Ventilation And Drainage Systems; Engine Compartment Ventilation; Natural Ventilation System; Forced Air Ventilation - Four winns V Series Owner's Manual

NOTICE
V series layouts and content do vary based on
model size, standards and options available.
Equipment and its location may vary.
Equipment availability is subject to change
without notice.
K - 1 ENGINE COMPARTMENT VENTILATION
All Four Winns V series models are equipped with
engine compartment ventilation. This system is
designed to meet or exceed the requirements (in
effect at the time of manufacture) of the U.S. Coast
Guard, the National Marine Manufacturers Associa-
tion, and the Ameri can Boat and Yacht Coun cil.
A. Natural Ventilation System
This system includes air intake and exhaust com-
ponents. The air and exhaust ducts reach to the lower
bilge area. This provides adequate air movement
while underway and during bilge blower operation.
B. Forced Air Ventilation
All Four Winns V series models are equipped with an
electric bilge blower. The bilge blower provides the
venti lation required prior to starting the en gines and
while at idle. See Section H - Electrical Systems for
blower operation instructions.
Before starting the engine(s) or gener ator,
operate the engine compart ment bilge blower
for four (4) minutes. Then check the engine
com part ment for gasoline vapors. AL WAYS
oper ate the bilge blow er while the engines are
at idle or the genera tor is in use. Failure to
comply could cause explosion and there by
inflict serious injury or death.
Fumes can come from batteries while charging.
A concentration of hydrogen fumes can be
explo sive under the right conditions. Ensure to
follow the above warning.
Ventilation and Drainage Systems - Section K

Ventilation and Drainage Systems

A gas vapor detector is a monitor which will
alert the opera tor of an accu mula tion of gaso-
line fumes in the engine compart ment.
Available on certain V series models. If
equipped, DO NOT rely solely on detectors or
similar equipment. ALWAYS conduct a physical
inspection of the engine compart ment.
C. Engine Ventilation System Mainte nance
Periodic inspection and cleaning of the ventilation
ducts is necessary to ensure adequate air circula tion.
A buildup of leaves, twigs, or other debris can severe-
ly reduce ventilation. Be sure bilge water does not
accumulate to a level that would obstruct the ventila-
tion ducts.
Blower operation can be tested by placing a hand
over the vents. DO NOT rely on the sound of the
blower. Be sure a substantial amount of air is being
exhausted by the bilge blower. Check the bilge blower
system often, preferably before each cruise.
K - 2

CABIN VENTILATION

The V series cabins are equipped with deck hatch (es)
for ventilation. Certain aft cabin window opens to
provide ventilation. The cabin's side window(s)
(portlight) on certain V series models may be opened
to provide additional ventilation.
Failure to properly ventilate the boat while the
engines or generator are operating may permit
carbon monox ide to accumu late inside of the
cabin. Refer to Section B-2 - Carbon Monoxide
and Sec tion E-2 - Engine Exhaust for addition al
informa tion.
Screens and blinds for the forward deck hatch(es) are
available on certain V series models. If equipped, this
"layered" deck hatch system allows the screens and
blinds to be slid to the desired position with ease.
Also, storage for the screens and blinds are built into
the screen/sun/shade system. See Figure K1.
NOTICE
Owner's Manual Page 132