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[DOC File]SECTION 15820 - DUCT ACCESSORIES
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Backdraft dampers. Manual-volume dampers. Fire and smoke dampers. Duct silencers. Duct-mounted access doors and panels. Flexible ducts. Shop Drawings: Detail equipment assemblies and indicate dimensions, weights, loadings, required clearances, method of field assembly, components, location, and size of each field connection. Detail the following:
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[DOCX File]23 33 00 - DOA Home
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Install manual volume dampers in each branch duct and for each grille, register, or diffuser as far away from the outlet as possible while still maintaining accessibility to the damper. Install so there is no flutter or vibration of the damper blade(s).
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[DOCX File]Michigan State University
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SECTION 233300 - AIR DUCT ACCESSORIES. GENERAL. RELATED DOCUMENTS. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section. SUMMARY. Section Includes: Backdraft and pressure relief dampers. Manual volume dampers. Fire dampers. Smoke dampers
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[DOC File]SECTION 15820 - DUCT ACCESSORIES
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MANUAL BALANCING DAMPERS. GENERAL. SECTION INCLUDES. Round, remote cable operated balancing dampers suitable for application in HVAC systems with velocities to 1,500 fpm (7.7 m/s). SUMMARY. Section 233100 – HVAC Ducts and Casings (Previously 15810). Section 230913.13 – Actuators and Operators (Previously 15900). REFERENCES
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[DOCX File]Section 23 31 00 - HVAC DUCTS AND CASINGS
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Install volume dampers at points on supply, return, and exhaust systems where branches extend from larger ducts. Where dampers are installed in ducts having duct liner, install dampers with hat channels of same depth as liner and terminate liner with nosing at hat channel.
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[DOC File]SECTION 233313-Dampers
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Install dampers at locations as indicated on the drawings and in accordance with manufacturer’s instructions. DO NOT compress or stretch damper sleeve or frame into the duct or opening. Handle dampers using the frame. Do not lift or move damper using blades or control shaft. END OF SECTION. Specification Guide for Control Dampers November 2008
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[DOC File]SECTION 233300 - AIR DUCT ACCESSORIES
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SECTION 233300 - AIR DUCT ACCESSORIES. GENERAL. DESCRIPTION. This section describes medium and low pressure HVAC duct accessories, sealants and tapes, flexible connectors, combination fire/smoke dampers, access doors, spin-in fittings, extractors, drain pans, back draft dampers, and airflow measuring stations.
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[DOC File]SECTION 233113 – DUCTS AND DUCT ACCESSORIES
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Dampers in ducts with pressure classes of three (3) inch wg or less shall have axles full length of damper blades and bearings at both ends of operating shaft. Tie Bars and Brackets: Galvanized steel. Low-Leakage, Steel, Manual Volume Dampers:
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[DOCX File]Section 23 31 00 - HVAC DUCTS AND CASINGS
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E.Duct accessories exposed to the air stream, such as dampers of all types (except smoke dampers) and access openings, shall be of the same material as the duct or provide at least the same level of corrosion resistance.
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[DOC File]SECTION 233113 - METAL DUCTS - Bio Shield Tech, LLC
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Where ducts pass through fire-rated interior partitions and exterior walls, install fire dampers. Comply with requirements in Section 233300 "Air Duct Accessories" for fire and smoke dampers. Protect duct interiors from moisture, construction debris and dust, and other foreign materials.
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Duct dampers manual