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
Table of Contents
Volume 1 of 6
1. General Notes and Guidelines
2. Parts Identification
3. Frame Assembly
Volume 2 of 6
4. Unit Glazing Preparation : SSG and Captured
5. SSG Unit Glazing
6. Captured Unit Glazing
Volume 3 of 6
7. Outside 90° Corner Frame Assembly
8. Inside 90° Corner Frame Assembly
9. Outside 90° Corner Unit Glazing Preparation : SSG and Captured
10. Inside 90° Corner Unit Glazing Preparation : SSG and Captured
Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 4
SECTION PAGE
Volume 4 of 7
11. Outside 90° Corner SSG Unit Glazing
A. Temporary Glazing Locators…………………………......................................
B. Setting and Caulking Glazing ……………………………………………………
C. Adapter Installation………………….……………………………………………..
D. Weather Seal Application…………………………………………………………
12. Inside 90° Corner SSG Unit Glazing
A. Temporary Glazing Locators…………………………......................................
B. Setting and Caulking Glazing ……………………………………………………
C. Adapter Installation………………….……………………………………………..
D. Weather Seal Application…………………………………………………………
5
6 - 7
8 - 12
13
14
15-16
17 - 21
22
Note: Assembly Instructions are provided as a supplement, and should be used in conjunction with
the approved shop drawings.
EFCO 2009 Page 2
EFCO 2009 Page 3
Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 4
Table of Contents
Volume 4 of 7
SECTION PAGE
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
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
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