Pella V784840 User manual

Installation Instructions for Typical Wood Frame Construction.
These instructions were developed and tested for use with typical wood frame wall construction in
a wall system designed to manage water. These instructions are not to be used with any other
construction method. Installation instructions for use with other construction methods may be
obtained from Pella®Corporation or a local Pella retailer. Building designs, construction methods,
building materials, and site conditions unique to your project may require an installation method
different from these instructions and additional care. Determining the appropriate installation method
is the responsibility of you, your architect, or construction professional.
Handling and Storage:
Provide full support under the framework while storing, moving and installing this product. DO
NOT lift the product by the head member only. Remove the plastic shipping material prior to storing
or installing the product. DO NOT store in direct sunlight. Allow sufficient spacing between products
for ventilation.
REMEMBER TO USE APPROPRIATE
PERSONAL PROTECTIVE EQUIPMENT.
Always read the Vinyl Window and Door Limited Warranty before purchasing or
installing Vinyl Windows and Doors manufactured by Pella Corporation. 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.
INSTALLATION INSTRUCTION - INSTRUCCIONES DE INSTALACION
FOR DOUBLE-HUNG VENT REPLACEMENT WINDOW
Part Number: V784840
©Pella Corporation 2007
Vinyl Windows and Doors
Manufactured by Pella Corporation
Lea las instrucciones en español en el reverso.
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s'REAT3TUFF™Window and Door Insulating Foam
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LOWPRESSUREPOLYURETHANEWINDOWANDDOORFOAM
$/./4USEHIGHPRESSUREORLATEXFOAMS
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Installation will require two or
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sXPINEFORINTERIORFRAMESTOPS
SEALANT
SEALANT

A. Score paint or varnish along
interior sash stops with a sharp
utility knife. Carefully remove
INTERIORSASHSTOPSATJAMBSSIDES
ANDHEADTOPUSINGPUTTYKNIFE
and prybar. Set aside to reuse.
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.
C. Remove the parting stops. There
may be a small wedge of wood at
the bottom of the upper sash that is
NEXTTOTHEPARTINGSTOPS4OMAKE
it easier to remove the parting stop,
use a chisel to knock off the wedge.
D. Lower the top sash and cut the
balance cords allowing the balance
weights to fall into the weight
pocket. Remove the top sash. Be
CAREFULNOTTODAMAGETHEEXTERIOR
blind stop.
E. Remove the balance cord pulleys.
Unscrew and remove balance cord
pulleys. If they cannot be removed
easily, drive them into the jamb
using a hammer.
1REMOVING EXISTING SASH
Caution: Many windows in older homes are painted with lead-based paint. Removal of old
windows may disturb this paint. Proper precautions must be taken to minimize exposure to dust
and debris. Consult state or local authorities for more information. Use appropriate personal
protective equipment.
A. Inspect the existing window frame and repair or replace any defective or rotted wood parts.
-AKESURETHEEXTERIORBLINDSTOPSARESOUND
B. Insulate the weight pocket with loose fill insulation.
Note: Use of expanding/aerosol foam insulation is not recommended.
C. If applicable,INSTALLPRElNISHEDMETALmASHINGORTRIMTOCOVEREXISTINGFRAMESILLANDTHE
EXTERIORTRIMATTHEHEADANDJAMBS
D. Clean the openingOFANYDIRTDEBRISOREXCESSOLDPAINTBEFOREPROCEEDING
Note: Many windows in older homes are painted with lead-based paint. See caution note
in Step 1.
2OPENING PREPARATION
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E. Ensure existing sill is level.
Note: If shimming of the sill is necessary, use a continuous shim that extends across the
entire width of the sill.

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4SEALING AND FASTENING THE WINDOW
3PREPARE 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
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.
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
the sill.
DO NOT use the head expander in High
Performance installations.
C. Apply the head expander (if required). For installation
USINGTHEHEADEXPANDERGOTO).34!,,!4)/.
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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
DRILLBITPREDRILLDEEPANDINSERT
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D. Drill two 1/4weep holesINTHESILLADAPTER,OCATETHEHOLESvFROMEACH
end. The bottom of the weep hole must be at the bottom of the vertical leg of
the sill adapter.

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E. Apply a 1/4to 3/8continuous bead of sealant to the
INTERIORFACEOFTHEEXISTINGBLINDSTOPSATTHEHEADANDBOTH
jambs. Also apply a bead of sealant across the sill, connecting
with the sealant at the jambs.
F. Place a bead of sealantWHERETHEEXISTINGSTOOLMEETSTHE
EXISTINGFRAMESILLANDJAMBS
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'Insert the replacement windowFROMTHEINTERIOR
in the opening by setting the bottom of the window
in first, then tilting the top into place. Make sure the
window rests against the interior surface of the blind
STOPSANDTHESILLADAPTERWILLCONTACTTHEEXISTINGSILL
(Place a shim near the top of one jamb, in line with the
TOPPREDRILLEDHOLEINTHEWINDOWFRAME0ARTIALLYINSERT
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other jamb.
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I. Continue placing shims at each pre-drilled installation
screw holes in jambs as needed to plumb and square the
window. Check window for squareness by making sure
diagonal measurement from corner to corner is within
INBOTHDIRECTIONS
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J Pre-drill 1/16" diameter holes in the shims.)NSERTA
XPANHEADWOODSCREWPROVIDEDINTOEACHPREDRILLED
hole in the frame. Finish inserting the top screw in each
jamb. Minor adjustments may be made at the checkrail
using the jamb adjustment screws located in the lower sash
channel, just above the checkrail.
Note: Ensure the jamb adjustment screws are flush
or just below flush with the sash track so they do not
interfere with the travel of the balances.

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K. Seal the window to the exterior stops. Place a corner
bead of sealant around the perimeter of the window frame
where the new frame contacts the original window frame.
Also place a bead of sealant between the sill adapter and
THEBOTTOMOFTHEEXISTINGWINDOWSILL4HISBEADSHOULD
connect to the jamb sealant beads. Tool the sealant beads.
Note: When corner beading sealant around the
perimeter of the window frame, be careful not to cover
the weep holes at the sill.
A. Apply insulating foam sealant. From the interior,
INSERTTHENOZZLEOFTHEAPPLICATORAPPROXIMATELY
deep into the space between the window and the
ROUGHOPENINGANDAPPLYADEEPBEADOFFOAM
4HISWILLALLOWROOMFOREXPANSIONOFTHEFOAMAND
will minimize squeeze out. If using foam other than
'REAT3TUFF™Window and Door Insulating Foam
Sealant by the Dow Chemical Company, allow the
FOAMTOCURECOMPLETELYUSUALLYTOHOURS
BEFOREPROCEEDINGTOTHENEXTSTEP
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 fill the space from the
back of the blind stops to the interior face of the
opening.
5INTERIOR 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.
B. Check window operation 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.
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6INTERIOR TRIM
A. Reinstall existing interior sash stops or new trim as desired.
High Performance Installations:)NSTALLNEWXINTERIORSASHSTOPSATHEADJAMBS
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PLACEDFROMEACHENDANDNOTMORETHANONCENTER