Residential Air Conditioning Systems Mechanic 313D Pre-exam HVAC 9056 Exam Preparation Email to a Friend Our Residential Air Conditioning Systems Mechanic 313D Pre-exam course is a review/refresher course intended for those who have acquired the theoretical and practical knowledge required to write the Certificate of Qualification exam for the Residential Air Conditioning Systems Mechanic (313D) licence. Contact Information 416-415-5000, ext. 4861 firstname.lastname@example.org Course Section(s) Available There are no classes currently scheduled for this course. For more information about future offerings, use the contact information listed above. 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.