HVAC Apprenticeship Course Materials The course materials listed below are required as part of the HVAC Apprenticeship program at College of Western Idaho. Download HVAC Apprenticeship Course Materials (PDF) Document <p> This browser does not support PDFs. <a href="https://cwi.edu/media/55548/download?inline=1#view=FitH&toolbar=1">Download PDF</a> </p> PDF not displaying? Reload viewer