F.Verify that the installation jamb screws will fasten into solid wood. If not, insert solid filler at screw locations.

Note: Raise the lower sash to access the lower installation holes. There will be four or six installation holes in each jamb, depending on the window frame size.

High Performance Installations: Using a

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3 PREPARE THE WINDOW FOR INSTALLATION

A. Remove packing materials from the window.

Note: Check product for any cracks or penetrations in the frame. DO NOT install damaged windows.

 

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B. Install the sill adapter in the sill

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accessory groove.

Note: Use a rubber mallet to drive the sill adapter into the sill accessory groove. The vertical leg of the sill adapter may be cut to accommodate different sill angles.

4 SEALING AND FASTENING THE WINDOW

A.Test fit the window in the opening. With the window closed and locked, set the bottom of the window into the opening, then tilt the top into position.

B.Ensure the window is resting against the interior surface of the blind stops and the sill

adapter meets the original sill.

 

Note: The height of the window frame can be

 

increased by as much as 3/8" by applying the

 

head expander (included) to the window

 

frame. If more than 3/8" height adjustment

 

is required, install a continuous shim at

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the sill.

 

DO NOT use the head expander in High

Performance installations.

C.Apply the head expander (if required). For installation

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D. Drill two 1/4 weep holes INITHE SILL ADAPTER,OCATE THE HOLES vHFROM EACHE

end. The bottom of the weep hole must be at the bottom of the vertical leg of the sill adapter.

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Pella V784840 Prepare the Window for Installation, Sealing and Fastening the Window, Install the sill adapter in the sill
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V784840 specifications

The Pella V784840 is a premium window solution designed to enhance home aesthetics while providing exceptional performance and energy efficiency. This window model is part of Pella's commitment to innovation and quality, catering to homeowners looking for both style and functionality.

One of the main features of the Pella V784840 is its advanced glass technology. This window incorporates low-emissivity (Low-E) glass, which helps to reflect heat and UV rays while allowing natural light to enter the home. This ensures that interiors remain comfortable all year round, reducing reliance on heating and cooling systems.

The Pella V784840 is also equipped with an argon gas fill, which serves as an insulating barrier between the panes of glass. This gas fill further minimizes heat transfer, resulting in lower energy bills and a more comfortable living environment. The combination of Low-E glass and argon gas fill contributes to the window's impressive energy performance ratings, making it an eco-friendly choice for homeowners.

The design of the Pella V784840 is equally noteworthy. It features a sleek and modern aesthetic that easily complements various architectural styles. Available in multiple finishes and colors, these windows can be tailored to match the unique look of any home. Additionally, the windows are built using high-quality materials that ensure durability and resistance to the elements, contributing to the longevity of the investment.

Another characteristic of the Pella V784840 is its ease of operation. The window is designed with user-friendly features that allow for effortless opening and closing, making ventilation simple. The inclusion of tilt-in sashes also allows for easy cleaning from inside the home, adding to its practicality.

Security is prioritized in the design of the Pella V784840, which includes robust locking mechanisms to deter unauthorized access and provide peace of mind for homeowners.

In summary, the Pella V784840 stands out in the window market for its combination of innovative glass technologies, stylish design, energy efficiency, and user-friendly features. Whether replacing old windows or building a new home, the Pella V784840 offers a reliable, aesthetically pleasing, and efficient solution for any homeowner looking to enhance their living space.
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