know or forsee any problems when I connect the new converter to these leads? Im thinking of possibly a WFCO 45 Amp 9800 series, or maybe an Inteli-power with the built-in charge wizard? Can I hook up the AC to the AC and the Pos. DC to the Pos. DC, etc.. Or is there something that Im missing? I read an older post about fusing the Pos. battery lead to the converter in case of a short or surge? Should I do that?
Thanks for the advice in advance!
Yes you can do everything you just said. What you want to make sure is that you have a 35-45 amp fuse between the battery and the charger. Take a look at this schematic.
You don't need three fuses, but at least one will do. You'll probably need to buy a fuse holder and install it in a covered electrical box or something. I think that either of the choices you have made will be fine, as will Iota, and the OEM from Inland. I recommend that you think about going with a 55 amp unit, since your trailer is newer and bigger than mine, we did a 35 amp.
You will find out, when you buy a new converter, that it has a regular 110V AC plug for connecting to the trailer. You should install an outlet box, with outlet, in the cavity and then plug your new converter into it. Makes trouble shooting easy.