Installation Guide

Site Selection and Preparation
12 Installation Guidelines For Australian 50 Hz Air-Cooled Generators
Install the generator set, in its protective enclosure, out-
doors where adequate cooling and ventilating air is
always available (Figure 3-1). Consider these factors:
• The installation of the generator must comply
strictly with ICC IFGC, NFPA 37, NFPA 54, NFPA
58, and NFPA 70 standards.
• Install the unit where air inlet and outlet openings
will not become obstructed by leaves, grass, snow,
etc. If prevailing winds will cause blowing or drift-
ing, consider using a windbreak to protect the unit.
• Install the generator on high ground where water
levels will not rise and endanger it. This unit should
not operate in, or be subjected to, standing water.
• Allow sufficient room on all sides of the generator
for maintenance and servicing. This unit must be
installed in accordance with any local, state, or
national codes for minimum distances from other
structures.
• Clearance from the ends and front of the generator
must be 0.91 m (3 ft). This includes shrubs,
bushes, and trees. Clearance from the back of the
generator must be a minimum of 45.7 cm (18 in).
Clearance at the top should be a minimum of 1.52
m (5 ft) from any structure, overhang, or projec-
tions from the wall.
IMPORTANT NOTE: Mechanical and gravity
outdoor air intake openings for HVAC supply
air systems shall be located not less than 10
feet (3048mm) horizontally from the generator
enclosure. See Section 401 in the ICC Mechani-
cal Code for any additional requirements.
• DO NOT install under wooden decks or structures
unless there is at least 1.52 m (5 ft) of clearance
above the generator.
• DO NOT install the unit unless there is at least 1.52
m (5 ft) of clearance between the generator
exhaust port and any type of air conditioning unit.
• Install the unit where rain gutter downspouts, roof
run-off, landscape irrigation, water sprinklers, or
sump pump discharge does not flood the unit or
spray the enclosure, including any air inlet or outlet
openings.
• Install the unit where services will not be affected
or obstructed, including concealed, underground,
or covered services such as electrical, fuel, phone,
air conditioning, or irrigation. This could affect
warranty coverage.
• Where strong prevailing winds blow from one
direction, face the generator air inlet openings to
the prevailing winds.
• Install the generator as close as possible to the fuel
supply to reduce the length of piping. REMEMBER
THAT LAWS OR CODES MAY REGULATE THE
DISTANCE AND LOCATION. In the absence of
local codes regarding placement or clearance, we
recommend following these guidelines:
– Install the generator as close as possible to the
transfer switch. REMEMBER THAT LAWS OR
CODES MAY REGULATE THE DISTANCE AND
LOCATION.
– The generator must be installed on a level
surface. The generator must be level within 13
mm (0.5 in) all around.
– The generator is typically placed on pea gravel,
compacted soil, crushed stone, or a concrete
pad. Check local codes to see what type is
required. If a concrete pad is required, all appli-
cable codes should be followed.
Verify Wi-Fi Range
Refer to the Wi-Fi manual shipped with the unit if
planning to use the Wi-Fi feature.
Installation Guidelines for Stationary Air-Cooled
Generators
See Figure 3-1. NFPA 37 is the The National Fire Protec-
tion Association’s standard for the installation and use of
stationary combustion engines. Its requirements limit the
spacing of an enclosed generator set from a structure or
wall.
NFPA 37, Section 4.1.4, Engines Located Outdoors:
Engines, and their weatherproof housings if provided,
that are installed outdoors shall be located at least 1.52
m (5 ft) from openings in walls and at least 1.52 m (5 ft)
from structures having combustible walls. A minimum
separation shall not be required where the following
conditions exist:
1. The adjacent wall of the structure has a fire resis-
tance rating of at least one hour.
2. The weatherproof enclosure is constructed of
noncombustible materials and it has been
demonstrated that a fire within the enclosure will
not ignite combustible materials outside the
enclosure.
Annex A — Explanatory Material
A4.1.4 (2) Means of demonstrating compliance are by
means of full scale fire test or by calculation procedures.
Because of the limited spaces that are frequently
available for installation, it has become apparent that
exception (2) would be beneficial for many residential
and commercial installations. With that in mind, the
manufacturer contracted with an independent testing
laboratory to run full scale fire tests to assure that the
enclosure will not ignite combustible materials outside
the enclosure.