| Avion house battery wiring [message #258355] |
Sun, 10 August 2014 10:11  |
The Dr
Messages: 75
Registered: July 2014
Location: Toledo, OR
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I am about to try to install a new Progressive Dynamics power distribution center in my Avion and am trying to understand why the engineers chose to wire it the way that they did.
The front house battery is wired off of a 30A fuse in the interior fuse blocks while the rear two batteries are wired off of an inline 40A fuse. The two rear batteries are shown as wired in parallel and are used to start the Onan as well as add to the front house battery to drive the 12v system when the converter is off.
The only possibility I can come up with is that the fuse block is rated at a maximum of 30A per fuse and because it may be charging two batteries in the rear a 40A fuse was deemed necessary. I find that a weak argument since the converter is wired in through two parallel 20A fuses which means 40A protection if I remember my electrical from long ago.
I am considering wiring the two rear batteries from two 20A fuses in the new distribution center instead of the inline fuse since that would keep all of the fuses in one place instead of multiple locations.
Since a picture is worth a thousand words, the wiring diagram can be found in the Avion Interior Operation and Service Manual on page 6 on bdub's site at http://www.bdub.net/manuals/avion.pdf.
Special thanks to Billy for the site. It has really helped when my thumb drive and manual are in storage with the coach and I'm not. 
Thanks for any inspiration.
Mike Sauer
Toledo, OR
1975 26' Avion
1-ton front end, SullyBilt AirBag System, 3.21 tranny
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