EFCO 8800 Assembly Instructions Vol.4

One Piece Corner Unit Assembly Instructions Volume 4 of 6 - Sections 11 - 14

July 2011

PART NO. Y804

EFCO 2009 Page 2

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 4

13. Outside 90° Corner Captured Unit Glazing A. Temporary Glazing Locators…………………………………………………….. B. Setting and Caulking Glazing …………………………………………………… C. Adapter and Cover Installation……….………………………………………….

14. Inside 90° Corner Captured Unit Glazing A. Temporary Glazing Locators…………………………………………………….. B. Setting and Caulking Glazing …………………………………………………… C. Adapter and Cover Installation……….………………………………………….

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 4

23 24 - 25 26 - 33

34 35 - 36 37 - 44

Volume 5 of 6

15. General Notes and Guidelines

16. Size Limitations

17. Standard Hardware Identification

18. Frame Assembly - Vent at Fixed Horizontal

19. Frame Assembly - Vent at Stack Sill

20. Unit Glazing Preparation - Vent at Fixed Horizontal

21. Unit Glazing Preparation - Vent at Stack Sill

22. SSG Vent Unit Glazing at Fixed Horizontal

23. SSG Vent Unit Glazing at Stack Sill

24. Captured Vent Unit Glazing at Fixed Sill

25. Captured Vent Unit Glazing at Stack Sill

Note: Assembly Instructions are provided as a supplement, and should be used in conjunction with

the approved shop drawings.

EFCO 2009 Page 3

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 4

Table of Contents

Volume 5 of 6

26. Assembly and Glazing - SSG Vent at Fixed Horizontal

27. Assembly and Glazing - SSG Vent at Stack Sill

28. Assembly and Glazing - Captured Vent at Fixed Horizontal

29. Assembly and Glazing - Captured Vent at Stack Horizontal

30. Hardware Mounting On Unit Assembly

31. Hardware Mounting On Sash

32. Mounting Vent Assembly Into Unit Assembly

Volume 6 of 6

33. Shadow Box Assembly

34. Shadow Box Installation

35. Shadow Box Insulation Installation

36. Back Panel Installation

37. Back Panel Insulation Installation

38. Final Cleaning

Minimizing Condensation

Note: Please reference EFCO's "Understanding Condensation" brochure which can be obtained through your EFCO representative. Condensation will form on any surface when unfavorabl e cond itions (interior temperature and relative humidity and exterior temperature) are present. When the formation of excessive condensation is a concern, it is highly recomm ended that a design professional is utilized to perform an analysis of the shop drawings to recommend the best possible installation methods. Please contact your EFCO representative for information on EFCO's Thermal Analysis Services. Many current installation practices lead to an increase in the possibility of the formation of condensation. Though not all inclusive, the list of examples below illustrates conditions under which condensation is lik ely to occur:

1. Bridging system thermal break with non-thermally broken metal flashing or lintels th at are exposed to the exterior

2. System exposure to cold air cavities

3. Interior relative humidity levels not maintained at recommended levels, see EFCO’s “Understanding Condensation” brochure

4. Inadequate separation between system and surrounding condition at perimeter

5. Product combinations during the shop drawing stage that result in bridging thermal breaks of one or all products involved

Note: Assembly Instructions are provided as a supplement, and should be used in conjunction with

the approved shop drawings.

EFCO 2011 Page 4

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 4

Section 11 - Outside 90° Corner SSG Unit Glazing : A. Temporary Glazing Locators

1. Apply two temporary glazing locators (KV01, KV02) with isolators and setting blocks at approximate quarter points at the sill and intermediate horizontal locations.

2. Refer to Volume 2, page 8 of the S-8000 Unitized Curtain Wall Assembly Instructions for assembly details and notes.

Temporary Glazing

Locators (KV02)

HEAD

Temporary Glazing

Locators (KV01)

KV01 KV02

Figure 1

SILL

EFCO 2009 Page 5

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 4

Section 11 - Outside 90° Corner SSG Unit Glazing : B. Setting and Caulking Glazing

1. Set the glazing on the silicone spacer gaskets making sure glazing is pressed firmly onto the setting blocks of the temporary retainers.

2. Refer to Volume 2, pages 9 and 10 of the S-8000 Unitized Curtain Wall Assembly Instructions for assembly details and notes.

3. It is necessary to glaze one side of the corner unit, allow proper cure time, and then glaze the opposite side.

4. Laying the unit flat, exterior side up, will make setting and caulking the glazing faster and with better quality control.

HEAD

Set glazing onto the silicone spacer gaskets and against the setting blocks at the temporary glazing locators.

SILL

Note: Assembled corner units will

typically weigh in excess of 500 pounds. Proper assembly tables and handling equipment must be

considered to facilitate safe and

speedy production methods.

Figure 2

EFCO 2009 Page 6

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 4

Section 11 - Outside 90° Corner SSG Unit Glazing : B. Setting and Caulking Glazing

5. Remove the temporary glazing retainers.

6. Apply structural silicone sealant into the void between the glass and mullion per the sealant manufacturer’s application instructions. Frames should not be moved until the sealant has cured and per the sealant manufacturer’s recommendations.

7. Refer to Volume 2, page 9 and 10 of the S-8000 Unitized Curtain Wall Assembly Instructions for glazing instructions, details and note s.

Note: Only silicone sealants which have been developed and tested specifically for structural

HEAD

glazing applications should be used for glazing purposes.

SILL

Figure 3

Apply Structural

silicone

Pack sealant

into joint

EFCO 2009 Page 7

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 4

Section 11 - Outside 90° Corner SSG Unit Glazing : C. Adapter Installation

1. Apply L142 thermal isolator clip to the verticals and horizontals. Refer to Volume 2, page 11 of the S-8000 Unitized Curtain Wall Assembly Instructions for more information.

2. Apply 17B7 SSG glazing adapter to the stack sill. Butt together the 17B7 at the corners. Slide the WC17 horizontal stack joint rain screen gasket into position. Cut the gasket at a 45° angle with a serrated knife and leave a 1/4” gap at the corner for pressure equalization of the stack joint. It is not necessary for the miter cut of the WC17 to be a precision cut. Refer to Volume 2, page 12 of the S-8000 Unitized Curtain Wall Assembly Instructions for more information.

3. Insert HS32 setting blocks between the stack sill glazing adapters and the glass at quarte r points, or as directed per the final approved shop drawings. Refer to Volume 2, page 12 of the S-8000 Unitized Curtain Wall Assembly Instructions for more information.

