ao REPLACEMENT OF AN
(J LiPPERT EXTERIOR SIDE WINDOW

WINDOWS

Purpose

This document outlines the procedure for replacing any series exterior side window.

Safety

Read and understand all instructions before installing or operating this product. Adhere to all safety labels.

The “CAUTION” symbol above is a sign that a safety risk is involved and may cause personal injury
and/or product or property damage if not safely adhered to and within the parameters set forth
in this manual.

Always wear eye protection when performing service, maintenance or installation procedures.
Other safety equipment to consider would be hearing protection, gloves and possibly a full face
shield, depending on the nature of the task.

Moving parts can pinch, crush or cut. Keep clear and use caution.
Resources Required

+ 1 to 2 persons, depending on task + Phillips screwdriver
+ Cordless or electric drill or screw gun + Ladder

+ Appropriate drive bits + Plastic putty knife

+ Installation tape or putty tape + Mineral spirits

+ Flat head screwdriver + Rubbing alcohol

Rev: 03.22.21 CCD-0003593

ae REPLACEMENT OF AN
(J uiPPERT EXTERIOR SIDE WINDOW

WINDOWS

Removal

Remove the screws securing the trim ring on the interior side of the window. Retain the trim ring and
screws for re-installation.

Open the window, if possible, to make it easier to hold during removal.

On the exterior side of the window, use a plastic putty knife (Fig. 1A) to carefully break the seal around
the outside of the window frame (Fig. 1B).

4. Scrape off any old sealant with the putty knife.
5. Clean any residual sealant with mineral spirits then clean the perimeter of the opening with rubbing
alcohol to make sure the surface is clean before installation.

Rev: 03.22.21 CCD-0003593

REPLACEMENT OF AN
EXTERIOR SIDE WINDOW

WINDOWS

CJ LiPPERT

Preparation

Rough Opening

Improper rough openings, protrusions, uneven surfaces or jagged edges can impede proper
seating of the window which can lead to leaks.

The tolerance for the manufacturer's rough opening is +/- Ye". The opening must be square, level and plumb.
The opening must be free from protrusions, uneven surfaces or jagged edges.

Walls and Radius

Installation on sloped walls can lead to water penetrating into the unit.

Lippert windows are designed to be installed on vertical walls. Installation on sloped walls can lead to water
penetrating into the unit.
The radius corner block must be 3 6" for a 3 Ye" radius window and 4 346" for a 4" radius window.

NOTE: An oversized radius block can cause the window to be tight in the corners and can damage the
window. An undersized radius block can create a gap and cause installation leaks in the radius.

The exterior surface around the window opening must be smooth. If shims are used around the opening,
they MUST be used around the entire perimeter of the window including the radius. Any raised ribs or splice
joints in siding must be smooth to ensure a proper seal and window function.

Window Preparation
+ If there are dents present on the window flange, they must be straightened prior to application of
installation or putty tape.
+ It is recommended that window flange is clean and free of debris before applying installation or putty tape.
+ Installation tape must be installed on the outer edge of the window flange to maximize contact surface area

between foam tape and wall.

Make sure the installation or putty tape is not stretched across the window as it will roll or fold in
the radius, which can lead to installation leaks.

+ It is highly recommended that the installation or putty tape is not stretched across the window as it will roll
or fold in the radius, which can lead to installation leaks.
+ The applied installation or foam tape seam must overlap at the bottom of the window.

Rev: 03.22.21 CCD-0003593

a REPLACEMENT OF AN
(J uiPPERT EXTERIOR SIDE WINDOW

WINDOWS

Installation

Installation clips (Fig. 2A) must be in place for proper centering within the opening. There must be two clips
on the bottom and one clip on each jamb of the window. If the width clearance is tight, only one clip from
one jamb may be removed. If a jamb clip is removed, use care to make sure there is proper window-to-wall
sealing on the unit.

NOTE: Removal of installation clips is NOT recommended.

The window should be installed into the opening from the exterior of the unit without the use of any tools.
If resistance is experienced, the window should NOT be forced into the opening. Remove the window and
verify that the opening is the correct size and meets the requirements for installation. See the Preparation
section.

NOTE: The window should be in the closed position during installation.

ACAUTION

Make sure the fixed pane of a horizontal slider window is installed toward the front of the unit. If
the window is not installed correctly, there is the potential for water infiltration past the mullion bar
seal, which could cause damage to the unit.

The fixed pane on a horizontal slider window must be installed toward the front of the unit.

Rev: 03.22.21 CCD-0003593

ao REPLACEMENT OF AN
(J LiPPERT EXTERIOR SIDE WINDOW

WINDOWS

Trim Ring Installation
1. Insert the trim ring (Fig. 3A) into the opening from the interior of the unit. The trim ring should fit

inside the opening around the entire perimeter. If there is interference, remove the trim ring and check
for correct rough opening size.
Make sure the part of the groove the screws get inserted into is visible through the trim ring holes
along the perimeter.
Install eight #8 screws following figure 3 screw pattern (Fig. 3, numbers 1-8). Partially tighten these
screws. Driving the screws all the way can cause a stripped-out or broken screw head.
After the eight screws are partially installed, follow the screw pattern (Fig. 3, numbers 1-8) and
completely tighten the screws.
Install and completely tighten the screws in the remaining trim ring holes, going all the way around
the perimeter of the window.

Rev: 03.22.21 CCD-0003593