HVAC Systems Duct Design, 5th Edition

SMACNA - HVAC Systems Duct Design, 5th Edition

The fifth edition of HVAC Systems Duct Design Manual presents the methods and procedures for designers to properly design an HVAC air distribution system. This manual provides the HVAC system designer detailed information on duct design, duct fitting selection, examples, calculations and tables. In addition to the basic engineering principles for the sizing of HVAC ductwork systems, the manual also provides detailed information on: - air distribution materials, - methods of construction, - economics of duct systems, - duct system layout, - pressure losses, - fan selection, - duct leakage, - acoustic considerations, and - Testing, Adjusting & Balancing

ASTM F1005-91(2024)

Standard Practice for HVAC Duct Shapes; Identification and Description of Design Configuration

1.1 This practice covers the identification of design configurations and descriptive nomenclature for sheetmetal HVAC ductwork shapes frequently used in shipbuilding. This practice also covers parametric dimensions of these shapes. (See Table 1 .) 1.2 This practice does not cover the location of seams or joints within a shape or the method of joining shapes together. 1.3 Since this practice is not measurement sensitive, it is applicable whether inch-pound or SI metric dimensions are used. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

SMACNA 1966-2005

HVAC Duct Construction Standards - Metal & Flexible

The third edition of the HVAC Duct Construction Standards û Metal and Flexible is intended primarily for commercial and institutional duct construction. The standard contains tables and details for constructing ductwork for ╜ö to 10ö wg positive and negative pressures. This edition improves upon the second edition with expanded pressure class tables, separate tables for TDC/TDF construction and expanded tables for round duct construction including 6ö wg positive and negative pressure and sizes up to 96ö. New in this edition is an engineering and design chapter to provide additional information to design professionals, double-wall construction details, new casing construction details and additional accessory items. The standard is applicable for construction using uncoated steel, galvanized and stainless steels and a limited range of aluminum ducts. This standard has been adopted in the ICC International Mechanical Code. Includes soft metrics.

