Residential duct systems for new and retrofit homes design and. In addition to the basic engineering guidelines for the sizing of hvac ductwork systems, the manual also. Includes a new educational chapter for designers and. In addition, mills reports that 30% of the estimate of 1. Guide for free standing steel stack construction 2011 smacna. Standard for safetyfactorymade air duct materials and air duct connectors ul 181 underw riters laboratories, inc. Fibrous glass duct liner standard hvac duct construction. Offers options methods, materials and construction for solving energy costs and conservation. Smacna 0162012 hvac air duct leakage test manual, 2nd edition. Principle of duct design in hvac systems cedengineering. 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. This american national standard ansismacna 0062006 contains tables and details for constructing ductwork for.
Download file hvac duct contruction standards smacna. Use a supply duct rated at a minimum positive working pressure of 112 inches of water. Hvac duct construction standards metal and flexible third edition. To retrace your path within a pdf document, click the. Linx industries ductwork is designed and constructed in accordance with the requirements of this duct construction standard. Our policy towards the use of cookies techstreet, a clarivate analytics brand, uses cookies to improve your online experience. Losses compare favorably with elbows with double wall turning vanes in several cases. The fourth edition of hvac systems duct design presents the basic methods and procedures. The third edition of the hvac duct construction standards metal and flexible is intended primarily for commercial and institutional duct construction. The seismic hazard tables with this special edition are limited to the. Revised to be in compliance with smacna hvac duct construction standards, 2nd ed. Supporting this, an underground installation section is added as well as added language on testing and balancing, duct sealing, and duct leakage. Provide balancing dampers at supply, return, and general exhaust branches when connected to larger ducts, as required, for air balancing.
Codes and standards that are standard at the university. Source book for efficient air duct systems in europe. The current 2014 state of the art for air leakage in. Smacna standards and manuals address all facets of the sheet. Test methods for pressure sensitive tapes pressure sensitive tape council. 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. Code changes for duct system standards you should know. Raw duct is fabricated for proprietary duct connection systems. System design includes proper selection and sizing.
Hvac duct support smacna standard autodesk community. Exhaust ducts must withstand a negative pressure of 1. The aes duct specification shall state that duct construction shall, at minimum, meet smacna duct construction standards the aes duct specification shall state tha. Air duct leakage hvac 2011 technical paper pdf file smacna published the hvac air duct leakage test manual in conjunction with the smacna hvac duct construction standards. Ansi, the american national standards institute, has accredited smacna as a standardssetting organization. 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. Standard material for the inner shell of spiral pipe is perforated steel astm a653, with 332 holdes on 316 staggered centers for a free area of 23%. According to smacnas website, the standard expands the scope of the. Recognizing the increased popularity of frp ductwork, this edition is expanded to include commercialhvac applications. 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. Material thickness astm type duct end treatment galvanized 26 18 gauge a653 g60g90 48, 60, 72 paint grip 24 18 gauge a653 a60 60 pvs 24 18 gauge a653 4 x 1, 4 x 4 60 raw both ends aluminum. Hello everyone, i am new to revit, and working in hvac field.
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. A brand new duct system filled with construction dust and debris cannot be expected to operate to clean air standards and can impact performance of the buildings mechanical system. Ordinary heating, ventilating, and air conditioning duct systems read air pressures at 0. Furnish duct listed by ul at flame spread rate of not over 25 and smoke developed rate of not over 50, and complying with nfpa. Smacna round industrial duct construction standards updated. Cleanliness for ducts detailed in new smacna guidelines. Technical standards and manuals developed by smacna members have worldwide acceptance by the construction and code community, as well as local and national government agencies. Theauthorityhavingjurisdictionshouldbereferencedtodeterminewhatlaw, ordinanceorcodeshallapplyintheuseofflexibleairductsand. If the designer does not designate pressure class for duct construction on the contract drawings, the basis of compliance with the smacna hvac duct construction standards is as follows. Comply with ashrae fundamentals handbook and ashrae systems and equipment for design and fabrication of ductwork.
