EFCO 433 Series - Manual (Page 37)

June 2012 PART NO. Y017 Page 37 of 90
Series 433 Triple Set Installation Instructions
SECTION IV: Unit Assembly
Expansion mullions are required in elevations that are over 20’-25’ wide
and can be used with both screw spline and shear block systems.
Note: Clean off all
excess sealant after
assembly.
A. Screw Spline (Offset and Center-Set)
Offset Glazed Assembly With Expansion Mullion
Outside Set, Inside Glazed Shown,
Outside Set, Outside Glazed Similar
4 ½” Head,
Horizontal, &
Sill Similar
Note: Wax Type Lubricate may be
required @ Assembly Fasteners.