12-Volt Dc System; Fuses And Circuit Breakers; Battery Switches; Batteries - Bayliner 3388 Owner's Manual Supplement

12-Volt DC System

Fuses and Circuit Breakers

Fuses and circuit breakers for engines, main accessory power and windlass power are located on the DC main distri-
bution panel (starboard side of salon). Electronic's power is provided at the upper helm station. Some equipment,
such as depth finders and shower pumps may have secondary fuse protection at the unit.

Battery Switches

Separate rotary battery switches (port side of cockpit) are provided for each battery. In addition, a parallel switch is
provided at each helm to enable you to start the engines using all engine batteries in the event that engine battery
power is low.

Batteries

The batteries supply electricity for lights, engine and generator starting, as well as power to turn on accessories. Peri-
odically remove the battery caps and check the electrolyte level. If the zinc plates are exposed, add distilled water
until they are covered. Corroded battery terminals can be cleaned with baking soda and water. After cleaning the ter-
minals, coat them with a light film of grease. Be sure all battery connections are tight.
Battery condition can be checked on the "Electrical System Monitor" located on the DC distribution panel. The con-
dition of the accessory battery can be read on the starboard engine voltmeter when the accessory battery switch is in
the ON position. The starboard voltmeter will register the accessory battery state even when the engines are shut
down and the ignition switches are turned off.

Engine Alternators

The engine alternators will maintain proper charge levels in the engine and accessory batteries (some situations may
require running engines at 1200 RPM to initiate charging).

Battery Charger

The battery charger has a separate brochure, in your yacht's owner's packet, that explains its operating features. We
strongly suggest that you read the operating instructions before using the battery charger. The battery charger is
located on the engine room center bulkhead (forward, starboard side). The battery charger will charge the batteries
whenever the boat is plugged into 110-volt shore power or whenever the generator is operated. The circuit breaker
for the battery charger, located on the main AC power panel, must be in the ON position for charging to occur.
The battery charging systems (alternator and battery charger) installed are designed to charge
conventional lead-acid batteries. Before installing gel-cell or other new technology batteries,
consult with the battery manufacturer about charging systems requirements.

110-Volt AC System

The AC system is energized by either shore power or an onboard generator. Master Circuit breakers, for power
source selection, are on the AC panel (starboard side of the salon). This system is designed so that ship's power and
shore power sources cannot supply power simultaneously.
Whether using shore power or the generator (option), the simultaneous use of several AC com-
ponents can result in an overloaded circuit. It may be necessary to turn off one or more acces-
sories in order to use another accessory.
WATER HEATER DAMAGE HAZARD! - Do not energize the water heater electrical circuit
until the heater is COMPLETELY filled with water. Even momentary operation in a dry tank
will damage the heating elements. Warranty replacements WILL NOT be made on elements or
tank damaged in this manner.
CHAPTER 3: COMPONENTS / SYSTEMS
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CAUTION
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3388 Motoryacht • Owner's Manual Supplement
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