Industry Standards, Specifications, and Resources

NADCA General Specifications for the Cleaning of Commercial Heating, Ventilating and Air Conditioning Systems

The General Specifications were prepared by NADCA and describe the minimum requirements necessary to coordinate a successful commercial HVAC system cleaning project. This guideline is for use by building owners, managers and engineers in the development of cleaning specifications.

This document must be modified to accurately account for the unique system variations within an individual building. The use of this specification in and of itself is no guarantee of a successful project. Sufficient coordination by the owner, including the selection of a qualified contractor, is equally as important as a good specification. This document was created for projects performed in the United States of America.

For projects outside of the U.S., users of this specification are advised to consult the applicable laws, standards and regulations of their country to ensure that the contents of this specification do not conflict with such statutes.

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ACR, The NADCA Standard for Assessment, Cleaning & Restoration of HVAC Systems

What is ACR, The NADCA Standard?

ACR, The NADCA Standard is a performance standard that also provides minimum procedural requirements. This Standard has evolved from procedural based guidelines, standards of care, and research originating from NADCA, along with associated organizations. It is based on reliable principles, review of applicable industry literature and information, and practical experience.

What is the difference between the 2013 standard and older versions?

The newly revised ACR brings a condensed procedural document that can be easily referenced during the restoration project. The text has been formatted in a clear and concise manner and has been realigned to follow the flow of an actual HVAC assessment, cleaning and restoration job. This provides the opportunity to locate the information you are looking for quickly and easily.

What does the NADCA ACR Standard provide?

  • The Standard provides you practical, reliable and industry-backed information for:
  • Assessing new and existing HVAC systems
  • Evaluating and verifying the cleanliness of HVAC system components
  • Preventing job related hazards
  • Guiding the cleaning and restoration o f HVAC systems to a specific level of cleanliness.

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Introduction to HVAC System Cleaning Services: A Guideline for Commercial Consumers

This publication serves as a guideline for consumers of commercial HVAC system cleaning services. Among the topics covered in this guideline are the basics of HVAC system cleaning procedures, how to select a qualified contractor and the characteristics of a successful commercial HVAC cleaning job.

Purchase Introduction to HVAC System Cleaning Services

NADCA White Papers

Consumers are encouraged to review NADCA's white papers to learn more about various aspects of HVAC system cleaning including restoring energy efficiency through HVAC air distribution system cleaning, chemical applications in HVAC systems and more.

Review NADCA White Papers