Generac Power Systems 004709-0 - Manual (Page 25)

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Figure 2.2 – Typical Suspended Mounting
System
GENERATOR
SUPPORT FRAME
(MODEL 004718-0)
GENERATOR MOUNTING
HOLES FOR 5/16" - 18
BOLTS (6 PLACES)
2.1.4 GENERATOR RESTRAINT
Use four 5/16"-18 hardened steel bolts (Grade 5) to
fasten the generator to the supporting frame or the
support tubing. These bolts must pass through (a)
the generator mounting base, (b) the compartment
floor (if a compartment is used) and (c) the support-
ing framework (Figure 2.3). All bolts must be long
enough so that when tight, at least three threads
are visible past the retaining lock nuts. Refer to
"Generator Compartments" for the location of the
generator mounting holes.
Figure 2.3 – Typical Generator Restraint
2.2 GENERATOR COMPARTMENTS
Whether the generator set is being installed inside a
compartment specifically manufactured to house a
generator or inside a compartment that the installer
constructs, the compartment must meet certain spec-
ifications as outlined in the following sections:
2.2.1 COMPARTMENT SIZE
Plan the compartment size carefully. Provide a mini-
mum clearance of 1/2 inch (13 mm) on the front
and top, one (1) inch (25 mm) on the sides, and one
(1) inch (25 mm) from the back for air circulation
AFTER the compartment has been lined with metal
and sound insulation (Figure 2.4).
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Figure 2.4 – Clearances
1" Clearance
in Back
1/2" Clearance on Top
1" Each Side
1/2"
in Front
Insulation
Plywood
Compartment
18" Cleara
nce
Recom
mended
Bel
ow
(Minim
um 12")
NOTE:
Refer to “Figure 1.2 – Major Features and
Dimensions”.
2.2.2 COMPARTMENT CONSTRUCTION
The generator compartment should be either con-
structed of, or lined with, 26-gauge galvanized
steel.
NOTE:
Aluminum is NOT an acceptable alternative to
galvanized steel due to aluminum’s low melting
point.
If the compartment is lined with galvanized steel,
it may be constructed of any material. The manu-
facturer recommends that the compartment be
constructed of 1/2-inch thick plywood (not strand-
board), with the floor made of a double thickness
of 1/2-inch plywood with the grain of the wood at
cross section for added strength (Figure 2.5).
Figure 2.5 – Typical Compartment Construction
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Section 2 – Installation
Recreational Vehicle Generator