L142 Thermal

Isolator Clips

HS32 Setting Blocks

HEAD

L142 Thermal

Isolator Clips

Figure 4

HS32 Setting

Blocks

17B7 SSG Stack Sill

Glazing Adapter

SILL

17B7 SSG Stack Sill

Glazing Adapter

WC17 Horizontal Stack Joint Rain Screen Gaskets

Slide WC17 gasket into 17B7

EFCO 2009 Page 8

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 4

Section 11 - Outside 90° Corner SSG Unit Glazing : C. Adapter Installation

4. Apply the preset thermal isolator (WC16) to the head, running the gasket continuously between the vertical mullions and the miter of the stack head at the corner. Refer to Volume 2, page 11 of the S-8000 Unitized Curtain Wall Assembly Instructions for more information.

5. Clean the sealant contact surfaces of the mullions and gutters with an approved solvent or cleaner.

6. Apply a heavy bead of sealant to the ends of the gutters and the tops of the vertical mullions as shown in Figures 6 and 7.

7. Butt seal the mitered ends and install the SSG gutters to the frame at the head horizontal and secure with SPZ1. The gutters must butt together in the corner. Tool a fillet bead of sealant along the back side of the gutter at the joint formed at the corner. Remove the remaining excess sealant at the mitered joint.

8. Tool the sealant at the tops of the vertical mullions as shown in Figure 8. Refer to Volume 2, page 13 of the S-8000 Unitized Curtain Wall Assembly Instructions for more information.

Silicone

Sealant

WC16 Isolator Gaskets

Figure 6

SSG Gutter

SILL

SPZ1

HEAD

Silicone

Sealant

SPZ1

SSG Gutter

WC16

Figure 5

Note! Critical seal! The sealant must be thoroughly tooled and blended over the adjacent surfaces all around the sealant contact areas shown in Figure 7. This seal occurs at the top of each non-corner vertical mullion.

Figure 8 Figure 7

EFCO 2009 Page 9

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 4

Section 11 - Outside 90° Corner SSG Unit Glazing : C. Adapter Installation

9. Slide in WC19 gasket and LC23 spacer into the gutter starting at the jamb end. LC23 spacer runs continuously and is flush with the ends of the gutter on the jamb end and butts together at the corner. WC19 runs continuously, overhangs 3” on the jamb end, and wraps around the corner on one side approximately 3” to butt seals together. See Figure 9 below.

10. Clean the sealant contact surfaces of the gutters on the mitered ends with an approved solvent or cleaner. Apply a bed of sealant that will cover the areas where the silicone splice sleeve will be applied.

11. Apply the silicone splice sleeve in two pieces. Smooth the splice down onto the gutter, forcing out all air bubbles.

12. Apply sealant around the edges of the splices and tool smooth and water tight.

Apply the two piece

silicone splice sleeve.

SSG Gutter

Figure 10

Apply a bed of sealant that will cover the areas where the silicone splice sleeve will

WC19 Horizontal Stack Joint Seal Gasket

be applied.

Apply sealant around

the splice sleeve and

tool smooth.

Figure 11

LC23 Horizontal Stack Joint Spacer Gasket

Apply silicone

sealant and butt

ends together.

LC23 Horizontal Stack Joint Spacer Gasket

HEAD

Figure 9

EFCO 2009 Page 10

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 4

Section 11 - Outside 90° Corner SSG Unit Glazing : C. Adapter Installation

13. Slide WC20 bulb gasket into one of the 17F6 glazing adapters and both 17A6 SSG vertical fin bars. Exercise care to avoid stretching the gasket during installation. Let the bulb gasket run approximately 1/4” longer on each end than 17A6 and 17F6. The bulb gasket must be installed prior to applying 17F6 and 17A6.

14. Crimp the bulb in place to prevent slippage during unit installation. Crimp at each end of the adapter, and then about 24” on center.

15. Roll the 17A6 SSG vertical fin bar into the isolator in each vertical mullion of the assembled unit (Refer to Volume 2, page 14, Figures 29 and 30 of the S8000 Unitized Curtain Wall Assembly Instructions). Crowd the bulb gasket so it is flush with each end of the fin bar during fin bar installation. The fin bar runs between the gutter and the stack sill glazing adapter with approximately 1/8” gaps at each end for sealant continuity.

16. Roll the 17F6 adapters into the isolator, in the corner mullion of the assembled unit. (See Figure 13 and 14 below).

17. Adjust the 17B7 stack sill adapter so that it is flush with the 17A6 vertical fin bar on each end at the jambs as shown in Figure 28 of Volume 2, page 14 of the S-8000 Unitized Curtain Wall Assembly Instructions.

Insert 17A6 into the isolator and roll into position.

Figure 13

WC20 Fin Bar Bulb Gasket

HEAD

Insert 17F6 corner mullion glazing adapters and roll into position.

WC20 Fin Bar Bulb Gasket

17F6

SILL

WC20 Fin Bar Bulb Gasket

Insert 17A6 into the isolator

and roll into position.

Figure 12

Figure 14

EFCO 2009 Page 11

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 4

Section 11 - Outside 90° Corner SSG Unit Glazing : C. Adapter Installation

18. Using an approved solvent or cleaner, clean the surfaces of the mullions at the intersection of the intermediate horizontal and the jamb vertical.

19. Apply a heavy bead of sealant at the intersection of the intermediate horizontals and verticals (Refer to Volume 2, page 15, Figure 32 of the S-8000 Unitized Curtain Wall Assembly Instructions).

20. Roll the 17H6 SSG glazing adapter into the isolator at the horizontal as shown in Figure 16. This must be done immediately after step 14 and 15, page 15 of Volume 2, before the sealant begins to cure. The adapter should be setting in sealant at the ends while leaving the notched areas free of sealant. The notch areas at the ends are to be left open and sealant free for use as a weep system for the horizontals.

21. Insert HS32 setting blocks between the glazing adapter and the glass at quarter points, or as directed per the final approved shop drawings. Light prying pressure may need to be applied to the glazing adapter to insert the setting blocks into place.

HS32 Setting

Blocks

17H6 SSG

Glazing Adapter

HEAD

SILL

HS32 Setting

Block

17H6 SSG

Glazing Adapter

Figure 15

Figure 16

EFCO 2009 Page 12

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 4

Section 11 - Outside 90° Corner SSG Unit Glazing : D. Weather Seal Application

1. Using an approved solvent or cleaner, clean the sealant contact surfaces of the glazing and adapters of all oils and other contaminants.

