The support distance for ductwork is typical based upon deflection, stress and cylinder buckling analysis. Lowvelocity design will lead to larger duct sizes, but it may be worth since, doubling of duct diameter. The continuous support design shall be installed in light weight structural systems so as to distribute the equipment weight across two or more structural support members. Sheet metal and air conditioning contractors national association 4201 lafayette center drive chantilly, virginia 201511219 tel 703 8032980 fax 703 8033732.
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. Select products with rating not less than rating of wall or floor being penetrated. A min of 2 of horizontal clearance shall be provided for removal and replacement of roofing and flashing between parallel supports. Howard, iii sheet metal and air conditioning contractors national association. Ansismacna 0062006 hvac duct construction standards. All categories cport roof pipe supports dsa10 duct support series dsa10 duct support series. Round ductwork sizes are expanded to include up to 96 in.
Smacnas first edition of the phenolic duct construction standard provides basic phenolic duct fabrication and installation standards that sheet metal contractors, code officials and design engineers will find useful. Va standard details were updated in early 2009, div 22 and div 26 in early 2014, and the steam portion of div 23 in late 2017. Each detail is available in pdf and autocad dwg formats, go to our secure ftp site for the dwg format drawings. Pdf smacna commercial duct design vuong le academia. Hvac duct construction standards metal and flexible third edition. Smacna 1546 engineer technical aami, asme din standards. Duct construction to conform to the appropriate smacna publications.
Smacna cad standard second edition v notice to users of this publication 1. No part of this work may be reproduced or used in any form or by any means graphic, electronic, or mechanical, including photocopying. Either style, p1100 series or p2558 series can be used. Table given for large duct construction over 120 as trapeze supports and duct reinforcement. The duct will be 18 gage the joints will be tdctdf. Hvac duct support smacna standard autodesk community. Additionally, some of these products have higher maximum velocity ratings. By conducting joint performance testing as described in section vii of the smacna hvac duct construction standards, 2nd ed. Lowvelocity ductwork design is very important for energy efficiency in air distribution systems. Description this is the first edition of the smacna phenolic duct construction standards. Ipebs can look oct, 2017 duct support details pdf, duct support details pdf. Smacna hangers and supports free download as pdf file. Scribd is the worlds largest social reading and publishing site. Documents preceding 3rd edition hvacdcs hvac duct construction standards.
Ansismacna 0062006 hvac duct construction standards eli p. Maximum pipe support spacing should be as per chart 1, row 3 page 312. Typical vertical supports per local building code must be used. Smacna updated this standard in 2006, and it is now ansi approved, entitled smacnaansi 0062006 hvac duct construction standards metal and flexible. Round industrial duct construction standards standard by sheet metal and air conditioning contractors national association, 20. Duct system design guide first edition 2003 mcgill airflow corporation mcgill airflow corporation one mission park groveport, ohio 43125 duct system design i notice. However, the updated standard was published after the deadline for submitting code proposals for the 2009 umc, resulting in its omission. A comprehensive duct layout indicating sizes, design airflows, pressure class, and routing of the duct system. Smacna cad symbols dxf format 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.
Industrial duct is a broad classification of ductwork used in industry for many diverse applications. Smacna ridcs 1st edition 1977 has convenient tables for the material gauges for increased spans. Details of offsets required to route ductwork around obstructions columns, beams, etc. Smacna 48 tappi 754 ul 1,016 uncategorized 1 uop 402 asme bpvc 2019 36. In addition, a variety of options are offered for the ductwork support which are more stringent than the smacna 2005. Smacna 2005 also directs you to utilize smacna round industrial duct construction standards ridcs for longer spans. Standard details one of the most common requests we receive concerns drawings for unistrut support structures. The american national standard ansismacna 0112017 contains language, tables and details for the construction of hand layup, sprayup, and filamentwound frp ductwork from 30 in.
The tables as shown herein are the smacna tables with those interpretations already substituted. Pdf, 83kb c port display jpg, 2mb cport key features and benefits pdf, 117kb cport load rating guide pdf, 97kb dsa101831 revit detail. Thermal expansion not given but must be considered. Comply with ashrae fundamentals handbook and ashrae systems and equipment for design and fabrication of ductwork. When referring to table thru table 110 in the smacna hvac duct construction. Smacna 1520 engineer technical aami, asme din standards. Va standard details div 23 hvac steam all details 1 of 2. This american national standard ansismacna 0222015 contains instruction, tables and details intended to provide basic phenolic duct fabrication and installation standards to the industry. Fabricate, support, install, and seal in accordance with smacnas hvac duct construction standards, metal and flexible. The types of fittings to be used based on the designers calculations of fitting losses i. While ventilating duct in industry is often specified within the range of low pressure and high pressure standards, as described in smacna manuals for these criteria, we usually refer to industrial duct as that which conveys air or gas.
Research proved that duct leakage could be well defined as a function of the static pressure and the surface area of the duct. Book by sheet metal and air conditioning contractors national association, 2006. For sheet metal duct work the space between the hangers should not exceed the distances listed below. Select trapeze member using the total weight on the trapeze and the length of trapeze required to fit the. The tables below contain downloadable standard design detail drawings for typical unistrut applicationsmedical supports, rooftop walkways, and ceiling grid systems. Duct systems fabricated from fibrous glass duct board products qualify under ul 181 as class 1 air ducts. The numbering system relates to specification masterformat 2004.
Hvac duct support smacna standard thanks for your reply, we dont use auto route for ducting either, but after duct has been routed, i needed to know is there anyway to add standard duct support by selecting all of the ducting in one command. Thermoset frp duct construction manual handbook manual guide by sheet metal and air conditioning contractors national association, 06011997. These surfaces resist sludge and mineral deposit buildup and provide a williams and hazen c factor of 150. The sheet metal and air conditioning contractors national associations smacna new architectural sheet metal manual contains the latest windtest reports for custom architectural sheet metal, and much more. Rooftop duct support fully adjustable single support. History of architectural metals first used by the ship building industrylead used in the 1500s with rolled copper use starting in late 1600s new york city hall used copper for roofing circa 1764 a copper roof was used on the rebuilt old senate chamber in 1819. Of duct duct joint 2 angle duct size angle 36 x 18 1 12 x 1 12 x 18. Smacna duct support details pdf wordpresscom pretalblitsou. These documents were the source for many of the recommendations made in these guidelines. The smacna seismic restraint spacing recommendations do not appear to take into account the gross buckling of the pipe or duct, and have been simplified to apply to all seismic hazard levels.
Free pdf ebooks users guide, manuals, sheets about smacna detail for duct support ready for download cal smacna hanger detail. This second edition of the smacna commercial metal and flexible duct construction. Sheet metal and air conditioning contractors national association subject. No changes in these ahri smacna guidelines shall be made without the approval of ahri and smacna. Duct support details pdf, duct support details pdf. Disclaimer of warranties a the sheet metal and air conditioning contractors national association smacna provides its product for informational. Divided by 8 16 and down 17 24 over 24 locate a fastener within 2 of the duct edges. Highvelocity hv duct systems are characterized by air velocities in the range of 2500 to 3500 fpm. Ansi smacna 0062006 hvac duct construction standards eli p. By conducting joint performance testing as described in chapter 11 of the smacna hvac duct construction standards, 3rd ed.
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