Andersen 200 Series - Narroline® Hung - 0005133 Installation guide

30°& 45°Angle Bay Window Assembly

and Installation Guide

for Andersen® 400 Series Tilt-Wash and 200 Series Narroline® Double-Hung Windows

Instructions are for typical, new wood-framed wall construction with weather protection in place.

Instructions may not be right for all installations due to building design, construction materials or methods used and/or building or site

conditions. Consult a contractor or architect for recommendations.

Flanges on the unit alone will not properly ash and seal the window. Follow these instructions carefully.

For questions call 1-888-888-7020 Monday - Friday, 7 a.m. to 7 p.m. and Saturday, 8 a.m. to 4 p.m. central time.

For more information and/or guides visit andersenwindows.com.

Please leave this guide with building owner.

Thank you for choosing Andersen.

▶▶Read▶guide▶from▶beginning▶to▶end▶before▶starting▶installation.▶Read▶all▶warnings▶and▶cautions▶during▶unit▶installation.▶▶

Use caution when working at elevated

heights and around unit openings. Follow

manufacturers’ instructions for ladders and/or

scaffolding. Failure to do so may result in injury

or death.

Follow manufacturers’ instructions for hand

or power tools. Always wear safety glasses.

Failure to do so may result in injury and/or

product damage.

Windows and doors can be heavy. Use safe

lifting techniques and a reasonable number

of people with enough strength to lift, carry

and install window and door products to

avoid injury and/or product damage.

Unless specically ordered, Andersen windows

and doors are not equipped with safety glass,

and if broken, could fragment causing injury.

Many laws and building codes require safety

glass in locations adjacent to or near doors.

Andersen windows are available with safety

glass that may reduce the likelihood of injury

when broken. Information on safety glass is

available from your local Andersen dealer.

• Andersen® Head Flashing and Installation Flanges DO NOT take the place of standard window

and door ashing. Unit must be properly ashed and sealed with sealant for protection

against water and air inltration. Use non-reective ashings. Highly reective ashing tapes

can raise the surface temperature of the vinyl to the point where vinyl deformation and product

damage may occur.

• Do not apply any type of lm to glass. Thermal stress conditions resulting in glass damage

could occur.

• Use of movable insulating materials such as window coverings, shutters, and other shading

devices may damage glass and/or vinyl. In addition, excessive condensation may result

causing deterioration of windows and doors.

Section One - 30° & 45° Bay Window Assembly Guide

2

For Joined Transom & 2-Wide Center Units Only

Installations with Joined Transom and/or 2-Wide

Center Units require the use of additional joining

material to join units. Refer to Combination

Design Section of the Andersen® Product

Guide for Professionals to make sure correct

joining material is used and combination will

appropriately perform and comply with local

building codes. Consult an architect or contractor.

Failure to do so could result in injury and/or

product damage.

Parts Required

• Center Unit(s) (A)

• Flanking Units (B)

• 30° or 45° Joining Posts (C)

• Upper and Lower Platform (D)

• Head and Seat Boards (E)

• Joining Post Clips (F)

• Joining Clips (G)

• 30° or 45° Inside Joining

Post Casing (H)

• Side Flashing (I)

• 30°or 45° Adaptor (J)

• Rigid Foam Insulation (K)

Tools and Supplies

• Safety Glasses

• Hammer

• Flat Blade Screwdriver

• Phillips Screwdriver

• Level

• Carpenter’s Square

• Combination Square

• Tape Measure

• Clamps

• Shims (waterproof)

• Caulk Gun

• Sealant

• Flashing Tape

• Pencil

• Small Pry Bar

• Awl

• Sharp Utility Knife

• Soft Rags

• Isopropyl Alcohol

• Jack and Support

• Flat Head Wood Screws

#8 x 1-1/4"

#8 x 1-1/2"

#8 x 2"

#8 x 2-1/2"

#8 x 3"

#8 x 5-1/2"

• Drill/Driver

• 3/8" Drill Bit

• 1/8" Drill Bit

• 3/32" Drill Bit

• 1-1/4" Finishing Nails

• 2-1/2" Finishing Nails

• 3/4" Staples or Nails

• 1-3/8" Spacer Boards

• 2 x 4 Skid Material

• 1 x 4 Cross Bracing

Component Identiﬁcation

Optional Accessories

• Extension Jambs (L)

• Head and Seat Board

Inside Trim

• Auxiliary Casing

• Cable Support System

• Perma-Shield®

Narroline® Sill Stop

• Fibrex® Cellular Trim Board

Interior Side Up

Section One - 30° & 45° Bay Window Assembly

L

J

I

B

C

D

K

HA

EK

H

F

GC

B

L

I

J

Metal fasteners and other hardware components

may corrode when exposed to preservative treated

and ﬁre-retardant treated lumber. Obtain and use

the appropriate metal fasteners and hardware as

called out by the installation guide to fasten unit

to any rough opening made from pressure treated

and ﬁre-retardant treated lumber. Failure to use the

appropriate materials for the installation may cause

a failure resulting in injury, property or product

damage.

