EFCO 526 Series - Manual (Page 3)

EFCO 6/2012 Page 3
Series 526 Impact Installation Instructions
SECTION I: General Notes and Guidelines
The Series 526 is a thermally broken impact framing system that is designed for impact resistance of
windborne debris. It can be used as a single-span storefront window wall, a punched opening
system, or a ribbon window system. Various glazing capabilities allow the 526 to be used as
either wet sealed or dry gasket glazed. Both the wet sealed and the dry glazed are outside glazed.
The dry glazed system can be inside glazed also except the transom above the door.
The Series 526 thermally broken impact system contains primarily stock length material with
in-the-field fabrication. Entrance doors are also an integrated part of this system, utilizing frame
members and hardware that accommodate doors and door hardware that will withstand impact from
windborne debris.
1. Check the shop drawings, installation instructions, and glazing instructions to become thoroughly
familiar with the project. The shop drawings take precedence and include specific details for the
project. The installation instructions are of a general nature and cover the most common
conditions encountered.
2. Check all materials on arrival and be sure you have everything required to begin installation.
See Section II “PARTS IDENTIFICATION CHART” for parts cross-referenced.
3. All work should start from benchmarks and/or column centerlines as established by the
architectural drawings and the general contractor. Installers should check building construction
for compliance with architectural documents to ensure the proper window system foundation is
available before installation.
4. All materials are to be installed plumb, level, and true.
5. Protect materials after erection. Cement, plaster, alkaline solutions, and acid based materials
can be harmful to the finish. Clean exposed finished surfaces with a mild detergent and water.
No abrasive cleaning agent should be used.
6. Throughout these instructions the term “SEALANT” will appear. For the purposes of these
instructions, sealant is to be defined as the following:
SEALANT - A weather resistant, gunnable liquid filler which when cured provides a resilient,
flexible (± 50% movement capability) air and water seal between similar and dissimilar
materials.
All sealant must meet ASTM C 920, CLASS 50.
NOTE: All sealant must be compatible with all surfaces where adhesion is required, including
other sealant surfaces. All frame surfaces should be clean, dry, and frost free. If a primer is
required, it must be applied to clean surfaces. All perimeter substrates shall be clean and
properly treated to receive sealant.
NOTE: These installation instructions are general in nature, a supplement to the
approved shop drawings, and must be used in conjunction with those drawings.