2. If sealant primer is required, apply it per the primer/sealant manufacturer’s instructions.

3. Insert 3/8” diameter backer rod between the glazing and adapters around all four corners of each lite of glazing. Refer to Figure 38 on page 17 of Volume 2 for more information.

4. Apply sealant into the void between the adapters and glazing. If the sealant is properly and carefully applied, masking tape is not necessary on the adjacent surfaces.

5. Before the sealant begins to cure or skin over, tool the sealant into the joints smoothly, taking care to smooth and blend the sealant in the corners and intermediate intersections as shown below. Seen in section view, the sealant should have an hourglass shape and maintain a 2:1 width to depth ratio as shown in Volume 2, page 17, Figure 38 of the S-8000 Unitized Curtain Wall Assembly Instructions. Remove any excess sealant from the surrounding surfaces before the sealant begins to cure.

HEAD

SILL

Figure 17

Sealant Continuity Joint

Continuity Joint

Sealant

Continuity Joint

Figure 18 Figure 19 Figure 20

Sealant

EFCO 2009 Page 13

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 4

Section 12 - Inside 90° Corner SSG Unit Glazing : A. Temporary Glazing Locators

1. Apply two temporary glazing locators (KV03 AND KV04) with isolators and setting blocks at approximate quarter points at the sill and intermediate horizontal locations.

2. Refer to Volume 2, page 8 of the S-8000 Unitized Curtain Wall Assembly Instructions for assembly details and notes.

Temporary Glazing

Locators (KV03)

HEAD

Temporary Glazing

KV03 KV04

Figure 21

Locators (KV04)

SILL

EFCO 2009 Page 14

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 4

Section 12 - Inside 90° Corner SSG Unit Glazing : B. Setting and Caulking Glazing

1. Set the glazing on the silicone spacer gaskets making sure glazing is pressed firmly onto the setting blocks of the temporary retainers.

2. Refer to Volume 2, pages 9 and 10 of the S-8000 Unitized Curtain Wall Assembly Instructions for assembly details and notes.

3. It is necessary to glaze one side of the corner unit, allow proper cure time, and then glaze the opposite side. Frames should not be moved until the sealant has cured and per the sealant manufacturer’s recommendations.

4. Laying the unit flat, exterior side up, will make setting and caulking the glazing faster and with better quality control

HEAD

Set glazing onto the silicone spacer gaskets and against the setting blocks at the temporary glazing locators.

SILL

Note: Assembled corner units will

typically weigh in excess of 500 pounds. Proper assembly tables and handling equipment must be

considered to facilitate safe and

speedy production methods.

Figure 22

EFCO 2009 Page 15

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 4

Section 12 - Inside 90° Corner SSG Unit Glazing : B. Setting and Caulking Glazing

5. Remove the temporary glazing retainers

6. Apply sealant and tool the frames as required per the sealant manufacturer’s application instructions. Frames should not be moved until the sealant has cured and per the sealant manufacturer’s recommendations.

7. Refer to Volume 2, page 9 and 10 of the S-8000 Unitized Curtain Wall Assembly Instructions for glazing instructions, details and note s.

Note: Only silicone sealants which have been developed and tested specifically for structural glazing applications should be used for glazing purposes.

HEAD

SILL

Figure 23

Apply Structural

silicone

Pack sealant

into joint

EFCO 2009 Page 16

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 4

Section 12 - Inside 90° Corner SSG Unit Glazing : C. Adapter Installation

7. Apply L142 thermal isolator clip to the verticals and horizontals. Refer to Volume 2, page 11 of the S-8000 Unitized Curtain Wall Assembly Instructions for more information.

8. Apply 17B7 SSG glazing adapter to the stack sill. Butt together the (2) 17B7 at the corners. Slide the WC17 horizontal stack joint rain screen gasket into position. Cut the gasket at a 45° angle with a serrated knife and leave a 1/4” gap at the corner for pressure equalization of the stack joint. It is not necessary for the miter cut of the WC17 to be a precision cut. Refer to Volume 2, page 11 of the S-8000 Unitized Curtain Wall Assembly Instructions for more information.

9. Insert HS32 setting blocks between the stack sill glazing adapters and the glass at quarte r points, or as directed per the final approved shop drawings. Refer to Volume 2, page 12 of the S-8000 Unitized Curtain Wall Assembly Instructions for more information.

L142 Thermal

Isolator Clips

17B7 SSG Stack Sill

Glazing Adapter

HEAD

HS32 Setting

L142 Thermal

Isolator Clips

17B7 SSG Stack Sill

Glazing Adapter

Figure 24

HS32 Setting Blocks

Blocks

WC17 Horizontal Stack Joint Rain

SILL

Slide WC17 gasket into 17B7

Screen Gaskets

EFCO 2009 Page 17

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 4

Section 12 - Inside 90° Corner SSG Unit Glazing : C. Adapter Installation

10. Apply the preset thermal isolator (WC16) to the head, running the gasket continuously between the vertical mullions and the miter of the stack head at the corner. Refer to Volume 2, page 11 of the S-8000 Unitized Curtain Wall Assembly Instructions for more information.

11. Clean the sealant contact surfaces of the mullions and gutters with an approved solvent or cleaner.

12. Apply a heavy bead of sealant to the ends of the gutters and the tops of the vertical mullions as shown in Figures 26 and 27.

13. Butt seal the mitered ends and install the SSG gutters to the frame at the head horizontal and secure with SPZ1. The gutters must butt together in the corner. Tool a fillet bead of sealant along the back side of the gutter at the joint formed at the corner. Remove the remaining excess sealant at the mitered joint.

14. Tool the sealant at the tops of the vertical mullions as shown in Figure 8. Refer to Volume 2, page 13 of the S-8000 Unitized Curtain Wall Assembly Instructions for more information.

WC16 Isolator Gaskets

Silicone Sealant

Figure 26

SSG Gutter

SILL

SPZ1

HEAD

Silicone

Sealant

Note! Critical seal! The sealant must be thoroughly tooled and blended over the adjacent surfaces all around the sealant contact areas

SPZ1

SSG Gutter

WC16

Figure 25

shown in Figure 26. This seal occurs at the top of each non-corner vertical mullion.

