Generator Compartments - Generac Power Systems quietpact 85d Owner's Manual

2.1.4 GENERATOR RESTRAINT
Use four 3/8"-16 hardened steel bolts (Grade 5) to fasten the genera-
tor 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 supporting framework
(Figure 2.2). All bolts must be long enough so that, when tight,
they engage at least 3/8" of an inch [9.5 millimeters]. Refer to the
"Generator Compartments" section for the location of the generator
mounting holes.
Figure 2.2 – 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 com-
partment that the installer constructs, the compartment must meet
certain specifications, as outlined in the following sections:
2.2.1 COMPARTMENT CONSTRUCTION
• The generator compartment should be either constructed of, or
lined with, 26-gauge galvanized steel.
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 manufacturer recommends
that the compartment be constructed of 1/2-inch thick plywood
(not strandboard), with the floor made of a double thickness of
1/2-inch plywood, having the grain of the wood at cross section
for added strength (Figure 2.3).
NOTE:
Figure 2.3 – Typical Compartment Construction
• If constructing a compartment, line the exterior (underside) of
the compartment floor with 26-gauge galvanized steel.
• All seams, splices, and joints of the compartment walls (unless
vapor-tight by design) should be caulked to prevent poisonous,
flammable, or explosive vapors from entering the vehicle interior.
Caulking must be done so that the caulking material will stay in
place permanently. Pressing materials such as, putty tape, onto
joints and seams is NOT acceptable. A high-quality silicone rub-
ber base sealant is recommended.
• Holes and openings made in the compartment walls to allow for
the passage of electrical conduit, conductors, hoses, cables,
etc., into the vehicle living area must be sealed vapor-tight with
silicone rubber base sealant.
• If a flexible metal conduit is used, it must be sealed internally at
the end, where it terminates inside the compartment's electrical
junction box.
Flexible metal conduit, due to its unique construction, is NOT
vapor-tight along its entire length.
Installation
NOTE:
NOTE:
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