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BESTT,ED TECHNOLOGY INC <br /> 3.0 MECHANICAL INSTALLATION <br /> 3.1 Overview <br /> LED signs must be installed onto a structure designed to withstand wind load, seismic events, <br /> weight load of ice in winter time, or any other live load the structure might bear. The:structure <br /> must comply with all national and local codes. Because every sign installation is unique,there is <br /> no single procedure for mounting LED signs. <br /> Sign installers must comply with the following requirements or the sign wan-anty will be void: <br /> • Any structure above the sign must either have flashing or extend past the face of the sign. <br /> � DO NOT allow water to pool underneath or on top of the sign. <br /> • DO NOT allow water from structure above to drip directly onto the sign's door seams. <br /> • DO NOT seal the sign in way that restricts hot air from escaping the inside of the sign. <br /> • Comply with all sign ventilation and clearance requirements. Refer to"Ventilation <br /> requirements"below for details. <br /> 3.2 Ventilation requirement <br /> Although the steel sign cases are completely enclosed for weather-proofing,the sign does rely <br /> on natural convection to cool. The sign uses case steel surface as heat sinks to cool the inside <br /> cabinet temperatures. Internal fan(s)mix the air inside the case to bring the internal t.emperature <br /> uniform. <br /> Signs require obstruction-free space for adequate air venrilation between mounting structure and <br /> the top,bottom,and sides of the sign.This is required for all wall,monument,and pole mounted <br /> signs.Make sure to provide a minimum clearance of 1—inch above and below the sign, and a <br /> minimum clearance of 6—inches behind the sign. Otherwise,ventilation air ducts MiJST be <br /> installed evenly spaced around the perimeter of the sign. <br /> 3.3 Mounting the sign <br /> LED signs are pre-drilled at the back and sides for installing steel angle brackets. Based on how <br /> you want to install the LED display, you decide on where and how many steel brackets you want <br /> to install.There are several mounting options you can choose,which are illustrated tielow. <br /> Note:steel brackets are not provided because mounting method chosen varies greatly from one <br /> installation to another.Your sign installer should consult this installation instruction and provide necessary <br /> mounting hardware for proper sign installation. <br /> Iastallation Manual ' <br /> 12 <br />