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r <br />I - <br />W s <br />-t <br />'J <br />c. <br />A. <br />B. <br />D. <br />Machinery Guards; Fully guard drive mechanisms and other <br />moving parts. Provide guards fabricated of steel and ex­ <br />panded metal, rigidly mounted and readily removed without <br />disassembly. <br />D. Submit Manufacturer's Data; <br />1. <br />2. <br />3. <br />4. <br />3. <br />6. <br />7. <br />8. <br />9. <br />10. <br />11. <br />12. <br />13. <br />14. <br />15. <br />Dampers <br />Sound Attenuators and Attenuator Ducts <br />Acoustical Duct-lining <br />Flexible Ducts <br />Insulation and Vapor Barrier <br />Cooling Coils <br />Roof Curbs <br />Louvers <br />Louvered Penthouse <br />Air Filters <br />Eliminators <br />Drip Pans <br />Bird Screens <br />Diffusers, Registers and Grilles <br />Manometers, etc. <br />E. Submit standards compliance and miantenance manuals fort <br />1. <br />2. <br />Cooling Coils <br />Filters <br />PART 2 - PRODUCTS <br />2.01 FLEXIBLE DUCTWORK - LOW PRESSURE <br />Flexible duct for connections to diffusers, to registers <br />or air bonnets if used with prior approval shall be made <br />with factory preinsulatad duct composed of a corrosion- <br />resistant reinforcing wire heli.x permanently bonded and <br />enclosed in Tedlar film, then covered with 1" thick 3/4 <br />lb. density fiberglass insulation blanket sheathed in a <br />vapor barrier laminated to glass mesh. <br />Ductwork must comply with latest NFPA Bulletin 90A and be <br />tested as Class 1 Air duct material, UL Standard 181. <br />C. Engineering data shall be as follows; <br />1. <br />2. <br />K Factor; <br />Vapor Barrier Permeance: <br />60°F <br />3. <br />4. <br />5. <br />6. <br />Temperature Range; <br />UL Raged Velocity: <br />Flame Spread: <br />Smoke Developed: <br />29 of <br />.30 GR/24 hr/M sq./MN hq <br />per ASTM Method E96, <br />Procedure ^ <br />0''F to 180 <br />4000 fpm <br />not over 25 <br />not over 50 <br />Acceptable manufacturers of flexible insulated ducts assem­ <br />bly shall be Ownes-Corning Fiberglass, Glas.« Flex type <br />OC-41 or Thermaflex type M-KA. <br />I <br />15840-2