Figure 28 Figure 27

EFCO 2009 Page 18

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 4

Section 12 - Inside 90° Corner SSG Unit Glazing : C. Adapter Installation

14. Slide in WC19 gasket and LC23 spacer into the gutter starting at the jamb end. LC23 spacer runs continuously and is flush with the ends of the gutter on the jamb end and butts together at the corner. WC19 runs continuously, overhangs 3” on the jamb end, and wraps around the corner on one side approximately 3” to butt seals together. See Figure 29 below.

15. Clean the sealant contact surfaces of the gutters on the mitered ends with an approved solvent or cleaner. Apply a bed of sealant that will cover the areas where the silicone splice sleeve will be applied.

16. Apply the silicone splice sleeve in two pieces. Smooth the splice down onto the gutter, forcing out all air bubbles.

17. Apply sealant around the edges of the splices and tool smooth and water tight.

SSG Gutter

Apply the two piece

silicone splice sleeve.

LC23 Horizontal Stack Joint Spacer Gasket

Apply a bed of sealant that will cover the areas where the silicone splice sleeve will be applied.

Figure 30

WC19 Horizontal Stack Joint Seal Gasket

Apply silicone

sealant and butt

ends together.

HEAD

Apply sealant around

the splice sleeve and

LC23 Horizontal Stack Joint Spacer Gasket

Figure 29

SSG Gutter

tool smooth.

Figure 31

EFCO 2009 Page 19

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 4

Section 12 - Inside 90° Corner SSG Unit Glazing : C. Adapter Installation

18. Slide WC20 bulb gasket into one of the 17F7 glazing adapters and both 17A6 SSG vertical fin bars. Exercise care to avoid stretching the gasket during installation. Let the bulb gasket run approximately 1/4” longer on each end than 17A6 and 17F7. The bulb gasket must be installed prior to applying 17F7 and 17A6.

19. Crimp the bulb in place to prevent slippage during unit installation. Crimp at each end of the adapter, and then 24” on center.

20. Roll the 17A6 SSG vertical fin bar into the isolator in each vertical mullion of the assembled unit (Refer to Volume 2, page 14, Figures 29 and 30 of the S8000 Unitized Curtain Wall Assembly Instructions). Crowd the bulb gasket so it is flush with each end of the fin bar during fin bar installation. The fin bar runs between the gutter and the stack sill glazing adapter with approximately 1/8” gaps at each end for sealant continuity.

21. Roll the 17F6 adapters into the isolator, in the corner mullion of the assembled unit (see Figure 33and 34 below).

22. Adjust the 17B7 stack sill adapter so that it is flush with the 17A6 vertical fin bar on each end at the jambs as shown in Figure 28 of Volume 2, page 14 of the S-8000 Unitized Curtain Wall Assembly Instructions.

Insert 17F7.

Figure 33

HEAD

WC20 Fin Bar Bulb Gasket

Insert 17A6 into the isolator and roll into position.

17F7

Figure 34

SILL

Insert 17F7 corner mullion glazing adapters and roll into position.

WC20 Fin Bar Bulb Gasket

Insert 17A6 into the isolator and roll into position.

WC20 Fin Bar Bulb Gasket

Figure 32

EFCO 2009 Page 20

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 4

Section 12 - Inside 90° Corner SSG Unit Glazing : C. Adapter Installation

23. Using an approved solvent or cleaner, clean the surfaces of the mullions at the intersection of the intermediate horizontal and the jamb vertical.

24. Apply a heavy bead of sealant at the intersection of the intermediate horizontal and vertical (Refer to Volume 2, page 15, Figure 32 of the S-8000 Unitized Curtain Wall Assembly Instructions).

25. Roll the 17H6 SSG glazing adapter into the isolator at the horizontal as shown in Figure 36. This must be done immediately after step 14 and 15, page 15 of Volume 2, before the sealant begins to cure. The adapter should be setting in sealant at the ends while leaving the notched areas free of sealant. The notch areas at the ends are to be left open and sealant free for use as a weep system for the horizontals.

26. Insert HS32 setting blocks between the glazing adapter and the glass at quarter points, or as directed per the final approved shop drawings. Light prying pressure may need to be applied to the glazing adapter to insert the setting blocks into place.

HS32 Setting Blocks

17H6 SSG Glazing Adapter

HS32 Setting Blocks

Figure 36

HEAD

HS32 Setting Blocks

SILL

Figure 35

EFCO 2009 Page 21

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 4

Section 12 - Inside 90° Corner SSG Unit Glazing : D. Weather Seal Application

1. Using an approved solvent or cleaner, clean the sealant contact surfaces of the glazing and adapters of all oils and other contaminants.

2. If sealant primer is required, apply it per the primer/sealant manufacturer’s instructions.

3. Insert 3/8” diameter backer rod between the glazing and adapters around all four corners of each lite of glazing. Refer to Figure 38 on page 17 of Volume 2 for more information.

4. Apply sealant into the void between the adapters and glazing. If the sealant is properly and carefully applied, masking tape is not necessary on the adjacent surfaces.

5. Before the sealant begins to cure or skin over, tool the sealant into the joints smoothly, taking care to smooth and blend the sealant in the corners and intermediate intersections as shown below. Seen in section view, the sealant should have an hourglass shape and maintain a 2:1 width to depth ratio as shown in Volume 2, page 17, Figure 38 of the S-8000 Unitized Curtain Wall Assembly Instructions. Remove any excess sealant from the surrounding surfaces before the sealant begins to cure.

HEAD

SILL

Figure 37

Sealant Continuity Joint

Continuity Joint

Figure 38 Figure 39 Figure 40

Sealant

Continuity Joint

EFCO 2009 Page 22

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 4

Section 13 - Outside 90° Corner Captured Unit Glazing : A. Temporary Glazing Locators

1. Apply two temporary glazing locators (KV03 AND KV04) with isolators and setting blocks at quarter points at the sill and intermediate horizontal locations.

2. Refer to Volume 2, page 20 of the S-8000 Unitized Curtain Wall Assembly Instructions for assembly details and notes.

Temporary Glazing

Locators (KV03)

HEAD

Temporary Glazing

Locators (KV04)

SILL

KV03

KV04

Figure 41

EFCO 2009 Page 23

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 4

Section 13 - Outside 90° Corner Captured Unit Glazing : B. Setting and Caulking Glazing

1. Set the glazing on the silicone spacer gaskets making sure glazing is pressed firmly onto the setting blocks of the temporary retainers.

2. Refer to Volume 2, pages 21 and 22 of the S-8000 Unitized Curtain Wall Assembly Instructions for assembly details and notes.