Section One - 30° & 45° Bay Window Assembly Guide

3

For Joined Transom Units Only

• Transom joining of units must be

performed before bay unit

assembly begins. Perform

transom joining according to

instructions in the Double-Hung

Transom Joining Kit.

• Projecting Units with Transom Units attached

must not exceed 8' 2-1/4" in height.

For Joined Transom & 2-Wide Center Units Only

• Determine joining type required according to Combination Design Section of the Andersen® Product Guide for

Professionals.

• Determine unit windload performance capacity. Join units according to appropriate design windload table

found in the Andersen® Product Guide for Professionals.

• Join units according to appropriate joining material kit's instruction guide.

• Available joining material kits include Non Reinforced Joining Kit for Tilt-Wash Units, Non Reinforced Joining Kit

for Narroline® Units, and Non Reinforced Joining with Transom Attached Kit.

For 2-Wide Center Units Only

• Center units must be joined before

proceeding with bay unit assembly.

• Follow joining instructions when two

Tilt-Wash or two Narroline® Windows are

used in place of a Double-Hung Picture Window.

Section One - 30° & 45° Bay Window Assembly Guide

4

Attach Head Filler Piece to head of Tilt-Wash

and Double-Hung Picture Window Units

ﬂush with Head Jamb using 1" staples or

nails located every 6" (staples or nails are

not included in kit).

Head Filler

Piece

Double-Hung

Picture Window

or Tilt-Wash Unit

Only

Head Jamb

1" Staple

or Nail

For Tilt-Wash and Double-Hung Picture Units Only

Interior Side Up

1. Prepare Units for Assembly

• When arranging units for assembly, make sure

placement and direction of units are correct.

• Wall must be 4-9/16" to 7-1/8" for stock platforms,

head boards, and seat boards.

Head Center Unit(s) Flanking Unit

Flanking Unit

Sill

• Carefully remove units from cartons and place interior

side up on a clean ﬂat work surface.

• Remove foam packing blocks.

• Remove Side Installation Flanges by pulling outward

from sides on all units.

• Trim Head and Sill Installation Flange ﬂush with Side

Jambs of units using a sharp utility knife.

• Arrange units in correct positions for assembly.

Trim Head Installation

Flanges Flush with

Side Jambs

Remove Side

Installation Flanges

Interior Side Up

Side Jamb

Trim Sill Installation

Flanges Flush with

Side Jamb

2. Attach Flanking Units to Center Unit(s)

• Slide units together aligning head and sill

of Flanking Units with Center Unit(s).

Center Unit(s) Flanking Unit

Flanking Unit

Interior Side Up

Section One - 30° & 45° Bay Window Assembly Guide

5

2. Attach Flanking Units to Center Unit(s) (Continued)

Double-Hung Picture Window to Narroline®

Double-Hung Window

Tilt-Wash to Tilt-Wash

Tilt-Wash to Double-Hung Picture Window Narroline® to Narroline Double-Hung Window

Tilt-Wash

Joining Clip

Narroline®

Joining Clip

• Position Joining Clips on side jambs 4" from ends of

units. Equally space remaining two clips on units.

For Joined Transom Units, an extra set of Joining

Clips are needed.

• Tap Joining Clips into place. Predrill through holes

1-1/4" deep, using a 3/32" drill bit, and fasten Joining

Clips using #8 x 1-1/4" screws.

Joining Clip

For Narroline® Flanking Units Only

Place temporary shims under outside edge of

Flanking Units until Joining Clips are fastened.

Interior Side Up

• Determine type of Joining Clip to apply according to

units being joined from details below.

• Place Platforms rough side up on work surface.

• Measure length of Platform along interior edge. Place

pencil mark at center of Platform.

• Mark centerline across width of Platform using

carpenter’s square.

• Repeat step for other Platform.

• Flip Upper Platform over, smooth side up (opposite

side of centerline mark).

• Scribe two lines, 3" and 1-1/4" in from and along entire

length of exterior edge of Upper Platform using

combination square.

