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v , ' <br /> SUGGESTED SPECIFICATION <br /> Furnish and install louvers as hereinafter specified where shown on Louvers shall be Ruskin Model ELF6375DX or ELF6375DXH <br /> plans or as described in schedules. Louvers shell be stationary extruded 6063T5 aluminum construction as follows: <br /> drainable type with drain gutters in each blade and downspouts in Frame: 6'(152)deep.ELF6375DX -.081"(2.1)nominal wall <br /> jambs and mullions. Louvers shall have a minimum of 57% free thickness. ELF6375DXH - .125° (3.2) nominal wall <br /> area based on a 48"wide x 48°high(1219 x 1219)size.Stationary thickness. <br /> drainable blades shall be contained within a 6'(152)frame.Louver <br /> components (heads, jambs,sills, blades,& mullions) shall be fac- Blades: ELF6375DX 081" (2.1) nominal wall thickness. <br /> tory assembled by the louver manufacturer. Louver sizes too large ELF6375DXH 125" (3.2) nominal wall thickness. <br /> for shipping shall be built up by the contractor from factory assem- Drainable blades are positioned at 371/2° angle and <br /> bled louver sections to provide overall sizes required. Louver spaced approximately 529/32'(150)center to center. <br /> design shall limit span between visible mullions to 10 feet(3)and Screen: 3/4"x.051'(19 x 1.3)expanded,flattened aluminum in <br /> shall Incorporate structural supports required to withstand a wind- removable frame. <br /> load of 20 lbs. per sq. ft. (.96kPa) (equivalent of a 90 mph wind Finish: Select finish specification from Ruskin Finishes <br /> [145 KPH]wind—specifier may substitute any loading required). Brochure. <br /> Published louver performance data bearing the AMCA Certified <br /> Ratings Seal for Air Performance&Water Penetration must be sub- <br /> mitted for approval prior to fabrication and must demonstrate pres- <br /> sure drop and water penetration equal to or less than the Ruskin <br /> model specified. <br /> PERFORMANCE DATA <br /> AMCA Standard 500 provides a reasonable basis for testing and The louver system should be designed with a reasonable safety <br /> rating louvers.Testing to AMCA 500 is performed under a certain factor for louver performance. To ensure protection from water <br /> set of laboratory conditions. This does not guarantee that other carryover,design with a performance level somewhat below maxi- <br /> conditions will not occur in the actual environment where louvers mum desired pressure drop and.01 oz./sq.ft.of water penetration. <br /> must operate. <br /> WATER PENETRATION <br /> Test size 48" wide x 48" high (1219 x 1219) <br /> Beginning point of water penetration at.01 oz./sq.ft. is 1023 fpm (312 m/min). <br /> 0.3 <br /> (3.23) <br /> 025 <br /> (2.69) <br /> N <br /> 0 <br /> L. <br /> LL <br /> a- <br /> o 0.2 <br /> (2,15) <br /> L Q <br /> is Ifs a <br /> 5 <br /> U "�' (1.61) <br /> c c <br /> o <br /> -o r[) <br /> c <br /> t0 <br /> 0.1 <br /> (1.08) <br /> N <br /> rB <br /> 5 <br /> O 0.05 <br /> (.54) <br /> 0 <br /> 900 1000 1100 1200 1300 1400 <br /> (274) (305) (335) (366) (396) (427) <br /> Free Area Velocity in feet and (meters) per minute <br /> Standard air.075 lb/ft' <br /> /%, <br />