Table of Contents
Advertisement
5.5.8 EXCESS FLOW VALVE
LP gas tanks should have an excess flow valve,
according to NFPA 501C, Paragraph 3-4.4. This valve
and the gas lines must be carefully sized so the valve
will close when a fuel line is severed or broken.
Consult the Natural-LP Gas Association for informa-
tion and limitations of excess flow valves.
Manual shutoff valves on the supply tank and else-
where in the system must be fully open when operat-
ing the generator. The excess flow valve functions
properly only if all valves are fully open.
5.5.9 LEAKAGE TESTS
Do not place the generator into service until you have
properly tested the gas system for leaks. To test the
system, you need a separate source of 12 volts DC to
open the gaseous fuel solenoid valve.
The leak test must comply fully with NFPA,
Paragraph 318. All connections, hoses, valve regula-
tors, fittings, and other fuel system parts must be
tested under gas or air pressure of not less than 90
psi (620 kPa), while using soap and water or an
equivalent solution to check for leaks. Other
approved methods of testing for leaks may be used, if
appropriate. DO NOT USE ANY FLAME TO TEST
FOR LEAKS.
DANGER
Gaseous fuel lines between the tank and the
secondary regulator are under a positive pres-
sure (about 11 inches water column). Gas pres-
sure at the outlet side of the secondary regula-
tor, however, is a negative pressure and can
draw flame inside a line or fitting and cause an
explosion.
5.6
EXHAUST SYSTEM
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 releases 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) nausea, (c) vomiting, (d) twitching
28 Generac
®
Power Systems, Inc.
Section 5 – Installation
QUIETPACT 50 and 70 Recreational Vehicle Generators
muscles, (e) throbbing temples, (f) dizziness, (g)
headaches, (h) weakness, and (i) sleepiness. IF
YOU EXPERIENCE ANY OF THESE SYMPTOMS,
MOVE INTO FRESH AIR IMMEDIATELY. IF SYMP-
TOMS PERSIST, GET MEDICAL HELP. Shut down
the generator and do not operate it until it has
been inspected and repaired.
DANGER
Never sleep in the vehicle while the genset is
!
running unless the vehicle has a working carbon
monoxide detector. The exhaust system must be
installed in accordance with the genset installa-
tion manual. Make sure there is ample fresh air
when operating the genset in a confined area.
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.
5.6.1 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, 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 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 5.14). Use only Generac supplied
hardware. Substitution of parts may cause damage to
the screen or a loose fit to the tailpipe.
Advertisement
Table of Contents
