The current 2014 state of the art for air leakage in. The smacna hvac system duct design manual offers new loss coefficients for elbows with 45degree throats on square and radius heels and radius throats with square heels. Engineering standards manual std 342 100 chapter 6mechanical section d30 hvac, heating, cooling, hvac distribution, and tab. Source book for efficient air duct systems in europe inive. Disclaimer of warranties a the sheet metal and air conditioning contractors national association smacna provides its product for informational. It is presented in the format of the 1993 ashrae fundamentals handbook, load and energy.
Duct design manual as part of our continuing effort to upgrade the quality of work produced by the heating, ventilating and air conditioning hvac. Download file hvac duct contruction standards smacna. Section 233300 air duct accessories for dampers, soundcontrol devices, duct mounting access doors and panels, turning vanes, and flexible ducts. Ansismacna 0062006 hvac duct construction standards. In keeping with its policy of disseminating information and providing standards of design and construction, the sheet metal and air conditioning contractors national association, inc. Smacna cad standard second edition v notice to users of this publication 1. This 1999 edition of the rounded industrial duct construction standards expands the scope of the 1977 version, and updates the original text to incorporate a revised theory of design, new materials and more user friendly tables.
Ductwork taps shall be conical or clinch collar with 45 degree or boot connections. Duct sound liner that is directly exposed to the air stream shall not to be used, except in exceptional circumstances and only with the permission of the um design manager. Book by sheet metal and air conditioning contractors national association, 2005 view all product details. Smacna subscriptions are annual and access is concurrency based number of people that can access the subscription at any given time. Seismic restraint manual guidelines for mechanical oshpd. Ansi smacna 0062006 hvac duct construction standards eli p. Armed with knowledge from real job examples, you can make informed decisions on product selection and scope resulting in more efficient, less expensive duct systems. Total pressure, velocity pressure, and static pressure. Where fittings of configurations not shown in the hvacdcs are shown on the contract drawings, they shall be constructed as though they were therein. This information presents the basic methods and procedures needed to design hvac air distribution systems.
A number of duct fittings are used to illustrate airflow movement variations through a duct system. Supports are available in any of the version in revit inbuilt or have to d. Residential comfort system installation standards manual, 8th edition. About is a free online file hosting and file sharing service founded in 2014. Automated layout checks can quickly find and accurately correct reliability issues, improving performance and product lifetime of the final product, reducing overall design time, and increasing designer productivity.
Round industrial duct construction standards, 2nd edition. The fourth edition of hvac systems duct design presents the basic methods and procedures required to design hvac air distribution systems. This has included active participation in technical and standards committees for professional organizations that serve the hvac industry, such as ashrae, astm, amca, and smacna. Rightsizing of a heating, ventilation, and airconditioning hvac system is the selection of. Smacna duct design manual smacna duct design manual management accounting exam questions and answers, astronomy 101 from the sun and moon to wormholes warp drive key theories discoveries facts about universe ebook. Smacna round industrial duct construction standards. This manual provides the hvac system designer detailed information on duct design and u. Fibrous glass duct construction standards sixth edition standard for safetyfactorymade air duct materials and air duct connectors ul 181 underw riters laboratories, inc. A comprehensive duct layout indicating sizes, design airflows, pressure class, and routing of the duct system. Smacna hvac duct construction metal and flexible 2005 table 52 allows for a maximum spacing of 12 feet.
Smacna duct design manual hvacr engineering engtips. Pdf smacna commercial duct design vuong le academia. Smacna round industrial duct construction standards updated. Smacna hvac duct construction standards metal and flexible, 3rd ed. Test methods for pressure sensitive tapes pressure sensitive tape council. In addition smacna 2005 stipulates the required wire size, rod, or strap required for proper support. Association web design and development by matrix group. The length of duct used for design purposes that includes the. Duct design quick introduction duct sizing tools and methods recommended duct velocities and noise effects. Hvac duct construction standards, metal and flexible, 1 st edition, 1985smacna. The only calculator in the industry to include the 0.
