30
248 BAY SERIES
Fuel System:
Diurnal Vapor and Emission Control Integrated
Fuel System:
Your
SEA PRO
boat has been outfitted with a
Technologically Advanced marine fuel system that
exceeds the Performance, Safety and Environmental
Protection Criteria as outlined and required by the
Environmental Protection Agency, U.S. Coast Guard and
Marine Industry standards and practices. This fuel
system meets Fuel Tank Permeation requirements,
Hydrocarbon Emission controls, Proper Fuel Vapor
Release and Elimination of Fuel Spit
-
Back events.
What is Diurnal Vapor?
The temperature variation that occurs during the
normal day
-
night cycle of each 24 hour day is
called a Diurnal Temperature Cycle. The heat of
ambient air during the day can cause gasoline
temperatures to rise inside of a tank, causing fuel
expansion and an increase of fuel vapors.
This fuel expansion and increase in vapors can increase
pressure build up in a fuel tank and system causing the
following problematic issues to occur;
•
Fuel Tank Vapor Permeation
: During the height
of a diurnal cycle, a tank that has been
manufactured using a permeable (permitting
liquids or vapors to pass through) material will
release more fuel vapors into the environment
than allowed by regulations.
•
Hydrocarbon Emissions released into the
atmosphere
: Improper venting and vapor
control can allow untreated hydrocarbon
emissions to be released into the atmosphere.
•
Fueling Spit
-
Back and Spillage
: over
-
filling of
fuel and the unchecked increase in pressure can
cause fuel to dangerously spit back through the
fueling fill cap onto the operator and polluting
waterways and the environment.
The Fuel Tank in your
SEA PRO
boat has been
manufactured using a ceramic coated aluminum. This
tank material increases the fuel system
’
s performance;
•
The ceramic coating helps to insulate the fuel
tank contents which decreases the temperature
variance, decreasing the effects of fuel expansion
and fuel vapor pressure increases.
•
Tank structure strength and consistency also
helps to decrease the effects of fuel expansion
and fuel vapor pressure increases by creating
physical stability.
Most marine fuel systems can be broken into two
categories, Passive Purge and Vapor Pressure Relief. most
recreational vessels have
either one or the other
installed as it
’
s primary system to control Diurnal Vapor.
Your
SEA PRO
boat has been built with a Hybrid Fuel
system comprised of
BOTH
of these.
The Fuel System Diagram on the next page has each
component labeled and shows the configuration of the
SEA PRO
Hybrid Fuel System.
SYSTEMS & COMPONENTS
Summary of Contents for 248
Page 1: ...Owner s Manual and Quick Reference Guide 2017 WWW SEAPROMFG COM 248BAYSERIES ...
Page 39: ...248 BAY SERIES 39 SCHEMATICS WIRING DIAGRAMS 248 Bay Deck Wiring Harness Diagram ...
Page 40: ...40 248 BAY SERIES SCHEMATICS WIRING DIAGRAMS 248 Bay Hull Wiring Harness Diagram ...
Page 41: ...248 BAY SERIES 41 SCHEMATICS WIRING DIAGRAMS 248 Bay Battery Wiring Harness Diagram ...
Page 42: ...42 248 BAY SERIES SCHEMATICS WIRING DIAGRAMS 248 Bay Amp Power Wiring Diagram ...
Page 43: ...248 BAY SERIES 43 SCHEMATICS WIRING DIAGRAMS 248 Bay Dash Helm Switch Panel Diagram ...
Page 44: ...44 248 BAY SERIES SCHEMATICS WIRING DIAGRAMS 248 Bay Inside Helm Console Wiring Diagram ...
Page 46: ...46 248 BAY SERIES SCHEMATICS WIRING DIAGRAMS 248 Bay Hard Top Optional Switch Panel Diagram ...
Page 47: ...248 BAY SERIES 47 SCHEMATICS WIRING DIAGRAMS 248 Bay Hard Top Optional Wiring Harness Diagram ...