EFCO 8800 Series Assembly Instructions Vol.4 - Manual (Page 20)

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
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 S-
8000 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.
Figure 32
Insert 17F7 corner mullion glazing
adapters and roll into position.
Insert 17A6 into the isolator
and roll into position.
WC20 Fin Bar
Bulb Gasket
WC20 Fin Bar
Bulb Gasket
Insert 17A6 into the isolator
and roll into position.
Insert 17F7.
Figure 33
Figure 34
WC20 Fin Bar
Bulb Gasket
17F7
HEAD
SILL