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EFCO 8800 Series Assembly Instructions Vol.4 User Manual

Page 30

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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

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 applying 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 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 1/6” 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.

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

Insert 17A2 into the isolator
and roll into position.

WC20 Fin Bar
Bulb Gasket

WC20 Fin Bar
Bulb Gasket

Insert 17A2 into the isolator

and roll into position.

Figure 52

Figure 53

WC20 Fin Bar
Bulb Gasket

17E3

Figure 54

HEAD

SILL

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