Solenoid between the chassis batteries and the generator battery

[Ralph L. Fullenwider]

Howard:

Current will go both ways when the tie switch is used. Engine won't start,
then you hit the tie switch to get a boost from the gen set battery. Gen
set won't start, hit the tie switch to get a boost from the engine/house
batteries. Tie switch back to normal, separates the batteries once again
via the solenoids, and charging returns through the diode or battery
isolator on the gen set. Some Coaches have a Bosh relay in that circuit, so
the tie switch energizes the Bosh relay and the currant flows to energize
the coils of the battery tie solenoids.

Some of the 90's Coaches have a three way battery tie switch. But will not
go into that one until I have had a po9ot of coffee and am fully awake.

Ralph

Safe travels,

Ralph and Charolette Fullenwider
Ralph's RV Solutions, Duncan, Oklahoma
http://home.swbell.net/rlf47/index.htm

At 08:22 AM 8/5/2006 -0400, you wrote:
>Ralph,
>Am I understanding correctly that the Aux. Switch when depressed sends
>current from the engine batteries directly to the generator
>starter. Depressing the Aux. Switch will not send current from the
>Generator battery to the Engine batteries.
>Howard Truitt
>Camilla, Ga.
>86 PT40
>
> ----- Original Message -----
> From: Ralph L. Fullenwider
> To: WanderlodgeForum@yahoogroups.com
> Sent: Friday, August 04, 2006 9:50 PM
> Subject: Re: [WanderlodgeForum] Re: Solenoid between the chassis
> batteries and the generator battery
>
>
> Greg:
>
> The idea of the battery tie switch, is pulling in the solenoids to bypass
> the charging path momentarily. This protects the diode or battery isolator
> from higher than rated amperage as well a passing full amperage one way or
> the other.
>
> Ralph
> Safe travels,
>
> Ralph and Charolette Fullenwider
> Ralph's RV Solutions, Duncan, Oklahoma
> http://home.swbell.net/rlf47/index.htm
>
> At 01:05 AM 8/5/2006 +0000, you wrote:
> >I would think the relays for the start Genset functions should run
> >off the gen battery only and any cross hooking could cause a path
> >around the diode and a failure to remotly start if house, coach
> >batteries are dead.
> >Gregory O'Connor
> >94ptRomolandCa
> >
>