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30 Generac
®
Power Systems, Inc.
Never tee the generator engine exhaust pipe
into the vehicle engine exhaust piping. This
causes excessive back pressure on the genera-
tor engine. Also, water from one engine can
damage the other engine.
6.6.1 MUFFLERS AND SPARK ARRESTORS
This muffler meets code and standard requirements
of the U.S. Forest Service. Use only mufflers and
parts approved by Generac. Any person(s) installing
an unapproved muffler, or an unapproved exhaust
system part, or modifying an exhaust system in any
way that might cause a hazard, is liable for any dam-
age, injury or warranty expense that might be caused
by such unapproved installation or modification.
Failure to provide and maintain a spark arrestor may
be in violation of the law. If this generator is used on
any forest covered, brush covered or grass covered
unimproved land, a spark arrestor must be provided.
The vehicle owner or operator must maintain this
device in good condition. In the state of California,
the preceding is required by law (Section 4442 of the
California Public Resources Code). Other states may
have similar laws. Federal laws apply on federal
lands.
When installing/replacing the tailpipe or spark
arrestor components, verify that the tailpipe has a
hole to securely fasten the spark arrestor compo-
nents (see Figure 6.13). Use only Generac supplied
hardware. Substitution of parts may cause damage to
the screen or a loose fit to the tailpipe.
Figure 6.13 — Spark Arrestor Installation
6.6.2 EXHAUST SYSTEM SAFETY
• Maintain a clearance of at least 3 inches (76 mm)
between exhaust system parts and any com-
bustible material (such as wood, felt, cotton,
organic fibers or other like material). If the 3-inch
(76 mm) clearance cannot be maintained, locate,
insulate or shield the exhaust part(s) so that the
temperature of any combustible material is not
raised more than 117° F (65° C) above the ambient
air temperature.
• Extend the exhaust system at least 1 inch (25 mm)
past the outer edge of the vehicle. Do not terminate
the exhaust system under the vehicle.
• Terminate the exhaust tailpipe such that exhaust
gases will not be drawn back into the generator
compartment and recirculated.
• If there is any possibility of the tailpipe or muffler
being damaged, protect these damage-prone areas
by means of a protective device (such as a skid
bar).
• Install the generator exhaust system according to
safe automotive practices.
• Use enough exhaust system hangers to prevent any
part of the system from being dislocated.
• Use exhaust system parts recommended by
Generac. Using unapproved exhaust mufflers and
exhaust system parts is the responsibility of the
person(s) installing such unauthorized parts.
• Do not terminate the exhaust system under any
opening, window or vent that can be opened or is
not permanently sealed from the vehicle interior.
• Exhaust piping must be large enough to prevent
excessive back pressure on the generator engine.
• Never tee the generator engine exhaust pipe into
the vehicle engine exhaust piping. This causes
excessive back pressure on the generator engine.
Also, water from one engine can damage the other
engine.
• Plan exhaust system installation carefully. Comply
with all applicable codes, standards and regula-
tions.
6.7 ELECTRICAL CONNECTIONS
Be sure to read Section 5.6.
The following general rules apply to electrical con-
nections in a recreational vehicle:
• Qualified electricians who are familiar with applic-
able codes, standards and regulations should
install electrical wiring.
• The wiring should comply with codes, standards
and regulations. The National Electrical Code
(NFPA 70), and state and local codes apply.
• Switches and circuit breakers should be of a type
approved for use in recreational vehicles and must
be mounted and installed to prevent damage from
road shock.
• Wiring must be of adequate size, have approved
insulative qualities and be properly supported.
• Conduit and wire openings into the generator com-
partment (if used) must be vapor-sealed to prevent
entry of flammable, explosive or poisonous gases
into the vehicle.
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24
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0.95"
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3.5
[
9/64"
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O.D. 38.1 [1.50"]
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Section 6 – Installation
QUIETPACT 55, 65, and 75 Recreational Vehicle Generators