Generac Power Systems NP Series - Manual (Page 29)

Section 6 - Installation INSTALLATION
PRIMEPACT 55G and 55LP Recreational Vehicle Generators
Figure 6.12
-
Air Inlet Using Ductwork
ANTI-SPLASH
Figure 6.13 - Air Inlet in Vehicle Skirt
♦ 6.3.4 TESTING THE INSTALLATION_________________
Generac recommends testing the installation to be sure
adequate cooling airflow is available to the unit before
placing the unit into service. If the unit shows signs of
overheating, you will need to enlarge the air openings.
Never place a unit into service until absolutely certain
that cooling and ventilation is adequate.
NOTE;
You must test the installation, especially if you bring
in air from below the generator set.
6.4 GASOLINE FUEL SYSTEIVi
The installation of a gasoline fuel system (Figure 2.14)
for a recreational vehicle generator set must comply
with applicable codes, standards and regulations. The
entire fuel system must be completely free of leaks.
There must be no possibility of gasoline vapors entering
the vehicle interior.
Figure 6.14 - Generator Fuel System
♦ 6.3.3 COMPENSATING FOR RESTRICTIONS
Such materials as screening, louvers or expanded metal
can restrict the free flow of air. Compensate for this
restriction by making the actual air opening propor­
tionately larger.
Some materials may offer only a 60 percent “free air
inlet area.” Other more efficient materials may provide
up to a 90 percent free air inlet area. The percentage of
free air inlet opening is usually available from the mate­
rial supplier or manufacturer.
To determine the actual air inlet opening size
required, divide 100 square inches by the percent­
age of free air inlet area for the material you will use.
For example: If you plan to use screening with an 80
percent free air inlet area, divide 100 by 0.8, which
results in 125 square inches. Minimum actual size of
air inlet opening in this case is 125 square inches.
DANGER
A Gasoline is highly flammable, and its vapors are
explosive. Comply with all codes, standards and
regulations pertaining to gasoline fuel systems
used in recreational vehicle generators. Properly
install and maintain the fuel system and keep it
entirely free of leaks. Gasoline vapors must not
enter the vehicle interior.
Factory installed generator fuel system components
Include (a) fuel filter, (b) 12-volt DC electric pump, ( c )
engine carburetor, and (d) interconnecting lines and fit­
tings. Connect a fuel supply line to the fuel filter inlet.
Use a flexible length of approved fuel hose between the
fuel filter inlet connection and rigid fuel lines.
Generac* Power Systems, Inc. H7