EFCO 8800 Series Assembly Instructions Vol.3 - Manual (Page 18)

EFCO 2009 Page 18
Series 8700 / 8800 Unitized Curtain Wall Installation Instructions - Volume 3
Section 8 - B. Inside 90° Corner Unit Frame Assembly
Intermediate
Horizontal
Figure 44
KV12 Shear
Blocks
STDO Shear
Block Screws
Remove excess
sealant from
horizontals.
13. Insert the horizontal onto the shear block and attach with (7) STD0 (1/4”-10 x 1” PL-FH-SMS 18-8 AB) fasteners per shear block. Note: The number and
locations of fasteners may vary. See Figures 44, 45, and 46
14. Seal the end of the horizontals where they project above the corner mullion as shown in Figure 47.
15. Remove all excess sealant from areas that will be exposed to the interior. See Figure 47.
16. Remove excess sealant from gasket reglets and areas where the isolator clips and adapters will later be inserted.
17. Cap seal the fastener at the face of the horizontals as shown in Figure 47.
Figure 45
Figure 46 Figure 47
Cap seal
fastener
heads.
Intermediate
Horizontal
KV12 Shear
Block
Unit Corner
Mullion
Top of
Mullion
Seal the ends of
horizontals to
the vertical.