Losses compare favorably with elbows with double wall turning vanes in several cases. Howard, iii sheet metal and air conditioning contractors national association. Duct system calculator this calculator, complete with detailed instructions, enables hvac system designers to design an average duct system without additional references. Zoning duct design guide for mechanical system designers. This special edition of the smacna seismic restraint manual oshpd edition has been developed to meet the specific requirements of the california office of statewide health planning and development oshpd for hospital and health care facilities construction. The 660 pagebook includes expanded tables for stainless steel and aluminum, expanded tables for duct sizes up to 96 inches in diameter, plus class 5 systems handling corrosives and spiral lockseam pipe.
The round industrial duct construction standards, 3rd edition, 20, is available in both book and pdf formats. Section 233300 air duct accessories for dampers, soundcontrol devices, ductmounting access doors and panels, turning vanes, and flexible ducts. Smacna subscriptions are annual and access is concurrency based number of people that can access the subscription at. This course will discuss the basic fundamentals and principles of air conditioning duct design and layout. The current 2014 state of the art for air leakage in ductwork over the last five years there has been a major shift in the way ashrae has approached air leakage in ductwork. The standard gauges also required by smacna 2005 are also required. In addition to the basic engineering guidelines for the sizing of hvac ductwork systems, the manual also provides related information on economics of duct systems, duct system layout, pressure losses, fan selection, duct leakage, acoustic considerations, and testing, adjusting and balancing tab.
Search book title enter keywords for book title search. The round industrial duct construction standards, 3rd edition, 20, is. Make semco spiral duct your first choice in performance. The colebrook equation value of f must be solved for iteratively. Why should you take this smacna hvac systems duct design part 2 training course. The ducting and clamps are made of similar materials. Duct construction, including sheet metal thicknesses, seam and joint construction, reinforcements, and hangers and supports, shall comply with. Nowhere is this more apparent than in some of the changes to industry standards that are coming down the pike for duct testing and allowable leakage rates. Deficiencies in duct design can result in systems that operate incorrectly. Ashrae 90, this guide addresses the energyefficiency requirements for the design, materials, and equipment used in. Principle of duct design in hvac systems cedengineering. Smacna technical manuals pmsmca plumbing mechanical.
Search book content enter keywords for book content search. Corporate headquarters sheet metal connectors, inc. Wright wrightsoft corporation lexington, ma 02420, usa abstract wrightsoft has developed software applications that design hvac systems that is, select, locate, and size components and their interconnections given. Crimped joint connection length changed from 1 to 2 rectangular branch taps into round added for straight or 45 degree leadinentry 15. Book by sheet metal and air conditioning contractors national association, 2006. Are the rings welded to the saddle and to the duct. Description this authoritative manual is one that design engineers, industrial engineering departments, pollution control authorities, fiberglass manufacturers and installation contractors can rely upon for the proper selection, manufacture, and installation of frp duct systems. Smacna hvac systems duct design manual, fourth edition december 2006, table a. In support type 6, are the angle rings sized the same as the vacuum reinforcing rings for the applications.
This is reflected in the latest revisions of the following ashrae handbooks and standards. Major changes from first editionround, flexible and oval duct revisions duct pressure classes revised to be positive and negative at 2, 4 and 10 w. Papers and guidelines these papers are ed by smacna. Smacna hvac duct construction standards free download. Hello everyone, i am new to revit, and working in hvac field. In comparing duct performance, two elements should be equal in the related designs. Use table d30gen1 local climate information for hvac system sizingdesign. The standard contains tables and details for constructing ductwork for. Resin used shall be the hetron 197 for its fire retardant and corrosion resistant properties. Air flow problems have plagued the hvac industry for years. Utilize other duct design methods such as low velocities, directional changes, etc. Smacna, offers this comprehensive fundamental hvac systems.
Smc tdc, slipdrive and raw sheet metal connectors, inc. Nordfab duct is a clamptogether design using a rolled edge design with a single lever clamp. Provide balancing dampers at supply, return, and general exhaust branches when connected to larger ducts, as required, for air balancing. Ductwork design principles starting with the basics, lets start at the most elementary level of air flow. Hvac duct support smacna standard autodesk community. Industrial systems are designed for a certain pressure positive or negative but that design pressure is not generally termed a pressure class in industrial duct construction. Code changes for duct system standards you should know. Duct cleanliness for new construction guidelines pdf file this guideline is intended to help the commercial duct installation contractor, design engineers and building owners to become more familiar with guidelines to control and reduce contamination during duct installation, and to provide reasonable installation recommendations.