3. It is necessary to glaze one side of the corner unit, allow proper cure time, and then glaze the opposite side. Frames should not be moved until the sealant has cured and per the sealant manufacturer’s recommendations.

4. Laying the unit flat, exterior side up, will make setting and caulking the glazing faster and with better quality control.

HEAD

Set glazing onto the silicone spacer gaskets and against the setting blocks at the temporary glazing locators.

SILL

Note: Assembled corner units will

typically weigh in excess of 500 pounds. Proper assembly tables and handling equipment must be

considered to facilitate safe and

speedy production methods.

Figure 42

EFCO 2009 Page 24

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 4

Section 13 - Outside 90° Corner Captured Unit Glazing : B. Setting and Caulking Glazing

5. Remove the temporary glazing retainers.

6. Apply and tool the frames as required per the sealant manufacturer’s application instructions. Frames should not be moved until the sealant has cured an d per the sealant manufacturer’s recommendations.

7. Refer to Volume 2, page 21 and 22 of the S-8000 Unitized Curtain Wall Assembly Instructions for glazing instru ctions, details and notes.

Note:

HEAD

Only silicone sealants which have been developed and tested specifically for structural glazing applications should be used for glazing purposes.

SILL

Figure 43

Apply Structural

silicone

Pack sealant

into joint

EFCO 2009 Page 25

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 4

Section 13 - Outside 90° Corner Captured Unit Glazing : C. Adapter and Cover Installation

1. Apply L142 thermal isolator clip to the verticals and horizontals. Refer to Volume 2, page 23 of the S-8000 Unitized Curtain Wall Assembly Instructions for more information.

2. Apply 17B5 captured glazing adapter to the stack sill. Butt together the 17B5 at the corners. Slide the WC17 horizontal stack joint rain screen gasket into position. Cut the gasket at a 45° angle with a serrated knife and leave a 1/4” gap at the corner for pressure equalization of the stack joint. It is not necessary for the miter cut of the WC17 to be a precision cut. Refer to Volume 2, page 24 of the S-8000 Unitized Curtain Wall Assembly Instructions for more information.

3. Insert HS31 setting blocks between the stack sill glazing adapters and the glass at quarte r points, or as directed per the final approved shop drawings. Refer to Volume 2, page 24 of the S-8000 Unitized Curtain Wall Assembly Instructions for more information.

L142 Thermal

Isolator Clips

HEAD

L142 Thermal

Isolator Clips

Figure 44

HS31 Setting Blocks

(2 per location).

17B5 Captured Stack

Sill Glazing Adapter

SILL

HS31 Setting Blocks (2 per location).

17B5 Captured Stack Sill Glazing Adapter

WC17 Horizontal Stack Joint Rain Screen Gaskets

Slide WC17 gasket into 17B7

EFCO 2009 Page 26

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 4

Section 13 - Outside 90° Corner Captured Unit Glazing : C. Adapter and Cover Installation

4. Apply the preset thermal isolator (WC16) to the head, running the gasket continuously between the vertical mullions and the miter of the stack head at the corner. Refer to Volume 2, page 23 of the S-8000 Unitized Curtain Wall Assembly Instructions for more information.

5. Clean the sealant contact surfaces of the mullions and gutters with an approved solvent or cleaner.

6. Apply a heavy bead of sealant to the ends of the gutters and the tops of the vertical mullions as shown in Figures 46 and 47.

7. Butt seal the mitered ends and install the SSG gutters to the frame at the head horizontal and secure with SPZ1. The gutters must butt together in the corner. Tool a fillet bead of sealant along the back side of the gutter at the joint formed at the corner. Remove the remaining excess sealant at the mitered joint.

8. Tool the sealant at the tops of the vertical mullions as shown in Figure 48. Refer to Volume 2, page 25 of the S-8000 Unitized Curtain Wall Assembly Instructions for more information.

Silicone

Sealant

SILL

WC16 Isolator Gaskets

Figure 46

SSG Gutter

SPZ1

HEAD

Silicone

Sealant

SPZ1

WC16

SSG Gutter

Figure 45

Note! Critical seal! The sealant must be thoroughly tooled and blended over the adjacent surfaces all around the sealant contact areas shown in Figure 47. This seal occurs at the top of each non-corner vertical mullion.

Figure 48 Figure 47

EFCO 2009 Page 27

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 4

Section 13 - Outside 90° Corner Captured Unit Glazing : C. Adapter and Cover Installation

9. Slide in WC19 gasket and LC23 spacer into the gutter starting at the jamb end. LC23 spacer runs continuously and is flush with the ends of the gutter on the jamb end and butts together at the corner. WC19 runs continuously, overhangs 3” on the jamb end, and wraps around the corner on one side approximately 3” to butt seals together. See Figure 49 below.

10. Clean the sealant contact surfaces of the gutters on the mitered ends with an approved solvent or cleaner. Apply a bed of sealant that will cover the areas where the silicone splice sleeve will be applied.

11. Apply the silicone splice sleeve in two pieces. Smooth the splice down onto the gutter, forcing out all air bubbles.

12. Apply sealant around the edges of the splices and tool smooth and water tight.

Apply the two piece

silicone splice sleeve.

Figure 50

LC23 Horizontal Stack Joint Spacer Gasket

Captured Gutter

WC19 Horizontal Stack Joint Seal Gasket

Apply silicone

sealant and butt

ends together.

LC23 Horizontal Stack Joint Spacer Gasket

HEAD

Figure 49

Apply a bed of sealant that will cover the areas where the silicone splice sleeve will be applied.

Apply sealant around

the splice sleeve and

tool smooth.

Figure 51

EFCO 2009 Page 28

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 4

Section 13 - Outside 90° Corner Captured Unit Glazing : C. Adapter and Cover Installation

13. Insert 17K1 glazing retainer into 17B5 stack sill glazing adapter and roll into position. Insert 17K0 glazing retainer into 17B1 gutter and roll into position. The glazing retainers will be flush with the ends of the adapters and butt together in the corners. No sealant is necessary for this step.

14. Drive in WC22 wedge gasket between 17K0, 17K1 and the glazing infill. Start in the center, then move to the ends crowding in as much gasket as possible. Do not stretch the gasket during application. The WC22 should be trimmed to the same length as 17K0 and 17K1 less the miter. Refer to Volume 2, page 26 Figures 73 -76 of the S-8000 Unitized Curtain Wall Assembly Instructions for more information.

