GSI PNEG-268 User Manual

Instructions

1004 East Illinois Street • Assumption, IL 62510 • 217-226-4421

Auto-Vent Installation

Assembly and Installation Instructions

The following instructions are for assembling and installing the auto-vent. First, check the packing list to
ensure all components have been shipped. The unit is easiest assembled in the upside down position
as shown in Figure 1. Roof vent location should be as shown in Figure 5.

Assembly

1. Take all parts out of the shipping box and check if all parts are present.

2. Turn one (1) roof vent housing (MIS-6778) upside down. (See Figure 1.)

3. Insert 5/16" x 1-1/4" bin bolt with neoprene washer through hole in the side of roof vent housing. Place
jamb nut onto the bolt and tighten. (See Figure 1.)

4. Slide flap assembly (MIS-6777) onto bolt. The bolt should slide through hole in the flap assembly
bracket. Install with curvature cupped upward and the brackets in the position as shown.

5. Insert 5/16" x 1-1/4" bin bolt with neoprene washer through the other side of the roof vent, through
jamb nut and other flap assembly bracket. Tighten nut against vent housing side.

6. Apply a bead of tube caulking around three (3) housing sides of the roof vent where it meets the
hold down angle.

7. Place hold down angle (MIS-4404) on the assembled roof vent. The wide end of the hold down angle
must face vent discharge. Once aligned, screw nine (9) #10 self-drilling (S-280) screws throu gh the
roof housing and into the hold down angle. (See Figure 2 and Figure 3.)

Figure 1 Figure 2

Date: 06-02-08 PNEG-268

Printed in the U.S.A.
Copyright © 2008 by GSI Group
www.gsiag.com

PNEG-268

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Auto-Vent Installation

Installation

8. If the roof sheet does not have a prepunched hole for the roof vent, a hole must be cut. The cut hole
should match the roof vent. The hole inside edge should be approximately 15" from the eave.

(See Figure 5.)

9. Place the three (3) foam strips on roof sheet, as shown in Figure 4. Position roof vent over foam
strips and bolt down using 5/16" x 3/4" bin bolts and 5/16" flange nuts. (NOTE: See instructions

below for lower two (2) bolts of vent.)

Figure 3 Figure 4

NOTE: Install bolts for these two (2) holes

with the bolt head and neoprene washer to
the underneath side of the roof sheet and the
5/16" flange nut against the vent hold down
angle. Caulk holes.

Figure 5

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