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Chapter 6:
Electrical System
6.1 General
Your Scout is equipped with 120 volt AC and 12
volt DC electrical systems. The AC system can
draw current from one of two sources, either shore
power outlets at dockside or the generator. The
DC system draws current from onboard batteries.
Your boat and engine charging system is designed
for 12 volt, absorbed glass mat (AGM) marine
batteries. AGM batteries are maintenance free.
All wires in the electrical systems are color coded
to make identifying circuits easier. Wiring sche-
matics have been included with this manual to aid
in following an individual circuit.
6.2 12 volt DC System Overview
The 12 volt system is a fairly standard marine sys-
tem. There are five or six batteries, depending on
the engine options selected. One for each engine
and two in parallel for the house, generator and
electronics. There is also a dedicated battery in a
forward compartment to power the optional bow
thruster. The house battery bank is connected to
the engine auxiliary charging circuits.
The engine and house batteries are located in
battery boxes on each side of the mid equipment
room companionway below the aft facing lounge
seat. The battery for the optional bow thruster
is mounted in a storage compartment below the
forward cockpit sole.
Triple engine battery systems are controlled by
five battery switches, one for each engine, one for
the house 12 volt accessories and electronics, and
one for the generator. Quad engine battery sys-
tems are controlled by six battery switches, one
for each engine, one for the house 12 volt acces-
sories and electronics, and one for the generator.
The engine and house batteries are charged by the
engines or the battery chargers when connected to
shore power or when the generator is operating.
The bow thruster battery is paralleled to one of
the engine batteries and is also charged by the
engines or battery charger. The optional bow
thruster unit is located in the forward bilge com-
partment below the cabin berth. It is controlled
by a main switch that is activated automatically
when the bow thruster is energized. The main
switch also provides overload circuit protection
for the bow thruster. It is accessed through a
hatch below the forward center berth cushion in
the cabin.
Most 12 volt power is distributed to the 12 volt
accessories through individual circuit breakers lo-
cated in the cabin DC panel, battery switch panel
or by fuses in the CZone control output modules.
All circuit breakers and fuses are labeled with the
name of the circuit they protect.
Main circuit breakers in the battery switch panel
protect the primary circuits for the CZone control
modules, continuous (24 hour) power, windlass,
hardtop switch panel, electronics, stereo ampli-
fiers, and the main 12 volt power supply. Other
main breakers in the panel protect the battery
charger circuits for the batteries and additional
accessories. The “push to reset” circuit breakers
in the panel protect the circuits for the trim tab
pumps and switches. Most 12 volt accessories are
operated directly by switches in the helm electron-
ics panels, hardtop switch panel or switches in the
cabin. Other accessories are controlled directly
with the CZone control feature.
Scout Boats Marine Standard Wiring Code
COLOR
USE
Brown (Br)
Pumps
Orange (O)
Accessory Feed + 12 VDC
Dark Blue
Cabin/Courtesy/Instrument Lighting
Pink (Pk)
Fuel Sender
Dark Gray (Gy)
Navigation Lighting
Black or Yellow
12 VDC Ground
Purple (Pu)
Ignition Instrument Feed + 12 VDC
Green (G)
DC Grounding (Bonding)
Red
+ 12 VDC Power
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