HVAC/R II is the second year of a four-year training program. Registered Apprenticeship is not necessary to register for this class. This is a theory class. Books, supplies, and personal safety equipment not included. Prerequisite: HVAC/R I. Certificates will not be issued for attendance less than 144 hrs. Topics covered: review from first year, safety, A/C systems, heat pumps, EPA certification, recovery, leak detection, air distribution, and residential load calculations.