3. Prepare Platforms

1-1/4" Scribed Line

3" Scribed Line

Centerline Mark

Upper Platform

Combination

Square

Carpenter’s Square

Pencil

Narroline®

Joining Clip

Upper/Lower

Platform

Rough Side

Smooth Side

Interior Edge

Exterior

Edge

Section One - 30° & 45° Bay Window Assembly Guide

6

4. Determine and Mark Centerline on Unit

• For Single Center Unit, measure width of center unit

along frame. Place pencil mark at center of unit on

frame, as shown. Repeat at other end of center unit.

• For 2-Wide Center Unit, place pencil mark in center of

middle Joining Post or joining area. Repeat at other

end of middle Joining Post.

Mark Center

Single Center Unit

5. Position and Temporarily Secure Lower Platform

• Position Lower Platform, centerline facing inward,

against Installation Flange of Center Unit(s).

• Align centerline on Lower Platform with center mark on

Center Unit(s).

• Drill 3/32" holes every 4"- 6" on scribe line no more

than 1-1/2" deep.

• Temporarily fasten Lower Platform using two

#8 x 1-1/2" ﬂat head wood screws placed on scribed

line.

Sill

Head

Lower Platform

Installation Flange

Number of center units will determine centerline

placement on unit. Follow procedure below

according to number of center units in installation.

For Narroline® Center Units Only

Narroline Units have a ﬂexible weatherstrip on

Sill in place of a rigid Installation Flange. Lower

Platform, when positioned, cannot rest on ﬂexible

weatherstrip. Use a 1-3/8" thick spacer under

ﬂexible weatherstrip to help support Lower Platform.

Interior Side Up

Pencil

• Flip Lower Platform over, smooth side up (opposite

side of centerline mark).

• Scribe a line 3/4" in from and along entire length of

exterior edge of Lower Platform using combination

square.

Lower Platform

3. Prepare Platforms (Continued)

Lower Platform

3/4" Scribed Line Combination

Square

Sill

Pencil

Head

Smooth

Side

Smooth

Side

Section One - 30° & 45° Bay Window Assembly Guide

7

6. Secure Lower Platform to Center Unit(s)

• Fasten Lower Platform to center unit(s) along scribed

line using #8 x 1-1/2" ﬂat head wood screws in

predrilled holes. Lower Platform

#8 x 1-1/2"

Screw

Scribed Line

Lower Platform

Sill

Interior Side Up

4" to 6"

3/4"

Cross Section Detail

• Fasten Upper Platform to center unit(s) along scribed

lines, as shown, using #8 x 1-1/2" ﬂat head wood

screws. Space screws at 6" to 8" intervals.

Head

Sill

Upper Platform

#8 x 1-1/2" Screw

7. Secure Upper Platform to Center Unit(s)

Upper Platform

DO NOT place screws in balancer

areas highlighted in black.

Flanking

Unit Flanking

Unit

DO NOT place screws in balancer

areas highlighted in black.

For Narroline® Double-Hung Windows Only

DO NOT secure Upper Platform to head of Narroline®

Units within 8" of either side jamb. Balancer damage

will result.

Interior Side Up

Scribed Lines

6" to 8"

3"

1-1/4"

Cross Section Detail

Double-Hung Picture

Window as Center Unit

Narroline Unit(s) as

Center Unit

Flanking

Unit Flanking

Unit

8" 8"

8" 8" 8" 8"

Section One - 30° & 45° Bay Window Assembly Guide

8

9. Secure Platforms to Flanking Units

Flanking Unit Flanking Unit

Head

Upper Platform

For Narroline® Double-Hung Windows Only

DO NOT secure Upper Platform to head of Narroline® Units

within 8" of either side jamb. Balancer damage will result.

Refer to caution in Step 7 for balancer locations.

• Lift Flanking Unit into position and temporarily

secure to Upper Platform using a 1-1/2" ﬂat

head wood screw. Place screw on scribed lines

of Upper Platform.

• Repeat procedure for Lower Platform.

• Repeat procedure for opposite Flanking Unit.

• Check Head and Seat Board for correct ﬁt.

If adjustment is needed, remove temporary

screw and readjust unit to obtain correct ﬁt.

Reattach Flanking Unit using 1-1/2" ﬂat head

wood screw in a different location than above.

• Fasten Upper Platform to head of Flanking

Units using 1-1/2" ﬂat head wood screws.

Locate screws along scribed lines 1-1/4" and 3"

in from the exterior edge of Upper Platform.

Space screws at 6" to 8" intervals.

• Fasten Lower Platform to sill of Flanking Units

using 1-1/2" ﬂat head wood screws. Locate

screws along scribed lines 3/4" in from the

exterior edge of Lower Platform. Space screws

at 6" to 8" intervals.

