41
360 C
OASTAL
Chapter 4:
ELECTRICAL SYSTEM
4.1
General
Your Wellcraft 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 dock side or
the optional generator. The DC system draws current from
on board batteries.
Your boat and engine charging system is designed for 12-
volt, lead acid, wet cell marine batteries. They will require
similar maintenance as those found in automobiles. Do not
attempt to use gel cell, absorbed wet mat or other non wet
cell batteries. The engine charging system is not designed to
recharge these batteries which could cause unusually short
battery life or engine starting problems. You also should not
mix the size or brand of the wet cell batteries. Always con-
sult your Wellcraft dealer before changing the type of batter-
ies in your boat.
All wires in the AC or DC electrical systems are color coded
to make identifying circuits easier. Wiring schematics and a
wire code identification list have been included with this
manual to aid in following an individual circuit of the boat.
4.2
12-Volt System
The 12-volt system is a typical marine system. There are three
primary battery banks, one for the starboard engine, one for
the port engine and house or accessories and one to supply
power to the optional bow thrusters and for starting the gen-
erator. The batteries can be charged by the engines or by the
battery charger when hooked to shore power or when operat-
ing the optional generator.
All 12-volt power is distributed to the 12-volt accessories
through individual circuit breakers located in the 12-volt
breaker panel in the cabin and the breaker panel in the helm.
Main fuses located near the batteries protect the primary DC
systems from an overload. “Push to reset,” continuous power
circuit breakers on the cabin breaker panel protect the auto-
matic circuits for the bilge pumps, high water alarm and bilge
pump, CO monitor, ECM for each engine, stereo memory,
cabin drain sump pump, SeaKey and entry lights. Another
heavy duty “Push to Reset” breaker protects the circuit for
the windlass.
Main breakers located on each engine protect the ignition
systems and gauges. Some 12-volt accessories are operated
directly by a circuit breaker in the breaker panels while oth-
ers are operated by a switch fed by the breakers. Most of the
12-volt accessories on the deck and cockpit are operated by
switches in the helm switch panels.
The system is equipped with a battery parallel feature that
will connect both engine battery banks in parallel for extra
battery power while starting the engines. A momentary switch
located in the helm switch panel activates the battery parallel
relay located near the battery switches in the engine com-
partment. When the switch is pressed, the relay is engaged
to connect both engine starting battery banks, when the switch
is released, the relay is deactivated and the battery banks are
isolated.
PROPER FUSE OR BREAKER PROTECTION MUST
BE PROVIDED FOR ALL 12-VOLT EQUIPMENT
ADDED. DO NOT OVERLOAD THE ACCESSORY
CIRCUIT BREAKERS OR OTHER CIRCUITRY
THROUGH ADDITIONAL 12-VOLT EQUIPMENT.
Battery Switches
There are three ON - OFF battery switches located on the
DC breaker panel in the cabin. The switches are labeled and
activate the heavy duty battery switch relays located near the
batteries in the engine room. Each battery switch relay has a
manual override that can activate or deactivate the switch if
the relay fails. The manual override is a red knob on each
battery switch/relay that can rotated to select the “ON” or
“OFF” position.
12-Volt Battery Banks
Summary of Contents for 360 Coastal
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Page 125: ...125 360 COASTAL Appendix A SCHEMATICS 120 Volt AC Breakers...
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