Pella Impervia 80YW0102 - Manual (Page 7)

Interior
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Double-Hung & Single-Hung - If additional installation
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through both the interior and exterior walls of the
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wall only of the frame. DO NOT penetrate the exterior
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AWNING AND CASEMENT ONLY
+ From the exterior, continue placing shims at each
pre-drilled hole as needed to plum and square the
window. Check window for squareness by making sure
the diagonal measurements from corner to corner of the
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the frame. Screws are installed from the interior. Finish
inserting the top screw in each jamb.
For Awning and Casement: See Awning/Casement Shim
and Fastener Guide.
Note: DO NOT shim above the window. DO NOT
over shim!
I. Check operation before applying the insulating foam
sealant in case adjustments need to be made.
Drive screws per the Awning/Casement Shim and Fastener Guide.
AWNING/CASEMENT SHIM and FASTENER PLACEMENT GUIDE
Number of factory drilled fastener
locations may vary depending on
size of unit(s).
= Indicates typical locations of
factory drilled anchor holes where
screws and shims are required.
= Indicates location where
installation screws are optional.
At combination
mullion joints:
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hole through the
mullion plates at
the factory drilled
anchor holes prior
to inserting screws.
<42" Frame Width
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>42" Frame Width
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Exterior Exterior
Double-Hung Single-Hung
3/8” 3/8”
5/32” 5/32”