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 .
7027 • A2 07/11
42
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leCTriCal
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eCTion
3
Summary of Contents for 720 FLY
Page 1: ...HIN CDR__________________ 2012 Version 1 Marquis 720 FL Y Owner s Guide...
Page 2: ......
Page 4: ......
Page 6: ...Table of Contents 7027 A2 07 11 Lower Helm Components...
Page 7: ...Preface 7027 A2 07 11 i Bridge Helm Controls...
Page 10: ...Preface iv 7027 A2 07 11 PAGE INTENTIONALLY LEFT BLANK...
Page 41: ...7027 A2 07 11 29 DC Electrical System Section 2...
Page 42: ...30 7027 A2 07 11 DC Electrical System Section 2 PAGE INTENTIONALLY LEFT BLANK...
Page 56: ...PAGE INTENTIONALLY LEFT BLANK 7027 A2 07 11 44 AC Electrical System Section 3...
Page 59: ...Air conditioning system Stateroom deck 7027 A2 07 11 47 Internal System Section 4...
Page 62: ...Internal water system 50 7027 A2 07 11 Internal System Section 4...
Page 86: ...74 7027 A2 07 11 Propulsion Section 5 PAGE INTENTIONALLY LEFT BLANK...
Page 120: ...108 7027 A2 07 11 Warranty and Parts Section 9 Thru Hull Fittings...
Page 121: ...7027 A2 07 11 109 Warranty and Parts Section 9 Thru Hull Fittings...
Page 122: ...110 7027 A2 07 11 Warranty and Parts Section 9 Bill of Materials...
Page 123: ...7027 A2 07 11 111 Warranty and Parts Section 9 Marquis Limited Warranty...