Heat Pumps


In order to receive a refund,  or if you need to withdraw or transfer classes you must submit your request by email to cwl@grayson.edu, 7 business days prior to the course start date.





A study of heat pumps, heat pump control circuits, defrost controls, auxiliary heat, air flow, and other topics related to heat pump systems. The student will be able to explain a reverse cycle system; list the mechanical and electrical components for the heat pump operation; and explain the operation of heat pump modes including cooling, heating, defrost, emergency heat, and auxiliary heat mode. Identify and explain different methods of accomplishing defrost; charge a system correctly in the heating and cooling mode; troubleshoot electrical and mechanical components; perform tests for adequate air flow; and determine balance point and co-efficiency of performance (C.O.P.); and define attributes of geothermal heat pump systems. (64 hrs)


  • HART 1007 Refrigeration Principles
  • HART 1001 Basic Electricity
  • or Instructor consent

Class Dates & Times:

  • 1/18/2022 - 3/10/2022
  • Wednesday/Thursday
  • 5:00pm - 9:50pm
  • Career and Technical Center (CTC 117), Main Campus


  • $440- Updated based upon 2021/2022 tuition rates and mandatory fees.


This class is offered through the Center for Workplace Learning as a mirrored course. Students may take the course for non-credit and if they so choose, may transfer the course to credit. A student may transfer up to 9 hours of mirrored course work to the credit side.