Installation Guide

Site Selection and Preparation
Installation Guidelines For Australian 50 Hz Air-Cooled Generators 13
NOTE: See Figure 3-2. Southwest Research Institute
testing approves 45.7 cm (18 in) installation minimum
from structure (C). Southwest Research Institute is a
nationally recognized third party testing and listing
agency in the United States.
The criteria was to determine the worst case fire scenario
within the generator and to determine the ignitability of
items outside the engine enclosure at various distances.
The enclosure is constructed of non-combustible materi-
als, and the results and conclusions from the indepen-
dent testing lab indicated that any fire within the
generator enclosure would not pose any ignition risk to
nearby combustibles or structures, with or without fire
service personnel response.
Figure 3-2. Southwest Research Institute Marking
http://www2.swri.org/www2/listprod
DocumentSelection.asp?ProductID=973&IndustryID=2
Based on this testing and the requirements of NFPA 37,
Sec 4.1.4, the guidelines for installation of the generators
listed above are changed to 45.7 cm (18 in) from the
back side of the generator to a stationary wall or building
(C). For adequate maintenance and airflow clearance,
the area above the generator should be at least 1.52 m (5
ft) with a minimum of 0.91 m (3 ft) at the front and ends of
the enclosure. This includes trees, shrubs, and bushes.
Vegetation not in compliance with these clearance
parameters could obstruct air flow. In addition, exhaust
fumes from the generator could inhibit plant growth. See
Figure 3-1 and the installation drawing within the owner’s
manual for details.
NOTE: If the generator is not set to OFF mode, it can
crank and start as soon as the battery cables are con-
nected. If the utility power supply is not turned off, spark-
ing can occur at the battery posts and cause an
explosion.
Site Preparation
• Locate the mounting area as close as possible to
the transfer switch and fuel supply.
• Leave adequate room around the area for service
access (check local code), and place high enough
to keep rising water from reaching the generator.
• Choose an open space that will provide adequate
and unobstructed airflow.
• Place the unit so air vents will not become clogged
with leaves, grass, snow, or debris. Verify exhaust
fumes will not enter any building through eaves,
windows, ventilation fans, or other air intakes (see
Site Selection).
• Select the type of base, such as—but not limited
to—compacted soil, gravel, or concrete, as desired
or as required by local laws or codes. Verify your
local requirements before selecting.
Material Sufficient for Level Installation
See Figure 3-3. Prepare a rectangular area approxi-
mately 127 mm (5 in) deep (A) and approximately 152
mm (6 in) longer and wider (B) than the footprint of the
generator. Verify that the surface where the generator will
be mounted is compacted, leveled, and will not erode
over time. A concrete pad can be poured if desired or
required.
002158
Automatic start-up. Disconnect utility power and
render unit inoperable before working on unit.
Failure to do so will result in death or serious injury.
(000191)
DANGER
Asphyxiation. Running engines produce
carbon monoxide, a colorless, odorless,
poisonous gas. Carbon monoxide, if not
avoided, will result in death or serious injury.
(000103)
DANGER