INSTALLATION INSTRUCTIONS

Product Information

Brand: FRIEDRICH

Product: RETURN AIR GRILLE / ACCESS PANEL

Model Numbers: VPRG4 / VPRG4R

Parts Included in this Kit

• VPRG4/VPRG4R Return Air Grille / Access Panel (58" Tall x 29" Wide)
• 2x Mounting Bracket (left and right)
• Mounting Screws

Parts Not Included in this Kit

• 25" x 20" Filter
• 5/32" Allen wrench for latch mechanism operation

Preparation

Frame and sheetrock the access hole to 27" wide and 55 3/4" tall. The bottom of the opening should be at the same level as the floor or subbase. The chassis must fit through this opening. The chassis is 23 1/8" wide and 32 1/4" or 47" tall (consult chassis specifications for actual dimensions).

Diagram Description: The document displays the Friedrich logo and product name. It lists parts included (grille panel, mounting brackets, screws) and parts not included (filter, Allen wrench). Preparation involves framing an access hole to specific dimensions. Visuals depict the VPRG4R Return Air Grille (Right Hinged), VPRG4 Return Air Grille (Left Hinged), a side bracket, and a 25" x 20" nominal filter (field supplied).

Installation Overview

Step 1: Determine the orientation of the door.

The VPRG4/VPRG4R Kit includes two mounting hinges. For the VPRG4, one hinge mounts to the left side of the opening, positioning the return air openings at the lower portion of the door (View A). The other hinge mounts to the right side of the opening, positioning the return air openings at the upper portion of the door (View B). This allows flexibility in door opening direction and can help with sound attenuation by placing the return air openings away from the unit's evaporator opening.

Diagram Description: View A shows a left-hinged setup with lower return air openings. View B shows a right-hinged setup with upper return air openings. A note clarifies the VPRG4R is right-hinged with lower openings.

Follow STEPS 2A through 6A for left side mounting (View A).

Follow STEPS 2B through 6B for right side mounting (View B).

Left Hinged Installation (Steps 2A - 6A)

Step 2A: Mounting the Side Bracket

Mount the Side Bracket to the left side of the wall opening. Ensure the Side Bracket is plumb (vertical). Secure with four #8 x 1 1/4" pan-head screws. Note: Hinge tabs must point upward.

Diagram Description: Visual guide showing the side bracket being mounted vertically to the left wall opening with screws.

Step 3A: Mount the Door on the Side Bracket

Install the door onto the Side Bracket. Ensure the access door has engaged the three tabs and is flush against the side mounting bracket.

Diagram Description: Visual guide showing the access door being attached to the side bracket, with a close-up showing the tabs engaging.

Step 4A: Prepare for Latch Bracket Installation

Close the door. Draw a temporary horizontal reference line on the wall adjacent to the center of the latch mounting hole on the door.

Diagram Description: Visual guide showing the door closed, with a pencil drawing a horizontal reference line on the wall next to the latch mounting hole.

Step 5A: Latch Bracket Installation

Attach the latch bracket to the opening, aligning the bottom of the bracket with the reference line. Use two #18 x 1 1/4 screws. Do not tighten yet.

Diagram Description: Visual guide showing the latch bracket being attached to the wall opening, aligned with the reference line, using two screws.

Step 6A: Installing Latch Bracket

Slide the bracket upward and tighten the mounting screws.

Diagram Description: Visual guide showing the latch bracket being slid upward and then secured by tightening screws.

Latch Mechanism:

Note: The latch mechanism is typically factory-mounted. This assembly is shown for reference. The latch arm is adjustable to provide a secure, rattle-free installation. Install the filter.

Diagram Description: Visuals of the latch mechanism from front and side views, showing the adjustable latch arm and orientation markings. It indicates that the filter should be installed.

Right Hinged Installation (Steps 2B - 6B)

Step 2B: Mounting the Side Bracket

Mount the Side Bracket to the right side of the wall opening. Ensure the Side Bracket is plumb (vertical). Secure with four #8 x 1 1/4" pan-head screws. Note: Hinge tabs must point upward.

Diagram Description: Visual guide showing the side bracket being mounted vertically to the right wall opening with screws.

Step 3B: Mount the Door on the Side Bracket

Install the door onto the Side Bracket. Ensure the access door has engaged the three tabs and is flush against the side mounting bracket.

Diagram Description: Visual guide showing the access door being attached to the side bracket, with a close-up showing the tabs engaging.

Step 4B: Prepare for Latch Bracket Installation

Close the door. Draw a temporary horizontal reference line on the wall adjacent to the center of the latch mounting hole on the door.

Diagram Description: Visual guide showing the door closed, with a pencil drawing a horizontal reference line on the wall next to the latch mounting hole.

Step 5B: Latch Bracket Installation

Attach the latch bracket to the opening, aligning the bottom of the bracket with the reference line. Use two #18 x 1 1/4 screws. Do not tighten yet.

Diagram Description: Visual guide showing the latch bracket being attached to the wall opening, aligned with the reference line, using two screws.

Step 6B: Installing Latch Bracket

Slide the bracket downward and tighten the mounting screws.

Diagram Description: Visual guide showing the latch bracket being slid downward and then secured by tightening screws.

Latch Mechanism:

Note: The latch mechanism is typically factory-mounted. This assembly is shown for reference. The latch arm is adjustable to provide a secure, rattle-free installation. Install the filter.

Diagram Description: Visuals of the latch mechanism from front and side views, showing the adjustable latch arm and orientation markings. It indicates that the filter should be installed.