Issue link: http://iaqnet.uberflip.com/i/637209
ACR The NADCA Standard • 2013 4 FOREWORD Assessment, Cleaning, and Restoration of HVAC Systems (ACR The NADCA Standard) is unique in that it 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 the National Air Duct Cleaners Association (NADCA), along with associated organizations. It is based on reliable principles, review of applicable industry literature and information, and practical experience. This Standard establishes minimum performance requirements for assessing new and existing HVAC systems, evaluating the cleanliness of HVAC system components, determining the need to clean and cleaning and restoring systems to a verifiable cleanliness level. The Standard also focuses on preventing job-related hazards, such as exposure to workers and occupants, and cross-contamination to the indoor environment. This document is written for use by those involved in the HVAC cleaning and restoration industry including specifiers, consultants, contractors and end users. Users of this document should stay updated and informed about changes in the industry and implement changes in technology and procedures, as appropriate, while following applicable federal, state, provincial, and local laws and regulations. All HVAC cleaning and restoration projects are unique and, in certain circumstances, common sense, experience, and professional judgment may justify deviation from this Standard. It is the responsibility of the contractor, or others relying on this Standard, to verify on a case-by-case basis, that application of this Standard is appropriate. When in doubt, use caution and seek additional professional guidance. Users of this document assume all risks and liabilities resulting from use of, and reliance upon, this Standard. ACR is a living document that is subject to change as more information regarding the HVAC cleaning and restoration industry becomes available and advancements are made in technology and practice. ACR 2013 will be reviewed, evaluated, and validated through application in the field and thereafter revised and improved as deemed necessary.