Pella 808F0105 warranty Exterior

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3 SEALING AND FASTENING THE WINDOW (CONTINUED)

F.Place shims approximately 5" up from the bottom of window to plumb and square the window. Check for

squareness by making sure the diagonal measurement

 

from corner to corner is within 1/16" in both directions. Also

 

place shims in line with the jamb hole near the center of the

 

unit. Trim shims back so they recessed back 1/4” - 1/2” from

3F

the interior face of the window frame.

 

For windows over 53" tall: Place two additional shims along each side of the window, evenly spacing them between the top and bottom shims and the midpoint shim.

G. Check the new sill to confirm it is flat and level using a level or straight edge along the exterior edge of the new sill. If the sill is bowed (humped) screen fit issues may result. Note: To Resolve Sill Bow (hump):

Push Down on the center of the sill to seat the adjustable sill adapter.

Check the shims at the sill for proper location. (See Step 2B).

If the sill adapter is touching the existing (old) sill, remove the sill adapter to relieve pressure on the new sill.

H.Cut the checkrail band at each jamb and remove. Check jambs for straightness by measuring the top, middle and bottom of the frame. Widths should be within 1/16".

Designer Series only: After cutting the checkrail band, push the remaining tails of the band into the jambliner 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.Finish driving the top installation screws through the wood frame jamb, ensuring the head of the screw is flush with the surface of the wood frame to avoid interference with the balance assembly.

K.Raise the bottom sash to install the lower two installation screws. Drive the installation screws below the surface of the wood frame.

EXTERIOR

3G

3I

Architect Series Units: The lower installation holes are located in the interior balance channel near the sill. These holes are not pre-drilled through the wood frame. Drive the installation screws through the wood frame jamb, ensuring the head of the screw is below the surface of the wood frame to avoid interference with the balance assembly.

L.Check window operation. Open and close the window a few times to check for proper operation. Make sure the window will tilt correctly.

Designer Series Only: After adjustments are completed, install plastic plugs in the jamb liner holes.

Note: If there are any problems with the operation of the window, recheck the shim locations and adjust for plumb and square.

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Contents YOU will Need to Supply DOUBLE-HUNG Sash Removal Tape Prepare the OpeningBlind stop Head blind Sealing and Fastening the WindowStop BlindExterior Exterior Seal Interior SealExterior Finish Interior FinishCare and Maintenance Important Notice