17K0

WC22

17B1

WC22

17K1

17K0

HEAD

17B5

WC22

SILL

17K1

Figure 51

17B5

EFCO 2009 Page 29

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 4

Section 13 - Outside 90° Corner Captured Unit Glazing : C. Adapter and Cover Installation

15. Slide WC20 bulb gasket into one of the 17E3 glazing adapters and both 17A2 captured vertical fin bars. Exercise care to avoid stretching the gasket during installation. Let the bulb gasket run approximately 1/4” longer on each end than 17A2 and 17E3. The bulb gasket must be installed prior to applyin g 17E3 and 17A2.

16. Crimp the bulb in place to prevent slippage during unit installation. Crimp at each end of the adapter, and then 24” on center.

17. Roll the 17A2 captured vertical fin bar into the isolator in each vertical mullion of the assembled unit (Refer to Volume 2, page 27, Figures 79 and 80 of the S8000 Unitized Curtain Wall Assembly Instructions). Crowd the bulb gasket so it is flush with each end of the fin bar during fin bar installation. The fin bar runs between the gutter and the stack sill glazing adapter with approximately 1/6” gaps at each end for clearance.

18. Roll the 17E3 adapters into the isolator into the corner mullion of the assembled unit. (See Figure 53 and 54 below).

19. Adjust the 17B5 stack sill adapter so that it is flush with the 17A2 vertical fin bar on each end at the jambs as shown in Figure 78 of Volume 2, page 27 of the S-8000 Unitized Curtain Wall Assembly Instructions.

WC20 Fin Bar Bulb Gasket

Figure 53

HEAD

WC20 Fin Bar Bulb Gasket

Insert 17A2 into the isolator and roll into position.

Insert 17E3 corner mullion glazing adapters and roll into position.

WC20 Fin Bar Bulb Gasket

17E3

SILL

Insert 17A2 into the isolator

and roll into position.

Figure 52

Figure 54

EFCO 2009 Page 30

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 4

Section 13 - Outside 90° Corner Captured Unit Glazing : C. Adapter and Cover Installation

20. Using an approved solvent or cleaner, clean the surfaces of the mullions at the intersection of the intermediate horizontal and the jamb vertical.

21. Apply a heavy bead of sealant at the intersection of the intermediate horizontals and verticals. Refer to Volume 2, page 28, Figure 83 of the S-8000 Unitized Curtain Wall Assembly Instructions for more information and details.

22. Clean the ends of 17B9 captured glazing adapter .

20. Apply beads of sealant to each end of 17B9 as shown in Figure 56.

21. Roll the 17B9 captured glazing adapter into the isolator at the horizontal as shown in Figures 57 and 58. This must be done immediately after the steps above, before the sealant begins to cure. Tool the sealant at the ends to make the glazing pocket water tight.

22. Insert HS31 setting blocks between the glazing adapter and the glass at quarter points, or as directed per the final approved shop drawings. Light prying pressure may need to be applied to the glazing adapter to insert the setting blocks into place.

17B9

Figure 56

HEAD

HS31 Setting Blocks (2) per location.

SILL

HS31 Setting Blocks (2) per location.

17B9

Figure 57 Figure 58

17B9

Figure 55

EFCO 2009 Page 31

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 4

Section 13 - Outside 90° Corner Captured Unit Glazing : C. Adapter and Cover Installation

23. Insert 17B8 cover onto 17B9 captured glazing adapter and rotate into place as shown in Figures 60 and 61.

24. Cut the WC22 gaskets approximately 4% to 5% longer than the D.L.O. dimension.

25. Drive in WC22 wedge gaskets starting with the gasket on the setting block side of the glazing pocket. The gaskets should be applied starting in the center of the D.L.O., and then working from the ends, work the gasket in place to the center of the lite.

17B8 Cover

HEAD

17B8 Cover

Wedge Gasket

WC22

17B9

Figure 61

SILL

17B9

Figure 60

Figure 59

EFCO 2009 Page 32

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 4

Section 13 - Outside 90° Corner Captured Unit Glazing : C. Adapter and Cover Installation

26. Insert 17A3 cover into 17A2 captured glazing adapter at each unit jamb and rotate into place as shown in Figures 63 and 64.

27. Cut the WC22 gaskets approximately 4% to 5% longer than the D.L.O. dimension.

28. Drive in WC22 wedge gaskets as shown in Figure 64. The gaskets should be applied starting in the center of the D.L.O., and then working from the ends, work the gaskets in place to the center of the lite.

29. HNC4 joint plugs will be required at the head and sill of the assembled unit frame. Using an approved solvent or cleaner, clean the surfaces of the mullions where the joint plug will be applied.

30. Apply joint plugs as shown and noted in Volume 2, pages 31 and 32 of the S-8000 Unitized Curtain Wall Assembly Instructions.

HNC4 Joint Plug

HEAD

HNC4 Joint Plug

17A2 Glazing Adapter

17A3 Cover

WC22 Wedge Gasket

HNC4 Joint Plug

17A3 Covers

WC22 Wedge Gaskets

SILL

WC22 Wedge Gaskets

17A3 Covers

HNC4 Joint Plug

Figure 62

Figure 63 Figure 64

EFCO 2009 Page 33

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 4

Section 14 - Inside 90° Corner Captured Unit Glazing : A. Temporary Glazing Locators

1. Apply two temporary glazing locators (17B5, 17B9 x 4” long) with isolators (L142) and setting blocks (HS31) at quarter points at the sill and intermediate horizontal locations.

2. Refer to Volume 2, page 20 of the S-8000 Unitized Curtain Wall Assembly Instructions for assembly details and notes.

Temporary Glazing

HEAD

Locators (KV02)

Temporary Glazing

KV02

KV01

Figure 65

Locators (KV01)

SILL

EFCO 2009 Page 34

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 4

Section 14 - Inside 90° Corner Captured Unit Glazing : B. Setting and Caulking Glazing

1. Set the glazing on the silicone spacer gaskets making sure glazing is pressed firmly onto the setting blocks of the temporary retainers.

2. Refer to Volume 2, pages 21 and 22 of the S-8000 Unitized Curtain Wall Assembly Instructions for assembly details and notes.

3. It is necessary to glaze one side of the corner unit, allow proper cure time, and then glaze the opposite side. Frames should not be moved until the sealant has cured and per the sealant manufacturer’s recommendations.

4. Laying the unit flat, exterior side up, will make setting and caulking the glazing faster and with better quality control.

