[Rhodes22-list] electrical wiring diagram

[cowie]

Rob:

Thanks for the reply and compliment, not very often an engineer has
something nice to say to an architect.

1. Battery #1 seems pretty clear and correct in my diagrams.

2. I am pretty sure that the solar panels do connect direct to the starter
battery as your notes suggests.

3. I see three white wires coming out of the switch, one clearly goes to the
top part of the bus that I assume is the positive side of the bus, the other
two I assume go to each of the batteries in order to control how and what
power is available at the bus.

4. I always thought that white wires were supposed to be positive and  black
negative?  The water pump with in line fuse and macerator pump with in line
fuse are clearly connected each with a white wire to the top of the bus what
I beleive is the positive side.  That leaves me with two more white wires
coming out of the top of the bus, one I assume goes tot he main breaker
panel, not sure were the other one goes unless is also feeds the breaker
panel.

My batteries are only charged by the solar panels and the outboard and so
far my first season this has been quite adequate to serve my electrical
needs.  I single hand sail and while I had about seven overnight trips this
past season I don't use much power.  My biggest draw is the electric start
and outboard lift, occassional sink pump, gps and vhf that don't draw much. 
I might eventualy add a shore power charger.  I do have shore power but only
for AC convenience outlets while plugged in.  The AC does not run unless I
am plugged into shore power, no innverter.

I will try to clean up these diagrams and post them to the site so others
can use them.  I notice other sailing forum such as the catalina seem to
have more detailed information about their boats than the R22 does, however
they don't seem to have as lively a group as we do.  Thanks again for the
input.


Rob Lowe wrote:
> 
> Chris,
> Hey, pretty good for an architect :) (sorry, I'm an engineer).
> 
> 1.  This sounds correct.  Typically battery 1 is your "house" battery and
> battery 2 is your starter battery.  Your starter battery will receive it's
> charging current from your outboard.  It would make sense that your lift
> is connected to the same battery.
> 
> 2.  Not sure about your solar panels, but I would assume they are
> connected to your starter battery.  Your most important battery is your
> starter battery so it would make sense that your solar panels are
> connected to the starter battery to keep it charged. 
> 
> 3.  That is correct.  The switch controls which battery(s) is connected to
> the bus.
> 
> 4.  You have the buses labeled correctly.  Anything with an in-line fuse
> will be connected to the positive bus.  You don't state which colored
> wires are connected to which bus, but wiring conventions say the common
> (negative) wire should be white.  The positive can be black,  red, or even
> another color.  The larger wires carry more current, I assume the largest
> ones go to your motor and other high current devices.
> 
> Do your batteries get charged while on shore power?  If so, your got a
> battery charger somewhere in your boat which is probably wired to your
> buses.  How about AC power while not connected to shore power?  If so,
> you've got an inverter somewhere coming off the buses to feed your AC
> circuits.  
> 
> - Rob
> 
> 
> 1. The outboard has a single set of wires that appear to go to a block
> with
> pos and neg terminals to which the starter is also connected.  This block
> appears to be connected direct to battery #2, my starter battery.  I think
> the  battery #2 directly powers the starter and lift and also receives a
> charge direct from the outboard alternator.
> 
> 2. I beleive the two solar panels go direct to battery #2 but I am not
> sure.
> If I am correct then battery #2 would always receive a trickle charge when
> the sun is shining and battery #2 could also recieve a charge if the
> battery
> switch is in the both position.
> 
> 3. The battery switch seems to control how power is provided from battery
> #1
> and or battery #2  to the power bus.
> 
> 4. The power bus seems to provide power to the main panel, the macerator,
> the water pump, the vhf radio.  I see two big white wires and three small
> white wires, two big black wires and four small black wires, I don't
> understad were all of these go and what they do.
> 
> 5. The main distribution panel seems to have switches that control
> circuites
> to each of the appliances, cabin lights, dc outlets etc....
> 
> With input and corrections I can post a more accurate set of diagrams for
> fleet reference.
> 
> http://old.nabble.com/file/p26924423/05.jpg
> 
> http://old.nabble.com/file/p26924423/06.jpg
> 
> http://old.nabble.com/file/p26924423/07.jpg
> 
> http://old.nabble.com/file/p26924423/08.jpg
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