CSA A440.4-2019

Window, door, and skylight installation

Preface This is the fourth edition of CSA A440.4, Window, door, and skylight installation. It supersedes the previous editions published in 2018 and 2007 and in 1998 under the title Window and door installation. The Standard has been extensively rewritten to include up-to-date installation materials and techniques. The members of the Subcommittee have attempted to strike a balance between performance and prescriptive requirements for the window installation techniques described in this Standard. In general, an objective performance approach has been taken with detailed prescriptive requirements given only for installation methods that, in the experience of the Subcommittee members, require special attention to avoid problems with fenestration products after installation. The intent is to allow flexibility to adapt to the wide variety of existing installation practices and different wall and roof construction techniques and preferences, and to give guidance for new construction techniques and installation practices that, inevitably, will emerge over time. This edition introduces a new Annex H which provides some information on how climate change could impact fenestration product design and application. This Standard was developed to address issues that can adversely affect the performance of fenestration products when installed in building walls and roofs. Performance issues related to installation can affect not only the buildings in which the fenestration products are installed, but also the performance of the fenestration products with respect to the requirements contained in the following Standards: • AAMA/WDMA/CSA 101/I.S.2/A440-17, North American Fenestration Standard/Specification for fenestration products; • CSA A440S1:19, Canadian supplement to AAMA/WDMA/CSA 101/I.S.2/A440-17, North American Fenestration Standard/Specification for Fenestration Products; • CSA A440.2:19, Fenestration energy performance; and • CSA A440.3:19, User Guide to CSA A440.2:19, Fenestration energy performance. This Standard has been developed in compliance with Standards Council of Canada requirements for National Standards of Canada. It has been published as a National Standard of Canada by CSA Group. Scope 1.1 This Standard sets forth methods for both new installation and replacement installation of factory assembled windows, exterior doors, and skylights that are intended for installation in low-rise buildings and buildings used primarily for, but not limited to, residential occupancy where the windows, doors, and skylights (including window wall) are R, LC, or CW class within the application of AAMA/WDMA/CSA 101/I.S.2/A440. Note: The effectiveness, safety, and durability of installed fenestration products depend on the choice and quality of materials and design, adequate assembly, the support system, and proper installation. Improper installation of fenestration products might reduce their effectiveness, including excessive condensation; unacceptably high levels of air, water, and sound leakage; and deterioration of the wall and roof systems into which they are installed. 1.2 This Standard provides minimum requirements for the installation of fenestration products including windows, doors, and skylights. This Standard addresses issues that could compromise the performance of the fenestration product as established by testing to the requirements of AAMA/WDMA/CSA 101/I.S.2/A440. Where installation methods are not specifically addressed in this Standard or in the installation instructions of the manufacturer of a fenestration product, a design professional should be consulted for a solution consistent with the intent of the minimum requirements and principles in this Standard. 1.3 Annex H introduces the issue of climate change and its associated effects on fenestration in buildings. It is anticipated that fenestration designers will need to incorporate changes in climate loads resulting from climate change into fenestration product design. It is also anticipated that adjustments will need to be made to installation detailing. Annex H provides some information on these topics for consideration by building design professionals, authorities having jurisdiction, and installers. As information on climate change evolves, so too will the requirements of this Standard. The application of this Standard requires a working knowledge of applicable federal, provincial, and local (municipal) building codes and regulations specifically concerning, but not limited to, required means of egress and requirements for safety glazing. 1.4 This Standard does not apply to the a) selection of fenestration products for a given application; b) selection of other products for use in the installation; c) installation of storm windows or storm doors; d) maintenance of installed fenestration products; e) rebuilding of fenestration products; or f) fabrication of fenestration products, whether such fabrication takes place in a factory or at the installation site. Note: For product selection information, see CSA A440S1. 1.5 This Standard does not purport to address all of the safety problems associated with its use. It does not set out requirements relating to the safety of the person installing the units. It is the responsibility of the installer to obtain necessary health and safety training and to follow proper procedures for safe handling and application of installation materials and fenestration products. 1.6 This Standard assumes that its users are familiar with the terminology, procedures, and requirements of good building practice. Some requirements and guidance are included in this Standard, but the installer should also refer to information available from installation material and fenestration product manufacturers. 1.7 This Standard does not address the qualifications and skills that an installer should possess. It assumes familiarity with the fundamentals of low-rise building construction in Canada as described in Division B, Part 9 of NBC 2015 and of installation techniques for fenestration products normally available in Canada. Although guidance is provided in the manner of installation of fenestration products, it is not a training manual. 1.8 In this Standard, "shall" is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; "should" is used to express a recommendation or that which is advised but not required; and "may" is used to express an option or that which is permissible within the limits of the Standard. Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material. Notes to tables and figures are considered part of the table or figure and may be written as requirements. Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application. 1.9 The values given in SI units are the units of record for the purposes of this Standard. The values given in parentheses are for information and comparison only.

SMACNA HVAC Duct Systems Inspection Guide, 4th Edition

SMACNA - HVAC Duct Systems Inspection Guide, 4th Edition

The fourth edition contains guidelines for inspection of commercial HVAC duct systems for compliance with SMACNA/ANSI HVAC Duct Construction Standards, Metal and Flexible, (4th edition), Fibrous Glass Duct Construction Standard (8th edition) and Phenolic Duct Construction Standards (1st edition). It reviews materials and reinforcement of duct systems, as well as assembly and supports of ducts. The Fire, Smoke and Radiation Damper Guide (6th edition) also summarizes the installation, maintenance, and inspection of fire life safety dampers. The Grease Duct Construction Reinforcement Standards (1st edition) covers common construction and reinforcements for Type I grease ducts. Checklists are included for ductwork and fire dampers. Valuable as a study guide for the HVAC Duct Construction Standards and for learning inspection procedures in general. Includes soft metrics.

