Generac Power Systems 4270-0 - Manual (Page 31)

Section 2 - Installation
INSTALLATION
QUIETPACr™ 75D Recreational Vehicle Generator
2.5 EXHAUST SYSTEil
The generator exhaust system must be safely and
properly Installed. Only approved mufflers and other
exhaust system parts must be used. A properly
installed exhaust system must be vapor tight, quiet
and completely safe.
DANGER
The generator engine gives off DEADLY carbon
monoxide gas through its exhaust system. This
dangerous gas, if breathed in sufficient concen­
trations, can cause unconsciousness or even
death. Never operate the generator set with
the vehicle inside any garage or other enclosed
area. DO NOT OPERATE THE GENERATOR IF THE
EXHAUST SYSTEM IS LEAKING OR HAS BEEN
DAMAGED. SYMPTOMS OF CARBON MONOX­
IDE POISONING ARE (a) inability to think coher­
ently; (b) vomiting; (c) twitching muscles; (d)
throbbing temples; (e) dizziness; (f) headaches;
(g) weakness; and (h) sleepiness.
IF YOU FEEL
ANY OF THESE SYMPTOMS, MOVE INTO FRESH
AIR IMMEDIATELY. IF SYMPTOMS PERSIST, GET
MEDICAL HELP. Do not operate the generator
until its exhaust system has been inspected and
properly
repaired.
—A CAUTION M-----------------------------
A 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.
♦ 2.5.1 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 malntam 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, you must provide a spark arrestor.
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 PubUc Resources Code). Other states may
have similar laws. Federal laws apply on federal lands.
• 2.5.2 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 you cannot
maintain the 3-inch (76 mm) clearance, 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.
• Terminate the exhaust tailpipe at least 3 feet (91
cm) from the vehicle’s fuel filler cap and at least
2 inches (51 mm) past the outer edge of the vehi­
cle. 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.
• Fuel and oil must NOT be able to drip onto any
exhaust system part.
• The hole in the generator compartment floor
through which the exhaust pipe passes must be
larger than the exhaust pipe. Hole size should per­
mit Installation of a ventilated metal thimble that is
at least 2 inches larger in diameter than the
exhaust pipe (Figure 2.13)
Figure 2.13 - Typical Exhaust System
TAILPIPE MUST EXTEND 2 INCHES
BEYOND THE COACH BODYWORK
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.
Generac* Power Systems, Inc. S 3