Thank you for enrolling! Class Time: 7:30 am to 5:00 pm Enrollment Confirmation with class location and local hotel information will be emailed within 24 hours. Exam Prep Student Manual & Study Guide is delivered at class sign-in Remember, you must have your personal copies of the exam reference books for class and for your PSI exam. A complete set of the codebooks required for your license exam are sold in our contractor bookstore for $1,395.00. Call the TTI Contractor Bookstore for assistance (919) 805-9900 You’re in good hands, Michael Pratl, the instructor for this course is a licensed mechanical contractor in North Carolina, Georgia, South Carolina and Florida; he’s been designing and delivering HVAC Exam Prep programs that are cost-effective and easy to use for over 25 years.