Interior Side Up

Scribed

Lines

8. Position Head and Seat Boards Temporarily

• Determine interior ﬁnished side of Head and

Seat Boards.

• Place Head Board, ﬁnished toward interior, into

position against Upper Platform.

• Place Seat Board, ﬁnished toward interior, into

position against Lower Platform.

• Place a 1-1/2" thick spacer board between Lower

Platform and Seat Board.

• Center Head and Seat Board to obtain best ﬁt.

• Clamp Head and Seat Board to Platforms.

Head Board

(unﬁnished side)

Head

Clamp

Upper Platform

Head and Seat Boards must be temporarily

installed as a template to assist in securing

Platforms.

Interior Side Up

Seat Board

(ﬁnished side)

Lower

Platform

1-1/2"

Spacer

Board Head Board

(installed)

Sill

Head

1-1/2" Flat

Head Screws

Note: Upper Platform shown in illustrations.

Seat Board

(installed)

Section One - 30° & 45° Bay Window Assembly Guide

9

3" 1-1/4"

2-3/16"

1-1/4" 3"

Head

10. Secure Platforms to Side Jambs

• Determine screw locations for securing Platforms to

Side Jambs using either 30° Joining Post or 45°

Joining Post detail below.

• Mark screw positions by measuring along edge of

Platforms from corner at Joining Post. Locate screws

1-1/4" and 3" in from exterior edge of Platforms.

• Fasten Platforms to Side Jambs of Center and Flanking

Units using #8 x 1-1/2" ﬂat head wood screws.

• Repeat procedure for sill end of unit.

Area of cross section

details to left.

For Custom Bay Using Cable Support System Only

Platforms and Head/Seat Boards for Custom Bay

Units may not have predrilled holes for Cable

Support System. Follow Cable Hole Template

instructions, found in the Cable Support System

Package, to determine cable hole locations. Drill

3/8" holes through Platforms and Head/Seat Boards

at all Joining Post locations before proceeding with

Step 11.

Cross Section Detail

30° Mullion Post

Cross Section Detail

45° Mullion Post Interior Side Up

12. Apply Skids and Cross Bracing

• Cut and fasten, using #8 x 2" screws, two 2 x 4 skids to

Lower Platform for transporting unit. Make sure skid

closest to interior is at least 5" from interior edge of

Lower Platform.

• Fasten 1 x 4 cross brace to corners of platforms at a

diagonal, as shown, using screws.

1 x 4 Cross

Brace

2 x 4 Skids

• Label Head Board and Seat Boards for reinstallation.

• Remove clamps holding Head Board and Seat Board to

Platforms.

• Carefully remove and repackage Head Board and Seat

Board for shipment to installation site.

11. Remove Head and Seat Boards Seat Board Clamps

Head Board

Upper Platform

Interior Side Up

Head

Sill

5"

1 x 4 Cross

Brace

Lower Platform Sill

3"

1-1/4"

1-9/16"

1-1/4" 3"

Head

Sill

Section One - 30° & 45° Bay Window Assembly Guide

10

14. Cut Head End of Joining Post (Joined Transom Units Only)

• Measure height from sill of bottom unit to head of

Transom Unit.

• Measure Joining Post beginning at sill end and mark

location of cut on head end using a pencil. Sill end has

a step cut. DO NOT cut off sill end.

• Cut off head end of Joining Post squarely at pencil

mark.

15. Apply Joining Post Clips

• Position Joining Post Clips in side jamb kerf 4" from

Joining Post ends. Space remaining Joining Post Clips

equally along Joining Post.

• Fasten Joining Post Clips using #8 x 1-1/4" ﬂat head

screws.

Joining

Post Clip

Joining Post

Sill End With

Step Cut

Head End

Cut and

Remove

Head End

Pencil

Mark

• Carefully ﬂip unit over exterior side up.

• Insert rigid foam insulation into Joining Post area.

• Seal entire edge of rigid foam insulation to units and

Platforms using 1/4" bead of sealant.

13. Apply Rigid Foam Insulation

Rigid Foam

Insulation Installed

Note: Platform omitted for clarity.

Apply Sealant

Along Edge

Joined Transom Bay Units Only

Joining Posts for Joined Transom Bay

Units must be measured and cut to size.

Joined Transom Bay Units Only

Place an additional two Joining Post

Clips in side jamb kerf 2" from ends of

Transom Units.

Windows and doors can be heavy. Use safe lifting

techniques and a reasonable number of people with

enough strength to lift, carry and install window and

door products to avoid injury and/or product

damage.

