ToolBox Trades Academy

HVACR, Level 4, is the final installment of a four-part HVACR curriculum. In Level 4 of the series, you’ll build expertise in areas such as hydronics, psychrometrics, installation planning and HVACR support systems. By meeting HVAC Excellence accreditation standards, the curriculum will prepare you for success on HVAC Excellence certification exams.

The 6th Edition revision incorporates coverage of refrigeration, as well as the latest technology and equipment. New on-the-job case studies will prepare you for the scenarios you’ll encounter in the field. Plus, enhanced electrical safety content supports safe interaction with electrical systems, across HVACR functions.