Owner`s manual

C 340

4.3 DC Distribution System

The battery switches are a part of an

integrated DC power distribution sys-

tem that contains several components.

The following are descriptions of the

components:

COMPONENT DESCRIPTION:

Battery Switch: These switches

feed the engine(s) and DC circuits.

These are "ON/OFF" switches. Turn

the switch so that the green "ON"

indicator is displayed. All switches

should be in the "ON" position when-

ever the boat is in operation.

Parallel Switch: Connects the bat-

teries together for engine starting or

charging of batteries.

Voltage Sensitive Relay (VSR): The VSR allows two batteries to be charged either by one engine or by the

on-board battery charger. The VSR prevents both batteries from being discharged by automatically isolating

the engine battery.

24-Hour Essential Circuits: Used for protection of circuits that are not switched off by battery master

switches. In this installation, these switches include the aft bilge and stereo memory.

Medium Duty Circuit Breaker: Used to protect high amperage circuits and panel feeds. These include the

house main, the electronics main, trim tabs, the optional head and macerator and the battery charger breakers.

BATTERY SWITCHES

There are four battery switches and three parallel switches to manage the 12-volt power distribution.

The port start switch controls the battery for the port engine. The starboard start switch controls the battery

for the starboard engine. A parallel switch connects the port and starboard engine batteries for emergency

starting if one of the engine batteries is dead or low.

The electronics switch provides power to the electronic buss bar that feeds aftermarket electronics installations.

The house switch provides power to the house circuits on the boat. If the electronics or house battery is dead

or low, the parallel switch can be used to connect the two batteries together.

The center parallel switch connects the two battery banks together. This switch should only be used for

emergency situations.

For information on battery charging using the on-board charger, refer to Battery Charger in the AC systems

section of this chapter.

DC Power Distribution (typical)