Exhaust System; Muffler And Spark Arrestor; Exhaust System Safety - Generac Power Systems 004270-2 Installation And Owner's Manual

2.5

EXHAUST SYSTEM

The generator exhaust system must be safely and
properly installed. Only approved exhaust system
parts must be used. A properly installed exhaust sys-
tem 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 FEELING
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.
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 MUFFLER AND SPARK ARRESTOR

The exhaust muffler supplied with the QUIETPACT ™
75D is a spark arrestor type that meets code and
standard requirements of the U.S. Forest Service.
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 damage, injury, or warranty expense
that might be caused by such unapproved installation
or modification.
Section 2 – Installation
QUIETPACT™ 75D Recreational Vehicle Generator
◆

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 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 to more than 117° F
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.
Figure 2.13 – Typical Exhaust System
• 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.
(65° C) above the
MUFFLER PERMANENTLY
MOUNTED INSIDE
ENCLOSURE
TAILPIPE MUST EXTEND 2 INCHES
BEYOND THE COACH BODYWORK
Generac ® Power Systems, Inc. 29