Register with an HVAC school in Pennsylvania. Select a program in your area and set up a meeting to enroll. Contact administrators at Admiral Peary Vocational Technical School, for example, or Butler County Area Vocational Technical School. Complete the necessary registration forms and sign up for in-class or online learning programs.
Download instructional software and read textbooks related to HVAC education. Study materials related to circuit wiring, air properties, soldering, switches, refrigeration, air conditioning and heating systems. Take additional courses in computer-aided drafting, geometry, English and physics to broaden your HVAC knowledge.
Complete all technical school programs by taking the American Refrigeration Institute Exam, Refrigerant Recovery Exams and additional tests associated with HVAC certification. Be prepared for eight weeks to two years of study, depending on your selected program.