Coach vs. Generator batteries on FC

[Jeff Miller]

I believe the '82 to be wired as such:

The genset battery is tied to side A of the solenoid. The genset
battery is also the one which energizes this relay when the Aux.
Start button is pushed, which is to say that you can't start a dead
genset by pushing this switch.

Side B of the solenoid has a wire forward to the starter (to tie in
with the main battery bank). It is also wired to the leveling pump,
and to side A of the shunt under the stepwell.

Side B of the shunt under the stepwell is tied to the (110v)
chargers. The charger path is from the chargers, through the shunt
(which are intended to read 110v-source charging for the main
batteries), through a connection at one side of the solenoid to the
starter, and then on through various other connections and
junctions "straight" to the main battery bank.

It does the job, but to be kind, there are better ways to get the
charging power to the main battery bank.

- Jeff Miller
in Holland, MI



--- In WanderlodgeForum@yahoogroups.com, "Scott Forman" <sforman@...>
wrote:
>
> Hello all,
>
> I have just finished removing my leveling pump from beneath the
stair
> well in anticipation of receiving a new one. While under there, I
> have noticed various battery connections. I am looking for help to
> understand it all.
>
> It appears that a cable comes from the generator battery to the
> solenoid on the leveling pump. On that same pin, there is also
> another battery cable coming from a shunt attached to the back on
the
> step well right next to the leveling pump. The other side of that
> shunt then has a cable that seems to come from the coach battery
bank
> and there is another solenoid attached here...I am assuming this is
> the solenoid activated when you hit the battery boost switch on the
> dash to tie coach & gen bats together.
>
> A couple questions:
>
> 1) Does this all sound correct?
>
> 2) It would appear that the coach and gen bats have a connection to
> each other through this shunt whether the dash switch is activated
or
> not. If this is the case, what happens when that solenoid is
> activated?
>
> 3) If the coach bats and gen bat are always tied together, couldn't
> the coach bats draw down the gen bat in a low voltage situation and
> leave me stranded? I was under the impression that if I ever ran
my
> coach bats down dry camping, it wasn't a big problem as the gen bat
> was isolated I could start the gen to charge the bats.
>
> Just trying to understand all this and make sure mine is wired like
> it should be. This area doesn't seem to be covered on any of the
> blueprints in my blue box.
>
> Thanks
> Scott Forman
> 82 FC35RB
> Memphis
>