Chaparral 420 PREMIERE, Owner'S/Operator'S Manual

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exposed parts with fresh water, and drying and
spraying with a moisture repellent.
You can clean a soiled cable with a grease-cutting
household detergent. To maintain their original
appearance, periodically apply a vinyl protector.
In case of salt water spray or immersion: Rinse thor-
oughly the plug end and/or connector end in fresh
water; shake or blow out excess water and allow to
dry. Spray with a moisture repellent before reuse.
BATTERY CHARGER
The battery charging unit (Figure 7.9) is located on the
aft bilge component board. It is fully automatic and
designed specifically for the marine environment. A
high frequency characteristic has allowed these
chargers to attain a significant size and weight reduc-
tion over their previously used equipment. Commonly
called high frequency or smart chargers, these units
bring a new sophistication to the battery charger field.
They feature a built-in amperage indicator located on
the front panel. This gives an accurate reading of the
combined battery current and load current. If the bat-
teries are fully charged and no load is present, the
ammeter will read near zero. To verify that the charg-
er is functioning properly, turn on lights or other load.
The ammeter should register an increase.
Note: Leave the converter running at all times to
maintain the 12 volt system voltage.
A multi-stage charger has three (3) stages of charg-
ing. These stages are bulk, absorption, and float.
Bulk, the initial stage, is a charge at a constant rate.
The next stage is absorption, which helps reduce
heat while still charging the battery at the natural
absorption rate. Then the float stage kicks in to
maintain the battery charge without overcharging.
LED LIGHTING
The 420 Premiere uses 12 volt LED lights through-
out as the primary lighting system. The system is
powered by the 12 volt batteries. It is activated by
the lighting breakers on the DC distribution panel in
the salon.
Your boat is equipped with a variety of different light-
ing fixtures. Always replace a bulb with one of the
same type and wattage as the original bulb.
GROUND FAULT INTERRUPTER
RECEPTACLES (GFI)
Ground fault interrupter receptacles (Figure. 7.10) are
located in the salon, galley, and cockpit galley.
The GFI receptacles provide protection against cur-
rents that can be dangerous even though they do
not overload the circuit breakers. If there is a differ-
ence of more than 5 mill amperes, a safety switch
trips in the outlet and interrupts the circuit. This pro-
tects the person who is operating the electrical
equipment from serious electric shock or loss of life.
The outlet may not eliminate the feeling of an elec-
tric shock, but it does open the circuit quickly
enough to prevent injury to a person of normal
health.
The GFI receptacles are out of sight and wired inline
with the exposed receptacles throughout the yacht.
This allows your sport yacht to have an elegant
exposed receptacle while still providing protection
from shock hazards. Please read and understand
the CAUTION block for GFI receptacles.
7-12
BATTERY CHARGER
Figure 7.9 Battery Charger Location
WARNING: Never block air circulation through
the unit. Never store gear on top of the units.