EFCO S5500 Outside Glazed - Manual (Page 18)

EFCO CORPORATION 6/2012 PART NO. Y550
Series 5500 Outside Glazed Installation Instructions
Section III: Typical Anchorage Methods
STEP #7 INSTALL FRAME COMPONENTS – WELDED WIND LOAD ANCHORS
For installations with multi-spans, follow applicable notes from step 6. Match drill the mullion
through the
CENTER of the set of slots in the anchor.
NOTE: The holes must be a minimum of 1” from the back of the mullion in order to clear any steel re-
inforcement located inside the system, as may be required on a job specific basis.
Use a bolt with a flat washer at the bolt head end. At the nut end of the bolt, use a flat washer then a
spring lock washer next to the nut as shown. Shim each bolt as shown.
Important: The nut must be tightened sufficiently to completely compress the spring lock washer.
Back the nut off a quarter to half turn to allow free movement of the connection. The threads of the
bolts must be “staked”, or Loctite must be used to prevent the nut from loosening from the bolt. Re-
move the temporary alignment screws. Refer to the approved shop drawings for anchor locations,
bolt sizes, welding requirements, and other job specific information.
NOTE: When welding, protect installed
metal and glass from weld splatter.
BUILDING
STRUCTURE
Weld to building structure
per approved shop drawings.
Match drill through
center of slots.
TEMPORARY ALIGNMENT SCREW (#12 X
1” TEK SCREW) Note: Screw must be re-
moved from wind load anchor after bolt
installation to allow free movement.
WELDED WIND LOAD ANCHORS
STEEL ANCHOR PER
SHOP DRAWINGS
HIGH IMPACT
POLYSTYRENE
HORSESHOE SHIMS
AT EACH BOLT