Exterior Side Up

Joining Post

Joining

Post Clip

#8 x 1-1/4"

Flat Head

Screw

Section One - 30° & 45° Bay Window Assembly Guide

11

17. Seal Ends of Joining Posts Apply Sealant to

Ends of Joining

Post

Sill

16. Install Joining Posts

• Position 30° or 45° Joining Posts with square

end ﬂush with head of unit.

• Beginning at one end, gently tap Joining Posts

into place using a hammer and wood block.

30° or 45° Joining Post

Flanking

Unit

Center Unit(s)

DO NOT tap on ridge in center of Joining

Post. Tapping on ridge could result in

damage to Joining Post.

18. Apply Auxiliary Casing

• Measure and cut Auxiliary Casing to ﬁt along

head of unit. For 45° Bay Units, cut 22-1/2°

miters. For 30° Bay Units cut 15° miters.

• For Flanking Units, cut outermost ends of Auxiliary

Casing ﬂush with outside edge of Flanking Unit

and parallel to edge of Platform as shown.

• Position and hold Auxiliary Casing in place.

Predrill through insect screen slot in Head Outer

Frame Member using a 3/32" drill bit, 1-1/4" deep.

Space holes every 6" to 8".

• Apply sealant between Platform and units and at all

mitered ends of Auxiliary Casing.

• Fasten Auxiliary Casing through predrilled holes

using corrosion resistant 1-1/2" ﬂat head wood

screws.

• Remove any excess sealant squeeze out on units or

Auxiliary Casing using a soft rag.

Auxiliary Casing

Head

Sill

Head

Auxiliary

Casing

Cross Section Detail - Vertical

Corrosion Resistant

1-1/2" Screw

Head Outer

Frame

Member

Insect Screen

Slot

Cut Auxiliary Casing ﬂush

with edge of Flanking Unit and

parallel with edge of platform.

Upper Platform

Sealant

DO NOT overtighten screws.

Overtightening screws may cause damage

to Head Outer Frame Members.

Exterior Side Up

• Clean exterior surface of unit at head and sill

ends of Joining Posts using isopropyl alcohol

and a clean cloth.

• Seal head and sill ends of Joining Posts using

sealant. Level out sealant using a small piece of

cardboard.

Head

Note: Platform omitted for clarity.

Exterior Side Up

Apply

Sealant to

Ends of

Joining

Post

Section One - 30° & 45° Bay Window Assembly Guide

12

20. Secure Joining Posts

Joining Clip

#10 x 5-1/2"

Screw

21. Prepare Unit for Transport

• Make sure all components and accessories are located

and prepared for transport to installation site along with

unit. These may include the following:

- Interior 30° or 45° Joining Post Casing

- Head and Seat Board Trim

- Extension Jambs

- Cable Support System

- Head and Seat Boards

- 3-1/2" Fibrex® Cellular Trim Board

• For unit installation, proceed to Section 2 - 30° and 45°

Bay Window Installation on Page 13 of this guide.

• Carefully tighten screws until Joining Posts are snug

up to outside of units.

• Carefully stand unit upright on sill end. Temporarily

secure unit to ﬂat or other stable surface using

fasteners, straps, or 2 x 4 bracing.

19. Stand Unit Up and Secure

• Insert #10 x 5-1/2" long screw into all Joining Clips.

Drive screw through rigid foam insulation and into

Joining Posts until snug.

Flat

Rigid Foam

Insulation

Please attach this

assembly and installation

guide to glass of unit

using a piece of tape.

ATTENTION

DEALER / DISTRIBUTOR

Joining Post

Windows and doors can be heavy. Use safe lifting

techniques and a reasonable number of people with

enough strength to lift, carry and install window and

door products to avoid injury and/or product

damage.

30° or 45° Bay Window Unit must be supported at

all times when in upright position to prevent tipping.

Failure to do so could result in personal injury and

product damage.

DO NOT overtighten screws. Overtightening screws

will damage screws and/or Joining Posts.

Exterior View

Section Two - 30° & 45° Bay Window Installation Guide

13

1. Identify Type of Installation

• Most common type of installation.

• Used if rough opening height is smaller than Bay

Unit.

• If window must be raised above previously installed

header to meet sofﬁt or to match line of adjoining

window trim, cut top platform back to clear header

as shown.

• If window is raised install ﬁller blocks at sill plate of

equal dimension to amount raised.

• Unit opening is extended down to ﬂoor line.

• Masonry anchoring required.

