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Orange County Health Department Improvements Smith Sinnett /2024008 <br />Hillsborough,NC Orange County Asset Management Services <br />AIR DUCT ACCESSORIES 23 33 00 - 1 <br />SECTION 23 33 00 <br />AIR DUCT ACCESSORIES <br />PART 1 GENERAL <br />1.01 SECTION INCLUDES <br />A Backdraft dampers -metal. <br />B Duct access doors. <br />C Duct test holes. <br />D Flexible duct connectors. <br />E Volume control dampers. <br />F Miscellaneous Products: <br />1.Internal strut end plugs. <br />2.Duct opening closure film. <br />1.02 REFERENCE STANDARDS <br />A NFPA 90A -Standard for the Installation of Air-Conditioning and Ventilating Systems;2024. <br />B SMACNA (DCS)-HVAC Duct Construction Standards Metal and Flexible;2020. <br />1.03 SUBMITTALS <br />A Product Data: Provide for shop-fabricated assemblies including volume control dampers,duct access doors, <br />duct test holes,and hardware used.Include electrical characteristics and connection requirements. <br />B Manufacturer's Installation Instructions: Provide instructions for ​fire dampers and combination fire and <br />smoke dampers​. <br />C Project Record Drawings: Record actual locations of access doors and test holes. <br />D Maintenance Materials: Furnish the following for Owner's use in maintenance of project. <br />1.Extra Fusible Links: One of each type and size. <br />1.04 QUALITY ASSURANCE <br />A Manufacturer Qualifications: Company specializing in manufacturing the type of products specified in this <br />section,with minimum ​five​years of​documented​experience. <br />B Products Requiring Electrical Connection: Listed and classified by Underwriters Laboratories Inc.as <br />suitable for the purpose specified and indicated. <br />C All dampers shall be certified to bear the AMCA Certified Ratings Program seal for Air Performance, <br />Efficiency,and Air Leakage. <br />1.05 DELIVERY,STORAGE,AND HANDLING <br />A Protect dampers from damage to operating linkages and blades. <br />B Storage:Store materials in a dry area indoor,protected from physical damage and in accordance with <br />manufacturer's instructions. <br />PART 2 PRODUCTS <br />2.01 AIR TURNING DEVICES/EXTRACTORS <br />A Manufacturers: <br />1.Carlisle HVAC Products​​ <br />2.Elgen Manufacturing,Inc​​ <br />3.Krueger-HVAC,Division of Air System Components <br />4.Ruskin Company <br />5.Titus HVAC,a brand of Johnson Controls​​ <br />6.Or Approved Equal <br />B Multi-blade device with blades aligned in short dimension;steel construction;with individually adjustable <br />blades,mounting straps. <br />2.02 DUCT AIR TURNING VANES <br />A Provide factory manufactured turning vanes in each elbow where inside radius is less than the width of the <br />duct,and in all square or rectangular elbows. <br />Docusign Envelope ID: 2D852F9B-A7CF-462A-9536-444A53AA848A