Ah, ok. Thanks.

Maybe there's a relay on my refer.

I assumed it was just removed by PO.

On P 97.32b of my July 15 1991 Bentley, smaller blue wire supplys
engine running 12V to "htr. res. relay" which has 30, 87. 86, 85 pins.
I figure that's the refer relay.

Larger red from 30 of "fuse/relay panel" sends constant 12V via S4-16
amp fuse to water pump, sensors etc. and I assume the house light
though I can't see it in diagram.

The big question for me is do I have to run a 10 gauge from starter
batt. under and over to the new can?

If I don't, I can get the van off the jack stands and move on.

On 4/11/07, Mark Drillock <mdrillock@cox.net> wrote:
> Camper setups 80-81 are wired differently from 82-85 though the exact
> cutoff is somewhere in between years. Most Bentley versions show one
> wrongly labeled 80-85. The early diagram is not exactly correct but close.
>
> The can is a heavy duty relay, just of an aftermarket type often sold
> for aux batteries. They will work fine but I don't care for them because
> of how exposed the wiring is with them. I have never seen an official
> camper diagram for those years that included an aux battery.
>
>
> IIRC, the white wire is for the fridge 12 volt relay, which on early
> models is actually on the top of the fridge. ~82 on have the fridge
> relay under the driver's seat and a 2 fuse panel behind the driver's seat.
>
> Mark
>
>
> neil wrote:
>
> > Hi all.
> >
> > I searched, read Bentley, but  can't wrap my head around wiring for
> > aux batt. Partly because it *seems* that PO did something different
> > than stock.
> >
> > What I've got:
> >
> > a large "can" instead of relay, 10 gauge wire and connectors.
> >
> > In Aux batt. box, a blue wire (20 gauge?) connected to white (10
> > gauge?) wire. White runs to cabinet area.
> >
> > Red wire which *had* a 20 amp fuse in line. I had removed it. If I'm
> > not misreading, Bentley shows a 16 amp fuse there.
> >
> > Is "can" instead of relay ok?
> >
> > What amperage fuse should be inline of red wire?
> >
> > Does blue wire supply 12V for "can" to operate? i.e. when engine running?
> >
> > What does white wire connect to?
> >
> > Blue wire shows 0V with engine off or with key at Ign. position. Have
> > not measured blue with engine running. (Front of van up on stands)
> >
> > Larger red shows 12V when engine off. Pretty sure it supplies 12V to
> > house light and is always on.
> >
> > For now, my plan is to wire refer, stock house light and an added
> > connector (cig. jack?) for DC accessories, directly to aux batt.
> >
> >
> > As always any help much appreciated and apologies for such begginer
> > questions.
> >
> > Many TIA's,
> >
> >
> >
> >
> >
> > --
> > Neil Nicholson. 1981 Air Cooled Westfalia.
> >
> > http://web.mac.com/tubaneil
> >
>

--
Neil Nicholson. 1981 Air Cooled Westfalia.

http://web.mac.com/tubaneil