This option provides access to the most recent ASHRAE Handbook PDF, published annually in June. The Handbook PDF is “stamped” with your name and email, and downloadable as many times as you need the file. Users can download the entire Handbook or a single chapter, in either IP or SI Units. Those joining before June 1, 2022 will receive the 2022 ASHRAE Handbook—Refrigeration (PDF) in June 2022.