Section Two - 30° & 45° Bay Window Installation

Center Unit

Cable

Cable End Lower Platform

Upper Platform

Header

Cable Clamp

Shim

Double Sill Plate

Center Unit

Cable

Cable End Lower Platform

Upper Platform

Header

Cable Clamp

Double Sill Plate

Center Unit

Lower Platform cut back

to wall thickness

Header

Shim

Double Sill Plate

Center Unit

Cable

Cable End Lower Platform

Upper Platform

Masonry

Cable Clamp

Shim/Nailer

Masonry

Shim/Nailer

Standard Installation

Modiﬁed Standard Installation

Walk-Out Installation

Masonry Installation

Metal fasteners and other hardware components

may corrode when exposed to preservative treated

and ﬁre-retardant treated lumber. Obtain and use

the appropriate metal fasteners and hardware as

called out by the installation guide to fasten unit

to any rough opening made from pressure treated

and ﬁre-retardant treated lumber. Failure to use the

appropriate materials for the installation may cause

a failure resulting in injury, property or product

damage.

3-1/2" Fibrex®

Cellular Trim

Board or wider

trim by others

3-1/2" Fibrex®

Cellular Trim

Board or wider

trim by others

3-1/2" Fibrex®

Cellular Trim

Board or wider

trim by others

3-1/2" Fibrex®

Cellular Trim

Board or wider

trim by others

3-1/2" Fibrex®

Cellular Trim

Board or wider

trim by others

3-1/2" Fibrex®

Cellular Trim

Board or wider

trim by others

3-1/2" Fibrex®

Cellular Trim

Board or wider

trim by others

Section Two - 30° & 45° Bay Window Installation Guide

14

2. Determine Type of Support System Required

Note: Units are omitted for clarity in all illustrations.

Posts Foundation

Header

Sofﬁt

Cable

Support

System

Knee Braces

• A support system such as a cable support system, post and foundation support, knee braces, and

attachment to header or sofﬁt support must be installed to properly support projecting window units.

Failure to do so could result in product damage and/or incorrect operation of units.

• When a roof or bonnet is built over unit, make sure that adequate support is provided to carry weight of

roof. Failure to do so could result in product damage and/or incorrect operation of units.

• If Custom Bay Unit is being installed, use Cable Support System at every Joining Post. Failure to do so

could result in product damage and/or incorrect operation of units.

• Bay unit is supported by cables attached to header,

gable or eave. Cable Support System allows unit to be

adjusted to overcome difﬁculties associated with

normal building settlement. The Cable Support System

in 9' and 12' versions are available through your

Andersen dealer. See Cable Support System Installation

Guide for proper installation.

• IMPORTANT: If Custom Bay Unit is being installed,

use Cable Support System at every Joining Post.

• Install Cable Support System after Step 7 on Page 16.

• When adequate support cannot be achieved by Cable

Support System or by header or sofﬁt support or

cantilever system, Knee Braces (provided by others)

must be attached to structural member below each

Joining Post.

• Anchor Knee Brace into structural member or install

double cripple below unit and secure braces into them.

• IMPORTANT: If Custom Bay Unit is being installed,

use Cable Support System at every Joining Post.

• Bay unit is supported by cantilevered ﬂoor joist or

attached directly to header/sofﬁt. Projection of

cantilevered ﬂoor joist must not exceed 1/3 of overall

length of support joist.

• Unit is supported by post or foundation of dwelling.

Cable Support System Knee Brace

Cantilever Mount or Header/Sofﬁt Post or Foundation Support

Exterior View Exterior Views

Exterior Views Exterior Views

1/3

2/3

Section Two - 30° & 45° Bay Window Installation Guide

15

Overall Wall Thickness

3. Prepare Rough Opening

• Frame rough opening to dimensions recommended at

www.andersenwindows.com or prepare an existing

rough opening. Masonry rough opening must be 1/2"

greater than unit width and height.

• Make sure sill plate is level by checking with a level.

Shim sill plate to level.

• Make sure rough opening is plumb by checking with a

level.

• Make sure rough opening is square by placing tape

measure diagonally across rough opening, upper left to

lower right and upper right to lower left corner, if

measurements are within 1/8", opening is square.

Level

Double Sill Plate

• Determine overall wall thickness (excluding siding) by

measuring wall from outside edge of exterior sheathing

to inside edge of interior wall board.

• Determine interior offset dimension by subtracting 4"

from wall thickness dimension.

4. Determine Wall Thickness and Position of Unit in Wall

Interior

Wallboard

Exterior

Sheathing

• From the interior, use a combination square to transfer

Interior Offset Dimension to double sill plate and header.

Acid solutions commonly used to wash masonry

will damage glass, fasteners, hardware, and metal

ﬂashings. Follow the cleaning solution

manufacturer's recommendations carefully. Protect

and/or cover Andersen products during cleaning

process to prevent acid contact. If solution does

come in contact with unit immediately wash all

surfaces with clean water.

