Marquis 720 FLY, Owner'S Manual

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THE TEST bUTTON HAS bEEN PRESSED. CONTACT A QUALIFIED ELECTRICIAN TO MAKE APPROPRIATE REPAIRS.
ELECTRICAL LOADS
Be aware that each device exerts a “load” on the system when operating AC powered devices through the AC electrical system . The
electrical load is equal to the amount of current (amps) that the device draws from the AC electrical system . The AC electrical system
is designed with a maximum total load that the device can handle . Each LINE circuit has an electrical load capacity of 50 amps .
The breaker for the LINE circuit will trip if the total load on the circuit exceeds the circuit’s capacity . Meaning that the devices operat-
ing from the circuit are drawing too much current .
WarNiNg
DO NOT OVERLOAD THE ELECTRICAL CIRCUITS. TURN OFF ALL DEVICES CONNECTED TO THE CIRCUIT, THEN SWITCH
THE bREAKER bACK ON IF AN EXCESSIVE LOAD TRIPS A CIRCUIT bREAKER.
A list of common AC powered devices and the approximate maximum current that the devices draw while operating is shown in the
chart below . If an AC-powered device is used that has an electric motor, such as a vacuum cleaner or electric drill, the device should
have a “motor load plate” mounted on it . The motor load plate lists the current that the device draws while operating .
ELECTRICAL LOAD PER DEVICE
AC DEVICE APPROXIMATE MAXIMUM CURRENT USED
(AMPS)
Fan 0 .7
Electric blanket 2 .0
Television 2 .7
Coffee maker 6 .3
Battery charger 7 .3
Toaster 10 .5
Frying pan 12 .3
Space heater 13 .7
Refrigerator 1 .5
As detailed above, appliances using a motor or a heating element draw relatively large amounts of current . Exercise caution when
using appliances such as: curling irons, toasters, coffee makers, hair dryers, food mixers or similar types of AC powered devices .
DO NOT use too many motor operated appliances at the same time .
B
onding
s
Ystem
A comprehensive metallic bonding system that interconnects all underwater equipment and thru-hull fittings is equipped on each
model . The bonding system ensures that all metallic equipment onboard, including the fittings, have at the same electrical potential .
The bonding system minimizes corrosion of the underwater fittings caused by stray electrical currents .
Sacrificial zinc anodes is a component added in the bonding system in the drive units and the underwater portion of the yacht’s
transom . The anodes corrode and deteriorate before the yacht’s underwater fittings . The anodes also provide a visual reference to the
level of stray current that the yacht is exposed to .
The yacht’s 12 Volt DC electrical system, AC electrical system, and the batteries’ negative leads are all connected to the bonding
system through bus bars .
The bus bars are located in the engine room and aft bilge area, and are connected to the transom-mounted
zinc plate .
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