Regal LS4C Owner's Manual page 72

Helm Switch Panel
Bilge Blower Typical Switch Panel Shown
The helm switch panel controls various vessel
electrical components. The main battery switch
must be activated for most of the switch functions
to work except for the automatic side of the aft bilge
pump. When a particular component is activated
the blue icon portion of the switch lights up. This
feature is great for night cruising, too. Below is a
brief description of each switch. Note that select
switches may represent optional equipment that is
not installed on your vessel.
Bilge Blower
One of the most important components on board
is the bilge blower. The bilge blower switch (see
photo above) controls the powered ventilation
system bilge blower sometimes referred to as
the blower. Read & understand the following
label!
WARNING
GASOLINE VAPORS CAN EXPLODE
CAUSING INJURY OR DEATH!
BEFORE STARTING ENGINE, CHECK
ENGINE COMPARTMENT
FOR GASOLINE OR VAPORS.
OPERATE BLOWER 4 MINUTES.
RUN BLOWER BELOW CRUISING SPEEDS.
Typical Ventilation Blower with Hose
The powered ventilation system (blower) aids
in removing any gas fumes from the engine
compartment and any joined spaces. In addi-
tion, the blower removes any polluted air.
Never obstruct or modify the ventilation system!
Periodically check the black "4" hoses con-
nected to the blower for tightness. In addition,
ensure there are no holes or tears in the hoses
since efficiency may be compromised. Also,
make sure the attached hose extends into the
lower third of the bilge. This is important since
gasoline fumes are heavier than air and tend to
gather in the lower bilge.
When the blower is activated any fumes will be
drawn up the hose and dispersed overboard
through the aft deck mounted exhaust vent.
Note that there are other black hoses attached
to the aft vents that may extend a shorter dis-
tance from the vent not like the longer extending
exhaust hoses. These shorter hoses bring fresh
air into the engine compartment and allow the
engine to "breathe" so it can run more efficiently.
They comprise the "natural " ventilation system.
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