Principles of electricity as required by HVAC technicians including proper use of test equipment, A/C and D/C circuits, and component theory and operation. Advanced electrical instruction and skill building in installation and servicing of air conditioning and refrigeration equipment including detailed instruction in motors and power distribution, motors, motor controls and application of solid state devices. The student will exhibit knowledge of basic principles of electricity, electrical current, circuitry, and A/C devices; apply Ohm’s law to electrical calculations; perform electrical continuity, voltage and current tests with appropriate meters and demonstrate electrical safety.
Grade Basis: L
Credit hours: 4.0
Lecture hours: 3.0
Lab hours: 4.0
An introduction to the refrigeration cycle, basic thermodynamics, heat transfer, temperature/pressure relationship, safety, refrigeration containment, and refrigeration components. The student will identify the components and explain the application and operation of the basic refrigeration cycle; explain theories of thermodynamics and heat transfer; demonstrate proper application and use of tools, test equipment, and safety procedures; and demonstrate accepted refrigeration applications.
Grade Basis: L
Credit hours: 4.0
Lecture hours: 3.0
Lab hours: 4.0
A study of components, applications, and installation of mechanical air conditioning systems including operating conditions, troubleshooting, repair, and charging of air conditioning systems. Demonstrate systems applications; implement and demonstrate industry accepted refrigerant charging procedures; demonstrate air conditioning system installation procedures; and demonstrate component and part diagnostics and replacement.
Grade Basis: L
Credit hours: 4.0
Lecture hours: 3.0
Lab hours: 2.0
Prerequisites:
A study of the procedures and principles used in servicing heating systems including gas fired and electric furnaces. The student will identify different types of gas furnaces; identify and discuss component operation of gas furnaces; service and troubleshoot gas furnaces; perform safety inspections on gas and electric furnaces; identify unsafe operation of gas furnaces; identify and discuss component operation of electric furnaces; and service and troubleshoot electric furnaces.
Grade Basis: L
Credit hours: 4.0
Lecture hours: 3.0
Lab hours: 2.0
Prerequisites:
An advanced course in application of troubleshooting principles and use of test instruments to diagnose air conditioning and refrigeration components and system problems including conducting performance tests.
Grade Basis: L
Credit hours: 4.0
Lecture hours: 3.0
Lab hours: 2.0
Prerequisites:
Theory of and practical application in the maintenance of commercial refrigeration; high, medium, and low temperature applications and ice machines. The student will explain and apply high, medium, and low temperature systems operation, and explain and apply ice machine and packaged refrigeration system operation.
Grade Basis: L
Credit hours: 4.0
Lecture hours: 3.0
Lab hours: 2.0
Prerequisites:
A study of the properties of air and results of cooling, heating, humidifying or dehumidifying; heat gain and heat loss calculations including equipment selection and balancing the air system. The student will calculate heat loss and heat gain; design a complete duct system; size heating and cooling equipment of the structure; perform a load calculation using Manual J.
Grade Basis: L
Credit hours: 4.0
Lecture hours: 4.0
Lab hours: 1.0
Prerequisites:
A study of heat pumps, heat pump control circuits, defrost controls, auxiliary heat, airflow, 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 the different methods of accomplishing defrost; charge a system correctly in the heating and cooling mode; troubleshoot electrical and mechanical components; perform tests for adequate airflow, and determine the balance point and co-efficiencies of performance (C.O.P.); and define attributes of geothermal heat pump systems.
Grade Basis: L
Credit hours: 4.0
Lecture hours: 3.0
Lab hours: 2.0
Prerequisites: