Installing new Xantrex RS3000

[mbrund]

The RS series does have a transfer switch built in.

THe charger is a 150 AMP charger and requires 25 AMPS AC I believe
to operate at that rate. So wire is going to have to be run no
matter what as the current wiring was slightly under-rated for the
circuit to being with as it appears to be 14/2 (which is derated to
15 AMPs by code).

Yes, the BB engineers used a set of relays that engaged side is
coming from the breaker panel and they jumper shore power to the
relay coil as well. The other side of the relay is attached to the
inverter. When shore power is lost the relays go back to the
inverter contacts as the relay coil is not being driven by shore
power and now you are on inverter power on those circuits. But like
I said in the prior message, that circuit has to be protected by a
circuit breaker between the inverter and the coils, just happens
that the Heart units in the coaches have one built in the inverter
(it is a round push button type on the face of the inverter). But
some of the new inverters don't install such an breaker and require
that an external breaker be used, which is just the case in the
Xantrex RS series.

Michael Brundridge
92 WB40
Georgetown, TX


--- In WanderlodgeForum@yahoogroups.com, "Gregory OConnor"
wrote:
>
> Unless The RS3 has a transfer requirement I cant see a need to
> supply the RS3 with any more than 20 amps of wire size to run the
> chargers and 25 amps of wire size from the inverter to the
inverter
> run appliances and recepticals. (300w/120volts=25amps)
>
> My 1994 with a Heart 2800 must have some 12v/120v relays that
select
> the inverter power path because it is not like one leg of the
panel
> is hot on inverted power????
>
> I wonder if Xantrex has insight on the retrofit or a tech hotline.
> If someone here has info the only sure thing would be a horror
story
> or what not to do. All other installs may not be totally necessary
> or proven.
>
> when I pas a hydrolic line through plys of steel, I make the hole
> round and larger. Round to keep from cracking, large to keep frm
> slicing the product.
>
> GregoryO'Connor
> 94ptRomolandca
> --- In WanderlodgeForum@yahoogroups.com, "mbrund" <mbrund@>
> wrote:
> >
> > Well here goes nothing. Ripped out the old Heart 2000 and twin
> Iota
> > 45's today. Pulled the charger electrical box and the jbox for
> the
> > inverted circuit off the firewall. The conduit is too small
> (1/2")
> > for the new 50AMP circuits that need to be run to and from the
new
> > Xantrex RS3000. So will have to cut a larger hole in the floor
> > behind the curb side draw in the bed room below the circuit
> breaker
> > panel into the engine comparment next to the old circuits. Will
> > then run teo new 3/4" liquid tight conduits from there to the
> > inverter box above the batteries.
> >
> > Will need to pull the original 50 AMP circuit at the coach
breaker
> > panel and run it to a new 50 AMP breaker panel. Will mount the
> new
> > breaker panel behind the current breaker panel but facing the
> other
> > direction into the shirt closet, will cut an access panel in the
> > shirt closet upper left storage area so the breaker cab be reset
> if
> > it trips. Will then need to run out of this breaker panel to
the
> > inverter input. Then return from the inverter to the original
50
> > AMP breaker in the coach. The down side is that everything in
the
> > coach will be able to be on the inverter when shore power is
> lost.
> > But I plan to add the Auto-generator start to the RS3000 so if I
> > lose shore power it will start the generator when the batteries
> get
> > down to a set voltage.
> >
> > Anyone else been down this road? If so would be interested in
> > hearing what you did.
> >
> > I know some have replaced the original Heart with a Xantrex
> RS2000,
> > the issue they may or may not know is that the RS2000/3000
doesn't
> > have a built in circuit breaker. The old Heart inverters in our
> > coaches have a 15 amp breaker on the inverted circuit. The way
the
> > older WB's are designed requires a circuit breaker in the
inverter
> > as there is no breaker on the inverted side of the coach AC
> circuits
> > due to the way the WB engineers designed using relays vs a 2nd
> > breaker panel. So if you have swapped your inverter out, please
> > make sure that either your inverter is a built-in circuit
breaker,
> > or that you have added an external breaker to the inverted
circuit.
> >
> > Michael Brundridge
> > 92 WB40
> > Georgetown, TX
> >
>