Static pressure plus velocity pressure equals total pressure. Earlier this month, smacna announced the availability of the revised round industrial duct construction standards, 3rd edition, 20, an american national standard, ansismacna 00520. This manual provides the hvac system designer detailed information on duct design and u. Guide for free standing steel stack construction, 3rd. How are the duct designers, and other participants, working with duct design and requirements today. Smacna round industrial duct construction standards. Fibrous glass duct liner standard hereinafter referred to as naima fgdls, or of the sheet metal and air conditioning contractors national association hvac duct construction standards metal and flexible hereinafter referred to as smacna hvac dcs or. In addition to the basic engineering guidelines for the sizing of hvac ductwork systems, the. Corporate headquarters sheet metal connectors, inc. Supports are available in any of the version in revit inbuilt or have to d.
Hvac duct construction standards metal and flexible, 3rd edition 2006 smacna. Ae duct designs shall, at minimum, be in general compliance with smacna standards. Smacna standards and manuals address all facets of the sheet metal and hvac industry, from duct construction and installation to indoor air quality, from energy recovery to roofing, from solar energy to welding. A quick overview of the changes is provided in the front of this manual. This design standard has the purpose of creating a consistent application of ductwork requirements throughout the east side union high school district therefore achieving a. The types of fittings to be used based on the designers calculations of fitting losses i. Nonexclusive, royaltyfree permission is granted to government and private sector specifying. Smacna hvac duct construction standards free download. Hvac duct construction standards metal and flexible third edition iii foreword this third edition of the smacna commercial metal and flexible duct construction standards is another in a long line dating from the 1950s. Smacnas technical resources department fields several thousand technical questions annually from architects, engineers, manufacturers and government personnel. Smacna standards and manuals address all facets of the sheet metal industry, from duct construction and installation to air pollution control, from energy recovery to roofing. Smacna cad standard second edition v notice to users of this publication 1. Revised design manual for commercial and light industrial hvac systems. Pressure in the ductwork is measured in inches of water column inwc.
Standard material for the inner shell of fittings is solid steel. Spiral duct and fittings construction standards air distribution corporation air distribution corporation spiral duct and fittings are manufactured in accordance with applicable smacna, ashrae and spida standards. Engineering standards manual std 342 100 chapter 6mechanical section d30 hvac, heating, cooling, hvac distribution, and tab. The fourth edition of hvac systems duct design presents the basic methods and procedures required to design hvac air distribution systems. Fabricate, support, install, and seal in accordance with smacnas hvac duct construction standards, metal and flexible. Also, both options have been shown, so as to provide this manual as a quick reference to smacna standards. The round industrial duct construction standards, 3rd edition, 20, is. With, you can upload files to the internet and share them to users via websites, forums, social networks facebook, twitter, etc. A comprehensive duct layout indicating sizes, design airflows, pressure class, and routing of the duct system. Rectangular duct construction standards the duct construction standards manual provided to the sheet metal industry by smacna is the most widely used construction guide for engineers and contractors. For rectangular ductwork, new duct stiffener tables are added for easier selection. Ductwork is an essential element of the mechanical space cooling and heating systems. Hvac duct construction standards, metal and flexible, 1 st edition, 1985smacna hvac air duct leakage test manual, 1 st edition, 1985smacna.
It is intended to help commercial duct installation contractors, engineers and building owners towards achieving a clean, fullperformance duct system. Hvac air duct leakage test manual, 2nd edition 2005 smacna. Research proved that duct leakage could be well defined as a function of the static pressure and the surface area of the duct. As a result, it is expected that sealing and testing duct systems will play an increasingly significant role in commercial building construction and remodeling. Ansismacna 0062006 hvac duct construction standards. However, proprietary products such as the aircon flange 4 bolt system represent advances in the. They were placed on your computer when you launched this website.