SMACNA 016-2012

HVAC Air Duct Leakage Test Manual

This American National Standard, ANSI/SMACNA 016-2012, covers revised leakage criteria and builds on the proven methods for testing ductwork for air leaks from the first edition. Contains updates to the expected leakage rates for ductwork constructed to the SMACNA HVAC Duct Construction StandardsùMetal & Flexible, duct leakage test procedures, recommendations on use of leakage testing, types of test apparatus and test setup and sample leakage analysis. Includes a new educational chapter for designers and specifiers, to aid in the specification and implementation of duct leakage and testing methods.

ANSI/ASHRAE 52.2-2025

Method of Testing General Ventilation Air-Cleaning Devices for Removal Efficiency by Particle Size

Establishes a test procedure for evaluating the performance of air-cleaning devices as a function of particle size. Describes a method of laboratory testing to measure the performance of general ventilation air-cleaning devices. The method of testing measures the performance of air-cleaning devices in removing particles of specific diameters as the devices become loaded by standardized loading dust fed at intervals to simulate accumulation of particles during service life. The standard defines procedures for generating the aerosols required for conducting the test. The standard also provides a method for counting airborne particles of 0.30 to 10 m in diameter upstream and downstream of the air-cleaning device in order to calculate removal efficiency by particle size. This standard also establishes performance specifications for the equipment required to conduct the tests, defines methods of calculating and reporting the results obtained from the test data, and establishes a minimum efficiency reporting system that can be applied to air-cleaning devices covered by this standard. Dual units of measurement.

ANSI/ASHRAE 120-2022

Method of Testing to Determine Flow Resistance of HVAC Ducts and Fittings

Establishes uniform methods of laboratory testing of HVAC ducts and fittings to determine their resistance to airflow. May be used to determine the change in total pressure resulting from airflow in HVAC ducts and fittings. The test results can be used to determine duct flow losses in pressure loss per unit length. Fitting losses are reported as local loss coefficients. Does not cover interpretation of test data. SI units of measurement only.

ANSI/ASHRAE/SMACNA 126-2020

Method of Testing HVAC Air Ducts

Provides laboratory test procedures for the evaluation of HVAC air ducts. Used to determine the structural strength, dimensional stability, durability, and leakage characteristics of HVAC air ducts. SI units of measurement.

ANSI/ASHRAE 185.2-2020

Method of Testing Ultraviolet Lamps for Use in HVAC&R Units or Air Ducts to Inactivate Microorganisms on Irradiated Surfaces

Establishes a test method for measuring the intensity of ultraviolet lamps on irradiated surfaces under typical HVAC&R operating conditions. Defines methods of calculating and reporting results obtained from the test data and establishes a reporting system to be applied to ultraviolet lamps covered by this standard. Dual units of measurement.

