EFCO 526 Series - Manual (Page 35)

EFCO 6/2012 Page 35
Series 526 Impact Installation Instructions
In some cases, it may be necessary to use a clamping device to get the mullions together
properly, if they cannot be snapped by hand. To do this, place one clamp at the bottom of
the mullions using wood blocks to protect the extrusions. Tighten the clamp until the
mullion halves begin to snap together. Place another set of wood blocks and a clamp at the
middle of the mullions and tighten it. Then repeat the same process at the top. Tighten the
clamps until the mullion halves are pressed together. The sight line should be 2 1/2". It
may be necessary to work from one clamp to the next several times, or move the clamps to
ensure the mullions are snapped together evenly. DO NOT try to hammer the mullion
halves together! This will dent, bend, scratch, or deform the mullions and may cause them
to leak. Ensure that the previous module is fully anchored before installing the next
module.
SECTION VII: Frame Installation
Step 7) Snapping Screw Spline Vertical Mullions Together
Step 8) Anchoring Subsequent Modules
[Fig. 31]
Use a C-Clamp
or Similar
Wood Block
or Similar
After the mullion halves are snapped correctly, ensure that the mullions are plumb and
true. Anchor the head as shown on page 32. If this is the last module in a run, ensure
that the mullion halves are snapped correctly, and install the required shims between the
jamb and condition. Install the head and jamb anchors as shown on pages 31 and 32.
Ensure that the jamb anchors do not separate the last module from the previous. It may
be necessary to shim tightly against the condition to prevent this. Seal and tool all anchor
heads with silicone type sealant.