EFCO 5500X Outside Glazed - Manual (Page 53)

EFCO 2012 Page 53
Series 5500 XTherm ™ Curtain Wall Assembly and Installation Instructions
Section 13 - Glazing Preparation
1. First attach vertical Pressure Plates and the Horizontal pressure plate into position using #13 x 5/8” S.S. Hex Head screws. Locate screws 6” O.C. and at a
maximum of 3” from the ends of each pressure plate. Torque screws to 80 inch-pounds. When possible, work from the center outward on the horizontals and
from the sill upward on the verticals
2. In cold weather, first torque all pressure plate screws to 40 inch-pounds. Once all four sides have been clamped down , torque all screws to 80 inch-pounds.
3. Seal all joints between the vertical and horizontal plates with sealant which will provide a water and airtight joint.
Note: The glazier should always place a screw in the vertical pressure plate opposite each horizontal. This is necessary to create a maximum control
of pressure on the mullion plug, which provides the critical sealing function.
Step 3