EFCO 8800 Series Assembly Instructions Vol.3 - Manual (Page 7)

EFCO 2009 Page 7
Series 8700 / 8800 Unitized Curtain Wall Installation Instructions - Volume 3
7. Apply shear blocks (KV11) for the intermediate horizontals to the unit corner mullion with (4) SM00 (1/4"-10 X 3/4 SL-HW-SMS ZC A) at each intermediate
horizontal location.
Section 7 - Outside 90° Corner Unit Frame Assembly : A. Mullion Subassembly
KV11 Shear
Blocks
Unit Corner
Mullion
Top of
Mullion
Figure 5
Figure 6
KV11 Shear
Block
SMOO Shear
Block Screws
STK3
Alignment
Screw