Tiara Yachts C49, Owner'S Manual, Page: 43 / 152

Electrical Systems Section 4
4-1
43 LS
43 LS
Electrical Systems
4.1 General
The electrical systems in your Tiara Yacht
have been developed to supply all the boat’s
electrical needs at the dock, at anchor, and
underway. While this manual will not attempt
to describe all of the electrical engineering
that went into the system, a basic under-
standing will help assure trouble-free oper-
ation.
Your boat is equipped with DC and AC elec -
trical systems. The DC system draws current
from onboard batteries. The AC system can
draw current from either dockside (shore
power) outlets or the generator.
Electrical schematics are included in Appen -
dix F to assist technicians in the servicing of
the electrical systems. Tiara recommends you
take your boat to an authorized Tiara Yachts
dealer for service or installation of additional
electrical equipment. Tiara reserves the right
to modify or update the electrical system at
any time without notice to the consumer or
obligation to make updates to boats built prior
to the change.
WARNING
!
All electric system service work
should be performed only by an
authorized Tiara Yachts dealer or
other qualified marine electrical ser -
vice facility. Failure to heed this warn-
ing may result in personal injury or
death.
4.2 12-Volt DC System
Power Supply
Seven 12-volt batteries have been selected
to provide optimum performance for engine
starting and house loads. Boats equipped
with an optional gyro are outfitted with two
additional batteries. The batteries are located
in the mechanical space. Refer to the engine
owner’s manual for information about the cir-
cuit breakers installed on your engines.
The house battery bank supplies power to
all the boat’s comfort and convenience func-
tions such as lighting, pumps, actuators,
stereo, and electronics, as well as the bow
thruster. The house bank should also be used
to power any aftermarket electronics.
CAUTION
!
All aftermarket electrical components
should be installed by your Tiara
Yachts dealer or other qualified marine
electrical service facility. They must
be installed to be powered from the
house battery bank only. The engine
battery banks are strictly reserved for
engine power only.
Battery Charging
The 12-volt DC system batteries are charged
by the engine charging system or by the bat-
tery charger when connected to shore power
or operating the generator.
Battery chargers (typical)
Your boat is equipped with two battery char-
gers. The 40 amp charger charges the house
batteries, and the 20 amp charger charges
the engine batteries. Both chargers are cal-
ibrated to provide the proper charge levels
for each specific battery. Changing the bat -
tery specification will require recalibration of