Generac Power Systems 004700-00 User Manual

  

23

• The installer must make certain that the selected 

location will permit adequate cooling and ventilat-
ing airflow to be supplied.

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 Section 
2.2 for the location of the generator mounting holes.

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:

Plan the compartment size carefully. Provide a mini-
mum clearance of 1/2 inch (13 mm) on the front and 
top, 1/2 inch (25 mm) on the sides, and 1/2 inch (13 
mm) from the back for air circulation AFTER the 
compartment has been lined with metal and sound 
insulation (Figure 2.4).

‹

‹

NOTE:

Refer to “Figure 1.2 – Major Features and 
Dimensions”.

•  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).

• 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 explo-
sive vapors from entering the vehicle interior.

NOTE:

Caulking must be done so that the caulking mate-
rial will stay in place permanently. Pressing such 
materials as putty tape onto joints and seams is 
NOT acceptable. A high quality silicone rubber base 
sealant is recommended.

‹