Pencil

Interior View

Formula: Overall Wall - 4" = Interior Offset

Dimension Dimension

Example: 6-9/16" - 4" = 2-9/16"

Interior Offset

Dimension

Overall Wall Thickness

4"

Rough Opening Width

Rough

Opening

Height

Header

Section Two - 30° & 45° Bay Window Installation Guide

16

6. Temporarily Support Unit in Rough Opening

7. Position and Fasten Unit

• Align inside edge of Lower Platform with line scribed on sill plate

and align centerline of unit with centerline on sill plate.

• Temporarily fasten Lower Platform to sill plate using three #8 x 3"

ﬂat head wood screws.

• Align inside edge of Upper Platform with scribed line on header.

#8 x 3"

Flat Head

Wood

Screw

Lower Platform

• Make sure unit is plumb. Temporarily fasten Upper Platform to

header using three #8 x 3" ﬂat head wood screws.

• Check unit for plumb, level and correct operation of operating

units. If adjustment is required, remove screws and adjust as

needed using shims and jack.

• Refasten unit using #8 x 3" ﬂat head wood screws.

Upper Platform

• Temporarily place jack and 2 x 4 support braces under

Lower Platform to prevent unit from tipping out of opening.

2 x 4

Support

Brace

Jack

Level

Projecting unit must be installed plumb and level regardless

of plumbness or levelness of dwelling wall. Failure to do so

may result in product damage.

Projecting unit must be supported during installation until

fully fastened into opening to prevent tipping. Failure to

do so could result in severe personal injury and/or product

damage.

Exterior View

Interior View

Metal fasteners and other hardware components may corrode when exposed to preservative treated and ﬁre-retardant

treated lumber. Obtain and use the appropriate metal fasteners and hardware as called out by the installation guide

to fasten unit to any rough opening made from pressure treated and ﬁre-retardant treated lumber. Failure to use the

appropriate materials for the installation may cause a failure resulting in injury, property or product damage.

5. Place Unit in Rough Opening

• Remove cross bracing and skids from unit.

• From exterior of dwelling, carefully lift unit into rough opening. Interior View

Scribed

Line

Windows and doors can be heavy. Use safe lifting

techniques and a reasonable number of people with

enough strength to lift, carry and install window and door

products to avoid injury and/or product damage.

Section Two - 30° & 45° Bay Window Installation Guide

17

6" to 8"

• Shim space between header and Upper Platform.

• Fasten both Upper and Lower Platforms in rough

opening using #8 x 3" ﬂat head wood screws spaced at

6" to 8" intervals.

9. Apply Blocking or Filler

Header

#8 x 3" Flat

Head Wood

Screws

Shims

30° or 45° Blocking

8. Secure Unit to Sill Plate and Header

Double

Sill Plate

• Cut 30° or 45° blocking or ﬁller pieces to length

according to trim-out option desired.

• Insert blocking or ﬁller pieces between side jamb and

rough opening of wall. Fasten to rough opening using

#8 x 3" ﬂat head wood screws spaced at 10" to 12"

intervals.

10. Prepare Flanking Units to be Secured to Side Jambs

Filler

Piece

• For Tilt-Wash Flanking Units, Sash and Side Jamb

Liners must be removed to secure side jamb of

Flanking Units to wall. Proceed with sash removal

instructions (A-H), starting on Page 18.

• For Narroline® Flanking Units, Flanking Units will be

secured through side jambs without removing Sash or

Side Jamb Liner. Proceed to Step 11 on Page 22.

30° or 45° Blocking Filler

#8 x 3"

Screws

Side Jambs attached to wall must have blocking or

a ﬁller installed vertically between rough opening

and side jamb. Failure to do so could result in

bowed side jambs and incorrect operation of units.

Support Systems such as Cable Support, Knee

Brace, Cantilever Mount, or Post Support can be

installed at this time. Refer to Page 14 of this guide.

If support system is not installed at this time, jack

and temporary support pieces must remain in place.

Method of blocking depends on type of trim-out

desired. See "Trim-Out Options" in Step 19 on Page

30 of this guide.

• For Modiﬁed Trim-Out, cut blocking to ﬁt angle

between rough opening and side jamb.

• For Standard Trim-Out, trim ﬁller pieces to match

jamb angle. Inserted ﬁller pieces vertically.

#8 x 3"

Screws

Interior View

Modiﬁed Trim-Out Standard Trim-Out

Left side of illustration depicts Modiﬁed Trim-Out.

Right side of illustration depicts Standard Trim-Out.

Section Two - 30° & 45° Bay Window Installation Guide

18

DO NOT jerk sash. Glass may break causing injury

or sash may be damaged.

