Site Selection and Preparation
Installation Guidelines For 50 Hz Air-Cooled Generator Sets
19
Transportation Recommendations
Use a suitable cart or equipment to carry the generator
set, including wooden pallet, to the installation site. Place
cardboard between cart and generator set to prevent any
damage or scratches to generator set.
Do not lift, carry, or move generator set by grasping
the louvers. Doing so may bend or damage the sheet
metal.
Suitable Mounting Surface
Select non-combustible base type as desired or as
required by local laws or codes. The generator set is typ-
ically placed on pea gravel, crushed stone, a concrete
pad, or a preformed pad.
See
Prepare a rectangular area approxi-
mately 127 mm (5 in) thick (A) and approximately 72.6
mm (3 in) longer and wider (B) than the generator set on
all sides.
Figure 3-4. Pea Gravel or Crushed Stone
Concrete pads must be appropriately sized in accor-
dance with national, state, or local building codes.
Verify surface where generator set will be mounted is
compacted, leveled, and will not erode over time. Gener-
ator set must be level within 13 mm (0.5) in all around.
Placement on Roofs, Platforms, and
Other Supporting Structures
Where required to place generator on a roof, platform,
deck, or other supporting structure, generator must be
placed in accordance with the requirements in NFPA 37,
Section 4.1.3. Generator can be located 457 mm (18 in)
from structures having combustible walls and 1.52 m (5
ft) from any operable opening in the structure. Surface
beneath the generator and beyond must be noncombus-
tible to a minimum distance of 30.5 cm (12 in). Contact
local Building Inspection Department or fire department
to determine which noncombustible materials are
approved for installation.
B
A
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