Generac Power Systems 009600-4 - Manual (Page 33)

Section 6 - Installation INSTALLATION
PRIMEPACT 66G and 66LP Recreational Vehicle Generators
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 unim­
proved 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,
• 6.6.2 TYPE OF EXHAUST SYSTEM
l\vo types of exhaust systems for PRIMEPACT series
generators are available ifrom Generac. They include the
following:
• “Out-the-bottorn” exhaust system dimensions are
1 5/16” O.D., model 9742.
• “Out-the-side” exhaust system dimensions are
1” O.D., 18 gauge, models 9743 and 9326.
NOTE:
No matter what type of exhaust kit best fits your
recreational vehicle, the mounting base has open­
ings for either “bottom-out” or “side-out” exhaust
systems. Use the cover plate provided with the gen­
erator to cover the opening you do NOT use.
• 6.6.3 EXHAUST SYSTEM SAFETY * •
• Maintain a clearance of at least 3 inches (76 mm)
between exliaust system parts and any combustible
material (such as wood, felt, cotton, organic fibers or
other like material). If you cannot maintain the 3-iiich
(76 mm) clearance, locate, insulate or shield the
exhaust part(s) so that the temperature of any com­
bustible 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 com­
partment 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 sys­
tem
parts is the responsibility of the person(s)
Installing such unauthorized parts.
• Do not terminate the exhaust system under any open­
ing, window or vent that can be opened or is not per­
manently 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 regulations.
6.7 ELECTRICAL CONNECTIONS
Be sure to read Section 5.6 on Page 20.
The following general rules apply to electrical connec­
tions in a recreational vehicle:
• Qualified electricians who are familiar with applica­
ble 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 Ixorn road
shock.
• Wiling must be of adequate size, have approved irisu-
lative 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.
• 6.7.1 ELECTRICAL JUNCTION BOX
Install an approved, square electrical junction box witli
a blank cover on the interior or exterior wall of the area
you plan to install the generator (NOT on the generator).
Route the generator's AC output leads into this junction
box through approved flexible conduit. This is the point
of first termination for generator AC output leads.
• 6.7.2 WIRING ________
• Wiring should be of stranded copper to reduce the
chance that vibration may cause breakage.
• Wire gauge size should be large enough to handle at
least 115 percent of the installed generator's rated
maximum current.
• If neutral conductors are used, they must be the same
size as other leg wires.
• Route power supply conductors from generator AC
output leads T1 (red), T2 (white), T3 (black) and the
green ground wire through approved flexible conduit
to the electrical junction box on the compartment
wall.
If flexible metal conduit is used between the genera­
tor and the compartment junction box, the conduU
end that terminates the compartment junction box
must be vapor-sealed. Flexible metal conduit is NOT
vapor tight along its entire length.
CSenerac* Power Systems, Inc, 31