B. Tilt the Lower Sash Down

A. Position Lower Sash for Removal

• Raise Lower Sash about 3" from sill.

• Slide both Wash Assists down from top of side jambs

until they “snap” in place between Lower Sash and

Vinyl Side Jamb Liner.

• Pull in on top rail of sash with ﬁrm but gentle force.

• While supporting weight of sash, tilt in and down until

sash is at 90 degree position.

C. Remove Lower Sash from Unit

• Depress Shoe Retainer Clip holding Sash Pivot Pin

using a Phillips screwdriver.

• This step continued at top of next page.

Vinyl Side

Jamb Liner

Wash Assist

(one for each side

of the sash)

Lower Sash

Shoe

Depress

Shoe Retainer Clip

Tilt Lower Sash in and

down to 90° position.

Sash cannot be removed if it is at an angle less than

90 degrees.

Sash Removal for Tilt-Wash Flanking Units Only

Interior View

Phillips

Screwdriver

Sash must be supported at all times when

disengaging it from side jamb. Failure to do so may

result in personal injury or damage to property or

product.

3"

Interior View

Section Two - 30° & 45° Bay Window Installation Guide

19

D. Prepare Upper Sash for Removal

E. Position Upper Sash for Removal

• While holding Upper Sash in position, depress left-

hand vinyl Side Jamb Liner and exert ﬁrm but gentle

inward force on top portion of Upper Sash.

• Tilt Upper Sash in and down until it is at a 90 degree

position.

C. Remove Lower Sash from Unit (Continued)

• While Shoe Retainer Clip is depressed, raise Sash

corner 2" above Shoe.

• Keep Sash Pivot Pin out of its Shoe while repeating

this step for opposite side of Lower Sash.

• When both Sash Pivot Pins are out of their Shoes,

lift Lower Sash up and out of window.

• Set Lower Sash safely aside.

• Slide Wash Assists to top of vinyl Side Jamb Liners.

• Lower Upper Sash until it is about 5" above sill.

• Grasp top right-hand side of Upper Sash. While

depressing vinyl Side Jamb Liner using one hand,

gently, but ﬁrmly, pull Upper Sash inward until it

releases at top.

Wash Assist

Upper Sash

Vinyl Side

Jamb Liner

2"

Vinyl Side

Jamb Liner

Raise Wash Assists

to Top of Both Vinyl

Side Jambs

Tilt Upper

Sash 90°

Upper Sash

Raise Sash Corner

2" Above Shoe

Shoe

DO NOT leave window opening unattended,

especially when small children are present. A fall

from the window opening could cause death or

serious injury.

DO NOT pull left-hand side of sash out at this time.

Sash cannot be removed if it is at an angle of less

than 90 degrees.

Sash Removal for Tilt-Wash Flanking Units Only

Interior View

Section Two - 30° & 45° Bay Window Installation Guide

20

F. Remove Upper Sash

• Depress Shoe Retaining Clip using a Phillips

screwdriver.

• While Shoe Retaining Clip is depressed, raise Sash

corner 2" above Shoe.

• Keep Sash Pivot Pin out of its Shoe while repeating

this step for opposite side of sash.

• When both Sash Pivot Pins are out of their Shoes, lift

sash up and out of frame.

• Set Upper Sash safely aside

2"

Depress

Shoe

Retainer

Clip

Shoe

G. Release Tension on Balances

Unlocked Position Locked Position

Omega

Spring

Brake

• Turn Shoe Balance Cam 90 degrees (unlocked position)

using a ﬂat blade screwdriver. Hold screwdriver ﬁrmly

in Shoe Balance Cam and carefully let shoe rise until

tension is released.

• Repeat for other Shoe on same side of unit.

• Repeat this step for opposite side.

Shoe

Balance

Cam

Shoe

Balance

Cam

Lower Sash Shoe

Upper Sash Shoe

Note: When sash is tilted in, Omega Spring Brake engages side jamb

to secure sash.

Continue supporting sash while disengaging it from

unit. Sash could fall causing product damage or

personal injury.

DO NOT leave window opening unattended,

especially when small children are present. A fall

from window opening could cause death or serious

injury.

Balance Shoes are under high tension. Use a ﬂat

blade screwdriver with a long handle so both hands

can be used to release balance energy. Suddenly

releasing Balance Shoe could damage window unit.

Sash Removal for Tilt-Wash Flanking Units Only

Interior Views

Interior View

Phillips

Screwdriver

Flat Blade

Screwdriver

Exterior View

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Andersen 200 Series - Narroline® Hung - 0005133 Installation guide

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