ARLINGTON, Va. - The Air Conditioning Contractors of America (ACCA) has announced that its updated ANSI/ACCA 5 QI – 2010 Standard (HVAC Quality Installation Specification) is now available as a free, downloadable PDF at It is also available in print form for purchase from the ACCA online bookstore at

ACCA said the QI Standard was updated in 2010 in response to stakeholder-requested changes. New sections on ventilation and hydronics were added, extensive edits and clarifications were incorporated, geothermal systems were specifically mentioned, additions were made to the definitions, and updates made to the bibliography.

Newly-revised to support the 2010 QI Standard are the Technicians Guide for QI and the homeowner and building owner checklists. For more information on these items, visit

To assist those doing field verifications on equipment installed to the ACCA 5 QI – 2010 Standard, the ANSI/ACCA 9 QIvp Standard (HVAC QI Verification Protocols) has been updated and will be released in February 2011 for an ANSI public review period; the QIvp Standard is expected be available later in 2011.

For more information, visit

Publication date:01/31/2011