Generac Power Systems 004700-00 owner manual Generator Compartments, ‹ 2.1.4 Generator Restraint

Section 2 – Installation

Recreational Vehicle Generator

• The installer must make certain that the selected		NOTE:
location will permit adequate cooling and ventilat-	Refer to “Figure	1.2 – Major Features and
ing airflow to be supplied.
	Dimensions”.

‹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 Section

2.2for the location of the generator mounting holes.

Figure 2.3 – Typical Generator Restraint

‹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

2.2GENERATOR 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, 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).

Figure 2.4 – Clearances

• If constructing	a compartment, line the exterior
(underside) of	the compartment floor with 26-
gauge galvanized steel.

Plywood

Compartment

1/2" Clearance on Top

Insulation	1/2"
	in Front

	1" Clearance
		in Back
1" Each Side
				ended
			Recomm
	Cleara	(Minimum		12")
	nce
18"	ow
	Bel

• 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.

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