Breadcrumb 2024-25 Catalog Air Conditioning and Refrigeration ASC 148 ASC 148: HEAT PUMP SYSTEMS Download as PDF Class Program Air Conditioning and Refrigeration Credits 3 Lab Hours 4 Theory Hours 1 Instruction received in this course centers around the basic theory and application of heat pump systems and components. Upon completion students will be able to install and service heat pumps in a wide variety of applications.