HEAD

Set glazing onto the silicone spacer gaskets and against the setting blocks at the temporary glazing locators.

SILL

Note: Assembled corner units will

typically weigh in excess of 500 pounds. Proper assembly tables and handling equipment must be

considered to facilitate safe and

speedy production methods.

Figure 66

EFCO 2009 Page 35

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 4

Section 14 - Inside 90° Corner Captured Unit Glazing : B. Setting and Caulking Glazing

5. Remove the temporary glazing retainers.

6. Apply structural silicone sealant into the void between the glass and mullion per the sealant manufacturer’s application instructions. Frames should not be moved until the sealant has cured and per the sealant manufacturer’s recommendations.

7. Refer to Volume 2, page 21 and 22 of the S-8000 Unitized Curtain Wall Assembly Instructions for glazing instru ctions, details and notes.

Note: Only silicone sealants which have been developed and tested specifically for structural glazing applications should be used for glazing purposes.

HEAD

SILL

Figure 67

Apply Structural

silicone

Pack sealant

into joint

EFCO 2009 Page 36

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 4

Section 14 - Inside 90° Corner Captured Unit Glazing : C. Adapter and Cover Installation

1. Apply L142 thermal isolator clip to the verticals and horizontals. Refer to Volume 2, page 23 of the S-8000 Unitized Curtain Wall Assembly Instructions for more information.

2. Apply 17B5 captured glazing adapter to the stack sill. Butt together the (2) 17B5 at the corners. Slide the WC17 horizontal stack joint rain screen gasket into position. Cut the gasket at a 45° angle with a serrated knife and leave a 1/4” gap at the corner for pressure equalization of the stack joint. It is not necessary for the miter cut of the WC17 to be a precision cut. Refer to Volume 2, page 24 of the S-8000 Unitized Curtain Wall Assembly Instructions for more information.

3. Insert HS31 setting blocks between the stack sill glazing adapters and the glass at quarte r points, or as directed per the final approved shop drawings. Refer to Volume 2, page 24 of the S-8000 Unitized Curtain Wall Assembly Instructions for more information.

L142 Thermal Isolator Clips

17B5 Captured Stack Sill Glazing Adapter

HEAD

HS31 Setting

L142 Thermal

Isolator Clips

Figure 68

HS31 Setting

Blocks

17B5 Captured Stack

Sill Glazing Adapter

WC17 Horizontal Stack Joint Rain Screen Gaskets

SILL

Slide WC17 gasket into 17B7

EFCO 2009 Page 37

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 4

Section 14 - Inside 90° Corner Captured Unit Glazing : C. Adapter and Cover Installation

4. Apply the preset thermal isolator (WC16) to the head, running the gasket continuously between the vertical mullions and the miter of the stack head at the corner. Refer to Volume 2, page 23 of the S-8000 Unitized Curtain Wall Assembly Instructions for more information.

5. Clean the sealant contact surfaces of the mullions and gutters with an approved solvent or cleaner.

6. Apply a heavy bead of sealant to the ends of the gutters and the tops of the vertical mullions as shown in Figures 70 and 71.

7. Butt seal the mitered ends and install the SSG gutters to the frame at the head horizontal and secure with SPZ1. The gutters must butt together in the corner. Tool a fillet bead of sealant along the back side of the gutter at the joint formed at the corner. Remove the remaining excess sealant at the mitered joint.

8. Tool the sealant at the tops of the vertical mullions as shown in Figure 72. Refer to Volume 2, page 25 of the S-8000 Unitized Curtain Wall Assembly Instructions for more information.

Silicone

Sealant

Figure 70

SSG Gutter

WC16 Isolator Gaskets

SILL

SPZ1

HEAD

Silicone

Sealant

SPZ1

WC16

SSG Gutter

Figure 69

Note! Critical seal! The sealant must be thoroughly tooled and blended over the adjacent surfaces all around the sealant contact areas shown in Figure 71. This seal occurs at the top of each vertical mullion.

Figure 72 Figure 71

EFCO 2009 Page 38

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 4

Section 14 - Inside 90° Corner Captured Unit Glazing : C. Adapter and Cover Installation

9. Slide in WC19 gasket and LC23 spacer into the gutter starting at the jamb end. LC23 spacer runs continuously and is flush with the ends of the gutter on the jamb end and butts together at the corner. WC19 runs continuously, overhangs 3” on the jamb end, and wraps around the corner on one side approximately 3” to butt seals together. See Figure 75 below.

10. Clean the sealant contact surfaces of the gutters on the mitered ends with an approved solvent or cleaner. Apply a bed of sealant that will cover the areas where the silicone splice sleeve will be applied.

11. Apply the silicone splice sleeve in two pieces. Smooth the splice down onto the gutter, forcing out all air bubbles.

12. Apply sealant around the edges of the splices and tool smooth and water tight.

Apply the two piece

silicone splice sleeve.

LC23 Horizontal Stack Joint Spacer Gasket

Captured Gutter

Figure 74

WC19 Horizontal Stack Joint Seal Gasket

sealant and butt

HEAD

Apply silicone

ends together.

WC19 Horizontal Stack Joint Seal Gasket

LC23 Horizontal Stack Joint Spacer Gasket

Figure 73

Apply sealant around

the splice sleeve and

Apply a bed of sealant that will cover the areas where the silicone splice sleeve will be applied.

tool smooth.

Figure 75

EFCO 2009 Page 39

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 4

Section 14 - Inside 90° Corner Captured Unit Glazing : C. Adapter and Cover Installation

13. Insert 17K1 glazing retainer into 17B5 stack sill glazing adapter and roll into position. Insert 17K0 glazing retainer into 17B1 gutter and roll into position. The glazing retainers will be flush with the ends of the adapters and butt together in the corners. No sealant is necessary for this step.

14. Drive in WC22 wedge gasket between 17K0, 17K1 and the glazing infill. Start in the center, then move to the ends crowding in 4% t0 5% extra gasket. Do not stretch the gasket during application. Trim WC22 to the same length as 17K0 and 17K1 less the miter. Refer to Volume 2, page 26 Figures 73 -76 of the S-8000 Unitized Curtain Wall Assembly Instructions for more information.

