EFCO WV410 User Manual
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EFCO CORPORATION 2/2014 PART NO. Y007
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WV410 WINDOW - INSTALLATION INSTRUCTIONS
Section I – Product Description and Limitations
The WV410 storefront window system is designed and engineered to be field glazed and installed
with a limited amount of labor and tools. Although the WV410 window is designed to
complement the S401, S402, S403, and S433 center set systems, it may be glazed into any
system with a smooth surface opening that has a minimum depth of 3 7/16”.
The WV410 allows the plane of glass to be equal to that of the S401, S402, S403, and S433
center set systems. The correct location or inset of the WV410 is easily found by measuring out
from the interior surface to the storefront 1/32”. This will allow a 1/32” offset from the storefront
face to the window frame. If the WV410 intermediate mullion is used, the interior face of the
mullion will align flush with the storefront horizontal.
Section II – General Statements and Definitions
The user is encouraged to read and understand all of the instructions prior to proceeding with
installation. These instructions define several configurations and methods of installation that may
or may not apply to your project.
The instructions covered in this manual are pertinent to the S401, S402, S403, and S433 systems.
Consult approved shop drawings for special applications not covered herein.
The following terminology will be utilized throughout these instructions and has been included to
better orient the reader to the areas discussed.
Storefront Opening: Storefront or other mounting surface for the window are typically called
D.L.O. (Day Light Opening).
WV410 Frame: The interior mounting and fixed portion of the operable window.
Vent: The operable and glazed portion of the window.
Intermediate mullion: The adaptor system designed to allow the windows to be stacked side by
side in a dual or ribbon application.
The steps and details on the following pages have been developed to aid in the assembly and
installation of the WV410 storefront window system.