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Part Number: 808F0105

© 2011 Pella Corporation

REMEMBER TO USE APPROPRIATE PERSONAL PROTECTIVE EQUIPMENT.

INSTALLATION INSTRUCTION - 

INSTRUCCIONES DE INSTALACION 

PELLA

®

 PRECISION FIT AND RENOVATION POCKET 

REPLACEMENT DOUBLE-HUNG VENT WINDOW

Always read the Pella® Limited Warranty before purchasing or installing Pella 

products. By installing this product, you are acknowledging that this Limited Warranty 

is part of the terms of the sale. Failure to comply with all Pella installation and maintenance 

instructions may void your Pella product warranty. See Limited Warranty for complete details at 

http://warranty.pella.com.

INTERIOR

Flashing tape

Checkrail

YOU WILL NEED TO SUPPLY:

TOOLS REQUIRED:

• Cedar or Impervious shims/spacers (12 to 20)

• Closed cell foam backer rod/sealant backer (12 to 30 

ft.)

• Pella

®

 SmartFlash

 foil backed butyl window  

and door flashing tape or equivalent

• High quality exterior grade polyurethane or silicone 

sealant (1 tube per window)

• Great Stuff ™ Window and Door Insulating Foam 

Sealant by the Dow Chemical Company or equivalent 
low pressure polyurethane window and door foam - 

  DO NOT use high pressure or latex foams.

• Tape measure

• Level

• Hammer

• Utility knife

• Pry bar

• Sealant gun

• Screwdrivers  

(#2 Phillips and Flat blade)

• Putty knife

• Wood chisel

• Drill

Installation will require two or more persons for safety reasons.

SEALANT

SEALANT

Important!

 

The Pella Replacement Window is designed to replace older style double-hung 

windows. The original window frame will remain in place and only the existing sash will be 

removed. Read these instructions thoroughly before beginning. Failure to install as recommended 

will void any warranty, express or implied. For types of installation other than shown, contact your 

local Pella representative or 

visit 

http://www.pella.com.

Summary of Contents for 808F0105

Page 1: ...0 ft Pella SmartFlash foil backed butyl window and door flashing tape or equivalent High quality exterior grade polyurethane or silicone sealant 1 tube per window Great Stuff Window and Door Insulating Foam Sealant by the Dow Chemical Company or equivalent low pressure polyurethane window and door foam DO NOT use high pressure or latex foams Tape measure Level Hammer Utility knife Pry bar Sealant ...

Page 2: ...opening and window dimensions prior to removing the existing window sash A Score paint or varnish along interior sash stops with a sharp utility knife Remove the interior sash stops at jambs sides and head top using a putty knife and pry bar B Cut the balance cords on the bottom sash and lift out the sash Allow weights to fall to the bottom of the weight pocket 1 DOUBLE HUNG SASH REMOVAL C Remove ...

Page 3: ...ote Improper placement of shims may result in bowed humped sill C Remove plastic wrap cardboard packaging and sill packaging board from window DO NOT cut the checkrail bands or remove plastic shipping spacers located between the window sash and frame The shipping spacers will help keep the window square during installation Note If screens grilles or hardware are removed from the window at this tim...

Page 4: ...of the window in first and tilt the top into place Make sure the window is centered in the opening and is pressed firmly against the exterior blind stops E Place a shim at each of the top corners in line with the pre punched holes and partially insert 2 1 2 screws provided This will hold the window in place while shimming it plumb and square Trim shims back so they recessed back 1 4 1 2 from the i...

Page 5: ... hole I Adjust the screw jacks if required With a flat blade screwdriver turn clockwise to move the frame toward the sash Architect Series Units The jamb jack holes are located in the interior balance channel near the checkrail the lower sash must be tilted in to adjust the jamb jack Note If the frame and sash are too tight and are not adjustable using the jamb jacks the window is over shimmed J F...

Page 6: ...ing and apply a 1 deep bead of foam This will allow room for expansion of the foam and will minimize squeeze out Apply sealant across the interior surface of the shims to create a continuous seal Follow foam manufacturer s instructions Note It may be necessary to squeeze the end of the tube with pliers to be able to insert into the space between the new and existing window frame DO NOT completely ...

Page 7: ...ed Warranty On casement and awnings it is optional to paint stain or finish the vertical and horizontal sash edges On single hung and double hung do not paint stain or finish the vertical sash edges any finish on the vertical sash edges may cause the sash to stick it is optional to paint stain or finish the horizontal sash edges On patio doors it is optional to paint stain or finish the vertical a...

Page 8: ...lity of all building components including the use of Pella products as well as the design and installation of flashing and sealing systems are the responsibility of the Buyer or User the architect contractor installer or other construction professional and are not the responsibility of Pella Pella products should not be used in barrier wall systems which do not allow for proper management of moist...

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