ACCA “System Cleanliness” Standard Approved by ANSI

Association News

ACCA “System Cleanliness” Standard Approved by ANSI

Air Conditioning Contractors of America (ACCA) has announced that its new standard on “Restoring the Cleanliness of HVAC Systems” has been formally recognized by the American National Standards Institute (ANSI) as a national standard.

According to a news release by ACCA, The System Cleanliness Standard was developed to establish minimum criteria for the cleaning of HVAC systems that require cleaning activities beyond those performed in normal HVAC maintenance and servicing.

The standard has incorporated many of the standards published by the National Air Duct Cleaners Association (NADCA), but the standards are more procedural based. The standard is intended to restore the cleanliness of HVAC systems and outlines the following procedures:

  • Establishing Criteria for HVAC System Cleaning
  • HVAC System Restoration Protocol
  • Post Cleaning Verification
  • Post Cleaning Products and Usage

According to the standard, the need for cleaning may arise when the HVAC system operation has resulted in the buildup of debris which may adversely impact the indoor environment and performance of the system. In those cases, the HVAC system will require cleaning activities beyond those performed in normal HVAC mechanical maintenance and servicing. This Standard has been created to: • Significantly improve the cleanliness of an HVAC system and return it to a reasonable serviceable condition; but, not necessarily to return the system to an “as new” condition. • Allow the contractor and/or owner to determine if replacing certain components of the HVAC system, or possible replacing all of the HVAC system, is a more feasible approach versus undertaking associated cleaning activities.

We are extremely glad to see ACCA recognize the need and benefits of HVAC system cleaning. We incorporate these standards and guidelines with our current standards. Between the NADCA standards and the ACCA standards, we exceed the minimum requirements of both organizations.

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