Refrigeration II HVAC 9058 Email to a Friend Our Refrigeration II course builds on the concepts covered in our HVAC 9029 Refrigeration and Air Conditioning I course. Learn about pressure-enthalpy charts and calculations, air conditioning psychometrics, motors, load calculations, piping, two-stage refrigeration and controls. Prerequisite(s) You must have completed our HVAC 9029 Refrigeration and Air Conditioning I course or an approved equivalent. Contact Information 416-415-5000, ext. 4861 email@example.com Course Section(s) Available Class dates and registration for the upcoming year (September 2018 to August 2019) will be available on this website after noon (12 p.m.) on Wednesday, July 4, 2018. Please visit this page again on that date at that time. Some courses require you to purchase a textbook. The cost of the textbook is not included in the course fee unless otherwise indicated. If there is a textbook assigned for this course, it will be listed on the bookstore website.