User manual DA-LITE POLACOAT IN-WALL REAR PROJECTION SCREENS

[. . . ] The POWER In PRESENTATION PRODUCTS Handling and Care of POLACOAT IN-WALL REAR PROJECTION SCREENS DA-LITE SCREEN COMPANY, INC. 3100 North Detroit Street Post Office Box 137 Warsaw, Indiana 46581-0137 Phone: 574-267-8101 800-622-3737 Fax: 574-267-7804 www. da-lite. com e-mail: info@da-lite. com HANDLING The shipping crate must always be shipped, stored and handled in an upright position ­ Never Lay Flat!Exercise caution while unpacking so as not to abrade, scratch or mar the screen surfaces. It is best to handle projection screens by their edges only and wear clean cotton gloves. UNPACKING 1. [. . . ] The polished surface should always be installed so that it faces the projector and the matte surface should therefore always face the audience. If screen has anti-glare coating, the anti-glare surface should always face the projector. UNFRAMED GLASS SCREENS Glass screens should be mounted according to standard glazing practices for indoor installation only by those possessing proper knowledge and tools. CLEARANCE AND BITE Recommended clearance and bite are listed in Figure 1 and vary with the thickness of the glass. These recommendations should be strictly adhered to in design and glazing. Inadequate edge clearance can result in glass-to-metal contact which will damage the glass. 1 SETTING BLOCKS Glass screens larger than 2' x 3' or thicker than 1/8" (3mm) should be set on neoprene, EPDM, elastometer or lead setting blocks placed every foot starting 6" from the edge. When this is impractical, setting blocks should always be spaced equal distance from the center of the glass. The length of each setting block should be 0. 1" for each square foot (27mm per square meter) of glass area but never less than 4" (100mm) in length. The setting blocks should be 1/16" (1. 6mm) less than full channel width and high enough to provide the recommended nominal bite and minimum edge clearance for the glass. This is to ensure that the glass will be supported under its entire width and will reduce the risk of misalignment of the setting blocks during installation, either of which will cause point pressures and could result in glass breakage. Face clearances should be provided by a continuous neoprene gasket or spacer to limit point pressures on the glass edge which could develop under loading. FIG. 2 SUGGESTED TOP CLAMPING FOR ACRYLIC PANELS ____ x ____ Viewing Area Overall Panel Size __ x __ "A" Glass HEADER TRIM Steel, Wood or Aluminum Frame "B" "C" NOTE: Grip may be improved with friction tape at "A". Support screen with A wedges at "B" until clamping is completed. #1 HEADER Minimum Face Clearance ("A"): 1/4 in. , 6. 4 mm Bite Dimensions ("B") Glass Thickness Min. #3 SLOT HEADER A 1/4" (6. 4 mm) 3/8" (9. 5 mm) 3/8" (9. 5 mm) 1/2" (12. 7 mm) 1/2" (12. 7 mm) 3/4" (19. 1 mm) Minimum Edge Clearance ("C") Glass Thickness Min. [. . . ] Seller's and manufacturer's only obligation shall be to replace such quantity of the product proved to be defective. NEITHER SELLER NOR MANUFACTURER SHALL BE LIABLE FOR ANY INJURY, LOSS OR DAMAGE, DIRECT OR CONSEQUENTIAL, ARISING OUT OF THE USE OF OR THE INABILITY TO USE THE PRODUCT. BEFORE USING, USER SHALL BE ABLE TO DETERMINE THE SUITABILITY OF THE PRODUCT FOR THEIR INTENDED USE AND ASSUMES ALL RISK AND LIABILITY WHATSOEVER IN CONJUNCTION THEREWITH. 52511 Rev. [. . . ]