WC22

17K0

HEAD

17K1

17B1

17B5

WC22

SILL

17B5

WC22

17K1

Figure 76

EFCO 2009 Page 40

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 4

Section 14 - Inside 90° Corner Captured Unit Glazing : C. Adapter and Cover Installation

15. Slide WC20 bulb gasket into one of the 17E7 glazing adapters and both 17A2 captured vertical fin bars. Exercise care to avoid stretching the gasket during installation. Let the bulb gasket run approximately 1/4” longer on each end than 17A2 and 17E7. The bulb gasket must be installed prior to applyin g 17E7 and 17A2.

16. Crimp the bulb in place to prevent slippage during unit installation. Crimp at each end of the adapter, and then 24” on center.

17. Roll the 17A2 captured vertical fin bar into the isolator in each vertical mullion of the assembled unit (Refer to Volume 2, page 27, Figures 79 and 80 of the S8000 Unitized Curtain Wall Assembly Instructions). Crowd the bulb gasket so it is flush with each end of the fin bar during fin bar installation. The fin bar runs between the gutter and the stack sill glazing adapter with approximately 1/16” gaps at each end for clearance.

18. Roll the 17E7 adapters into the isolator into the corner mullion of the assembled unit. (See Figure 78 and 79 below).

19. Adjust the 17B5 stack sill adapter so that it is flush with the 17A2 vertical fin bar on each end at the jambs as shown in Figure 78 of Volume 2, page 27 of the S-8000 Unitized Curtain Wall Assembly Instructions.

WC20 Fin Bar Bulb Gasket

Figure 78

17E7

HEAD

WC20 Fin Bar Bulb Gasket

Insert 17A2 into the isolator and roll into position.

WC20 Fin Bar Bulb Gasket

Insert 17E7 corner mullion glazing adapters and roll into position.

WC20 Fin Bar Bulb Gasket

17E7

SILL

Insert 17A2 into the isolator

and roll into position.

Figure 77

Figure 79

EFCO 2009 Page 41

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 4

Section 14 - Inside 90° Corner Captured Unit Glazing : C. Adapter and Cover Installation

20. Using an approved solvent or cleaner, clean the surfaces of the mullions at the intersection of the intermediate horizontal and the jamb vertical.

21. Apply a heavy bead of sealant at the intersection of the intermediate horizontals and verticals. Refer to Volume 2, page 28, Figure 83 of the S-8000 Unitized Curtain Wall Assembly Instructions for more information and details.

22. Clean the ends of 17B9 captured glazing adapter.

23. Apply beads of sealant to each end of 17B9 as shown in Figure 81.

24. Roll the 17B9 captured glazing adapter into the isolator at the horizontal as shown in Figures 82 and 83. This must be done immediately after the steps above, before the sealant begins to cure. Tool the sealant at the ends to make the glazing pocket water tight.

25. Insert HS31 setting blocks between the glazing adapter and the glass at quarter points, or as directed per the final approved shop drawings. Light prying pressure may need to be applied to the glazing adapter to insert the setting blocks into place.

17B9

Figure 81

HEAD

HS31 Setting Blocks (2) per location.

17B9

Figure 82 Figure 83

17B9

Figure 80

SILL

EFCO 2009 Page 42

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 4

Section 14 - Inside 90° Corner Captured Unit Glazing : C. Adapter and Cover Installation

26. Insert 17B8 cover onto 17B9 captured glazing adapter and rotate into place as shown in Figures 85 and 86.

27. Cut the WC22 gaskets approximately 2” longer than the D.L.O. dimension.

28. Drive in WC22 wedge gaskets starting with the gasket on the setting block side of the glazing pocket. The gaskets should be applied starting in the center of the D.L.O., and then working from the ends, work the gasket in place to the center of the lite.

17B8 Cover

HEAD

17B8 Cover

Wedge Gasket

WC22

17B9

Figure 86

WC22 Wedge Gasket

SILL

17B9

Figure 85

Figure 84

EFCO 2009 Page 43

Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 4

Section 14 - Inside 90° Corner Captured Unit Glazing : C. Adapter and Cover Installation

29. Insert 17A3 cover into 17A2 captured glazing adapter at each unit jamb and rotate into place as shown in Figures 88 and 89.

30. Cut the WC22 gaskets approximately 2” longer than the D.L.O. dimension.

31. Drive in WC22 wedge gaskets as shown in Figure 89. The gaskets should be applied starting in the center of the D.L.O., and then working from the ends, work the gaskets in place to the center of the lite.

32. HNC4 joint plugs will be required at the head and sill of the assembled unit frame. Using an approved solvent or cleaner, clean the surfaces of the mullions where the joint plug will be applied.

33. Apply joint plugs as shown and noted in Volume 2, pages 31 and 32 of the S-8000 Unitized Curtain Wall Assembly Instructions.

HNC4 Joint Plug

17A3 Covers

HEAD

WC22 Wedge Gaskets

HNC4 Joint Plug

SILL

17A3 Covers

WC22

17A2 Fin Bar

Figure 88 Figure 89

17A3 Cover

WC22 Wedge Gasket

Figure 87

Wedge Gaskets

HNC4 Joint Plug

EFCO 2009 Page 44

EFCO 8800 Assembly Instructions Vol.4

Specifications and Main Features

Frequently Asked Questions

User Manual

Table of Contents

Section 11 - Outside 90° Corner SSG Unit Glazing : A. Temporary Glazing Locators

Section 11 - Outside 90° Corner SSG Unit Glazing : B. Setting and Caulking Glazing

Section 11 - Outside 90° Corner SSG Unit Glazing : C. Adapter Installation

Section 11 - Outside 90° Corner SSG Unit Glazing : D. Weather Seal Application

Section 12 - Inside 90° Corner SSG Unit Glazing : A. Temporary Glazing Locators

Section 12 - Inside 90° Corner SSG Unit Glazing : B. Setting and Caulking Glazing

Section 12 - Inside 90° Corner SSG Unit Glazing : C. Adapter Installation

Section 12 - Inside 90° Corner SSG Unit Glazing : D. Weather Seal Application

Section 13 - Outside 90° Corner Captured Unit Glazing : A. Temporary Glazing Locators

Section 13 - Outside 90° Corner Captured Unit Glazing : B. Setting and Caulking Glazing

Section 13 - Outside 90° Corner Captured Unit Glazing : C. Adapter and Cover Installation

Section 14 - Inside 90° Corner Captured Unit Glazing : A. Temporary Glazing Locators

Section 14 - Inside 90° Corner Captured Unit Glazing : B. Setting and Caulking Glazing

Section 14 - Inside 90° Corner Captured Unit Glazing : C. Adapter and Cover Installation