Pella 80GY0102 - Manual (Page 7)

B. Drill 1/8" x 1" deep pilot holes into the rough framing through the clearance holes in the
unit frame.
C. Fasten the window to the opening by driving #10 x 3-1/2" corrosion resistant wood screws
into each of the pre-drilled clearance holes.
Note: Screws MUST be driven straight or angled slightly toward the exterior to prevent
interference with the lock mechanism. Drive the screws until snug but DO NOT over-
tighten the screws. DO NOT bend or bow the unit frame.
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6
SECURING THE WINDOW -
INSTALLATION CLIP METHOD
A. Fasten the window to the opening by driving two #8 x 1-1/4"
corrosion resistant screws into the pre-punched holes in the clips.
If clips are bent and fastened to the interior stud/block, install the
screws as close to the bend as possible.
Note: DO NOT shim above the window. For masonry openings
use two 3/16" x 1-1/2" masonry screws per clip. Pre-drill the
masonry before attempting to drive the screws in.
*/5&3*03
"
7
INTERIOR SEAL
Caution: Ensure use of low pressure polyurethane window and door insulating
foams and strictly follow the foam manufacturer’s recommendations for
application. Use of high pressure foams or improper application of the
foam may cause the window frame to bow and hinder operation.
*OUFSJPS
"
A. Apply insulating foam sealant. From the interior, insert the nozzle
of the applicator approximately 1" deep into the space between the
window and the rough opening and apply a 1" deep bead of foam.
This will allow room for expansion of the foam and will minimize
squeeze out. If using foam other than Great Stuff ™ Window and
Door Insulating Foam Sealant by the Dow Chemical Company,
allow the foam to cure completely (usually 8 to 24 hours) before
proceeding to the next step.
Note: DO NOT completely fill the space from the back of the fin
to the interior face of the opening.
B. Check window operation (vent units only) by opening and closing the window.
Note: If the window does not operate correctly, check to make sure it is still plumb, level,
square and that the sides are not bowed. If adjustments are required, remove the foam
with a serrated knife. Adjust the shims, and reapply the insulating foam sealant.