Westerbeke 21A Manual de instalación descargar pdf (Pagina 26)

CONTROL WIRING

For control wiring, see the DC WIRE SIZING page in this

manual.

NOTE: All wiring should be tied down with clamps or plastic

ties, and spaced at intervals close enough to prevent chafing

from vibration. Check to make sure all the harness connec-

tions are tight and that they are made to the appropriate

terminals.

Refer to the wire size chart (DC) in this manual when

selecting the wire size to be used between the engine control

panel and remote start/stop panel. Use color codes to comply

with ABYC Standards. See your WESTERBEKE Operators

Manual for the remote panel wiring schematic.

NOTE: Generator AC load connections, shore power

connections, voltage adjustments and all the necessary

wiring diagrams are included in your WESTERBEKE

Operators Manual.

AC WIRING (GENERATORS)

Various AC output voltages and frequencies are available for

your generator. For these specifications, and for information

about AC wiring connections and adjustments, refer to your

Operators Manual.

The generator’s data plate gives the voltage, current and fre-

quency rating of the generator. A diagram of the various AC

voltage connections is provided on the AC wiring decal that

is affixed to the inside of the louvered cover at the generator

end of the unit.

Recommended publications concerning electrical installation

standards and safety codes are listed in the SAFETY

INSTRUCTIONS section of this manual. Make sure that all

electrical connections, tests and adjustments are performed

by a qualified electrician.

BATTERIES

Starter batteries should be located as close to the engine or

generator as possible to avoid voltage drop through long

leads. Install a battery disconnect switch in the B+ cable so

the battery can be disconnected when the engine/generator is

serviced. It is bad practice to use the starter batteries for other

services unless they require low amperage or are intermittent.

In cases where there are substantial loads (from lights,

refrigerators, radios, depth sounders, etc.) it is essential to

have a complete, separate system and to provide charging

current for this by means of a second alternator, dual output

alternator or alternator output splitter. The output splitter is a

standard marine accessory. It comes with complete

instructions on how it can be integrated with an electrical

system.

Starter batteries must be of a type which permits a high rate

of discharge.

See your Operators Manual specifications for cold cranking

ampere hours requirements. Most marine batteries on the

market today have large cranking capacities. The battery

compartment must be well ventilated to prevent

accumulation of explosive battery gases.

Mount the battery in an acid-resistant tray on a platform

above the floor. It must be secured to prevent shifting. If

mounted in an engine compartment, always install a

non-metallic cover to prevent battery damage and arcing

from accidentally dropped tools. Be sure the battery

connections are clean and tight, then cover the battery

terminals with a dielectric grease to retard corrosion.

U.S. Coast Guard regulations and Marine Insurance

Companies require that the ship’s batteries have a fixed cover

or holdown straps to keep the batteries in place should a

rollover occur.

Carefully follow the recommended wire sizes shown

in WESTERBEKE’S wiring diagrams for the battery

connections:

GROUNDING

Generators and propulsion engines must be grounded in

accordance with USCG regulation 33CFR183.415. The

regulation requires that a common ground conductor be

connected between the generator and the vessel’s main

propulsion engine’s grounded cranking motor circuit.

The engine or generator must be bonded to the vessel’s

common bonding conductor with a bonding strap. If a

metallic fuel line is installed between the fuel tank and the

engine/generator shutoff valve, it too must be bonded to the

same vessel common conductor.

This conductor prevents accidental passage of cranking

current through the fuel systems and smaller electrical

conductors common to engines and generators. This can

happen if a cranking motor ground circuit becomes resistive

or opens from corrosion, vibration, a bad cable, etc.

ELECTRICAL SYSTEM

▲ CAUTION:

The electrical code will not allow DC

wiring to be routed together with AC wiring.

BATTERY CABLE REQUIREMENTS

Maximum Length of One Cable

Cable Size 2 1 0 00 000 0000

Length ft. 45791114

Length m.. 1.2 1.5 2.1 2.7 3.4 4.3

▲ WARNING:

Do not connect the starting battery

until installation is complete. Accidental starting of the

engine or generator could cause serious personal injury.

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Westerbeke 21A Manual de instalación Pagina 26

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