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ORANGE COUNTY 233300-1 <br /> <br />Emergency Management Warehouse Building Dehumidification Air Duct Accessories <br /> <br /> <br />SECTION 233300 – AIR DUCT ACCESSORIES 1 <br /> 2 <br />PART 1 - GENERAL 3 <br /> 4 <br /> 5 <br />RELATED DOCUMENTS 6 <br /> 7 <br />Drawings and general provisions of Contract, including General and Supplementary Conditions and Division-1 8 <br />Specification sections, apply to work of this section. 9 <br /> 10 <br /> 11 <br />QUALITY ASSURANCE 12 <br /> 13 <br />UL Compliance: 14 <br /> 15 <br />Construct, test, and label fire dampers in accordance with UL Standard 555, Standard for Fire Dampers. 16 <br /> 17 <br />Construct, test, and label smoke and combination fire/smoke dampers in accordance with UL Standard 18 <br />555S, Standard for Smoke Dampers. 19 <br /> 20 <br />Construct, test, and label ceiling radiation dampers in accordance with UL Standard 555C, Standard for 21 <br />Ceiling Dampers. 22 <br /> 23 <br />NFPA Compliance: Comply with applicable provisions of NFPA 90A and/or NFPA 90B pertaining to installation of 24 <br />ductwork accessories. 25 <br /> 26 <br />AMCA Compliance: 27 <br /> 28 <br />Test and rate airflow dampers in accordance with ANSI/AMCA Standard 500-D, Laboratory Methods of 29 <br />Testing Dampers for Rating. 30 <br /> 31 <br />Test and rate louvers in accordance with AMCA Standard 500-L, Laboratory Methods of Testing Louvers for 32 <br />Rating. 33 <br /> 34 <br /> 35 <br />SUBMITTALS 36 <br /> 37 <br />General: Submittals shall demonstrate compliance with technical requirements by reference to each subsection of 38 <br />this specification. Where a submitted item does not comply fully with each and every requirement of the 39 <br />Specifications, the submittal shall clearly indicate such deviations. Identification requirements for non-complying 40 <br />features of items are very specific. See Section 019913 for exact requirements. 41 <br /> 42 <br />Manufacturer's Data: Submit manufacturer's technical product data for each type of ductwork accessory, including 43 <br />dimensions, capacities, and materials of construction, and installation instructions. Provide specific instructions for 44 <br />installation of fire and smoke dampers to comply with listed installation arrangement. 45 <br /> 46 <br /> 47 <br />PART 2 - PRODUCTS 48 <br /> 49 <br /> 50 <br />AIRFLOW DAMPERS 51 <br /> 52 <br />Low Pressure Manual (Balancing) Dampers: 53 <br /> 54 <br />Construction: Dampers installed in dishwasher exhaust ductwork, return air ductwork in natatoriums, and in 55 <br />other wet locations shall be constructed of Type 316 stainless steel, including shafts and hardware exposed 56 <br />to the airstream. All other dampers shall be constructed of G90 galvanized steel with zinc-plated shafts and 57 <br />hardware exposed to the airstream. Single blade or multiblade volume damper shall be constructed in 58 <br />accordance with SMACNA's HVAC Duct Construction Standards - Metal and Flexible, Figures 7-4 and 7-5. 59 <br /> 60 <br />DocuSign Envelope ID: 7668B866-6C26-485C-9A45-DAAB5D4BD951