HVAC 127 - Refrigeration Service Principles (Residential and Commercial)

Students/technicians will be faced with a variety of troubleshooting and routine maintenance situations. The course will offer a comprehensive study in the function (operation) of the refrigeration system. There will be an emphasis on the operation of the individual components in the refrigeration cycle. Components will include compressor, condenser, expansion valve, and evaporator. The students will have hands-on experience installing piping to components, installing accessories, pressure test using nitrogen, pulling a deep vacuum, charging the unit with freon, taking readings, temperature differences, and amp draw on electrical components.Prerequisite: HVAC 121 or consent of department.