ASTM E2816-24

Standard Test Methods for Fire Resistive Metallic HVAC Duct Systems

Note 1: Use of the standard designation ISO 6944 refers to both ISO 6944:1985 and ISO 6944-1:2008. 1.1 These test methods evaluate the fire-resistive metallic HVAC duct system’s fire resistance and fire-engulfment with horizontal and vertical through-penetration firestops. Note 2: The intent of these test methods is to provide authorities having jurisdiction a means to evaluate the fire performance of HVAC duct systems to enable their application and use. 1.2 These test methods evaluate the fire performance of HVAC ducts, including both supply (pressurized: Condition A – Horizontal and Condition B – Vertical) and return (exhaust: Condition C – Horizontal and Condition D – Vertical). 1.3 These test methods evaluate the ability of a HVAC duct system to resist the spread of fire from one compartment to other compartments separated by a fire resistance rated construction when the HVAC duct system is exposed to fire under one or more of the following conditions: 1.3.1 Condition A— Fire exposure from the outside of the horizontal HVAC duct system without openings, 1.3.2 Condition B— Fire exposure from the outside of the vertical HVAC duct system without openings, 1.3.3 Condition C— Fire exposure from the outside with hot gases entering the inside of the horizontal HVAC duct system with unprotected openings, Note 3: Unprotected openings are openings that are not protected by fire dampers. 1.3.4 Condition D— Fire exposure from the outside with hot gases entering the inside of the vertical HVAC duct system with unprotected openings. 1.4 These test methods provide a means for determining the fire-resistance of vertical and horizontal HVAC duct systems, when subjected to the standard time-temperature curve of Test Methods E119 . 1.4.1 Condition A— These test methods provide a means for evaluating a horizontal HVAC duct system, without openings exposed to fire, passing through a vertical fire-separating element. 1.4.2 Condition B— These test methods provide a means for evaluating a vertical HVAC duct system, without openings exposed to fire and outfitted with a horizontal connection, passing through a horizontal fire-separating element. 1.4.3 Condition C— These test methods provide a means for evaluating a horizontal HVAC duct system, with unprotected openings exposed to fire, passing through a vertical fire-separating element. 1.4.4 Condition D— These test methods provide a means for evaluating a vertical HVAC duct system with a horizontal connection, and with unprotected openings exposed to fire, passing through a horizontal fire-separating element. 1.5 These test methods prescribe a standardized fire exposure for comparing the test results of the fire resistive materials and HVAC duct systems. The results of these tests are one factor in assessing predicted fire performance of HVAC duct systems. Using these test results to predict the performance of actual HVAC duct systems requires the evaluation of test conditions. 1.6 The values stated in inch-pound units are to be regarded as the standard. The SI values given in parentheses are for information only, unless the SI units are used consistently to perform all of the test methods referenced herein. In this case, the SI units will be regarded as the standard and will be used in Section 13 , Report. 1.7 The text of these test methods references notes and footnotes which provide explanatory material and (excluding those in tables and figures) shall not be considered as requirements of the fire-test-response standard. 1.8 These test methods specifically exclude evaluating ducts that carry combustibles, flammable vapors, combustible gases, and commercial kitchen ventilation systems commonly called grease ducts or hazardous exhaust ducts, which are tested in compliance with Test Methods E2336 . 1.9 This standard is used to measure and describe the response of materials, products, or assemblies to heat and flame under controlled conditions, but does not by itself incorporate all factors required for fire hazard or fire risk assessment of the materials, products, or assemblies under actual fire conditions. 1.10 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.11 Fire testing is inherently hazardous. Adequate safeguards for personnel and property shall be employed in conducting these tests. 1.12 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM E2816-18 Red

Standard Test Methods for Fire Resistive Metallic HVAC Duct Systems (Standard + Redline PDF Bundle)

ASTM C1290-16(2021)

Standard Specification for Flexible Fibrous Glass Blanket Insulation Used to Externally Insulate HVAC Ducts

1.1 This specification covers the composition, size, dimensions, and physical properties of flexible fiber glass blanket, ductwrap, used to externally insulate HVAC ducts used for the distribution of condition air within the temperature range of 35°F (1.7°C) and 250°F (121°C). 1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.3 When the installation and use of thermal insulation materials, accessories, and systems may pose safety and health problems, the manufacturer shall provide the user appropriate current information regarding any known problems associated with the recommended use of the company's products, and shall also recommend protective measures to be employed in their safe utilization. The user shall establish appropriate safety and health practices and determine the applicability of regulatory requirements prior to use. 1.4 The following safety hazards caveat pertains only to the test methods, Section 13 , in this specification. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM C1290-16 Red

Standard Specification for Flexible Fibrous Glass Blanket Insulation Used to Externally Insulate HVAC Ducts (Standard + Redline PDF Bundle)

ASTM C1668-19

Standard Specification for Externally Applied Reflective Insulation Systems on Rigid Duct in Heating, Ventilation, and Air Conditioning (HVAC) Systems

ASTM C1668-19 Red

Standard Specification for Externally Applied Reflective Insulation Systems on Rigid Duct in Heating, Ventilation, and Air Conditioning (HVAC) Systems (Standard + Redline PDF Bundle)