Westerbeke 21A Manual de instalación descargar pdf (Pagina 38)

The ventilation requirements of the engine or generator

include the following: combustion air is required for the

engine’s cylinders, and cooling air is required for the engine

and generator electrical end and also for removing the heat

produced during operation.

Keep in mind that hot air rises, so heated air should be

removed from the upper area of the engine or generator

compartment and cool fresh air should be directed to the

lower areas of the compartment. Ventilation should be

accomplished with the aid of power ventilation especially

when the vessel is not underway.

Power ventilation incorporates a powered exhaust blower to

draw air from the compartment and discharge to the

atmosphere. The exhaust blower must meet a specific

capacity rating based on compartment volume. The graph

below is used to calculate the required capacity.

NOTE: See your Operators Manual for the ventilation

requirements of your generator. Refer to the ABYC standards

and U.S. Coast Guard regulations for ventilation require-

ments on both engines and generators.

VENTILATION

▲ WARNING:

Ventilating air is required to clear the

bilges, as well as the compartment in which the engine

or generator is located, of potentially toxic and

flammable vapors.

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Westerbeke 21A Manual de instalación Pagina 38