World Class Catamarans
3-4
VOLTAGE SENSOR RELAY (VSR)
The twin voltage relay sensors are integrated into the battery switch cluster. They distrib-
ute the charging output from the engine alternator to the “cranking” and “house” batteries.
After starting an engine, the alternator sends electricity back to the “cranking” battery to
recharge it. Once the “cranking battery” is fully charged (13.6 volts), the VSR closes to
allow the alternator output to charge the “house” battery. When the VSR is operating, the
LED indicator located on the management panel will be lit. It will remain lit until the bat-
tery is fully charged, or the “cranking” battery voltage falls below 13.6 volts. It is common
for the VSR to cycle “ON” and “OFF” during operation. However, constant cycling could
indicate a problem in the system and should be checked by your dealer.
EMERGENCY PARALLEL
In the event of a battery failure, the “EMERG PARALLEL” switch allows you to mechani-
cally link the port “cranking” battery to the starboard engine or vice versa. The switch
should remain in the “OFF” position when not in use. To prevent voltage spikes or drops
which can damage electrical components, you cannot draw power from the house battery
using the “EMERG PARALLEL” switch.
24 HOUR CIRCUITS
The push-in breakers located across the top of the management panel protect the 24 hour
essential circuit wiring. Per NMMA and USCG guidelines, these breakers are constantly
energized to provide power for bilge pumps and memory functions. This helps to protect
your vessel even when you are not available. The “HOUSE” switch does not need to be
“ON” for these breakers to have power. Inspect the breakers regularly, and push-in to
reset. If a breaker trips constantly, have your dealer investigate the problem as soon as
possible to prevent damage to your boat.
ANCHOR WINDLASS
A 50 Amp breaker is installed at the factory for owners who request the anchor windlass
option; otherwise, a blank is installed to permit aftermarket additions. If you choose to add
a windlass to your boat, contact your dealer for information on selecting a breaker to fit
the panel.
BATTERY SELECTION
World Class does not provide batteries from the factory or recommend a certain manufac-
turer; however, we work with our dealers to provide suggestions on the type and size battery to
use. For “cranking” batteries, World Cat suggests a Group 27 starting battery with a minimum
of 650 cold cranking amps (CCA). Starting batteries are designed to provide quick bursts of
power and should not be used as a “house” battery.
For the “house” battery, we recommend a Group 27 deep cycle battery. Deep cycle batteries
have a higher reserve capacity and are designed to be recharged several times without perma-
nent damage to the battery. Your dealer will install batteries prior to delivery of your World Cat.
Use these guidelines, or contact your dealer, when replacements need to be made.
! DANGER
Disconnect the battery cables from the batteries prior to removing or working on
the battery management panel. Failure to do so could result in electric shock. Ref-
erence the NMMA pamphlet in your “Owner’s Portfolio” for more information.
