Students working on HVAC equipment outside

Air Conditioning and Refrigeration (AIR)

AIR 121 Air Conditioning and Refrigeration I (3 cr.) Studies refrigeration theory, characteristics of refrigerants, temperature, and pressure, tools and equipment, soldering, brazing, refrigeration systems, system components, compressors, evaporators, metering devices. Presents charging and evaluation of systems and leak detection, explores servicing the basic system. Explains use and care of oils and additives and troubleshooting of small commercial systems. Lecture 2 hours. Laboratory 2 hours. Totals 4 hours per week.

AIR 134, 135 Circuits and Controls I, II (4 cr.) (4 cr.) Presents circuit diagrams for air conditioning units, reading and drawing of circuit diagrams, types of electrical controls. Includes an analysis of air conditioning circuits, components, analysis and characteristics of circuits and controls, testing and servicing. Introduces electricity for air conditioning which includes circuit elements,  direct current circuits and motors, single and three-phase circuits and motors, power distribution systems, and protective devices. Studies the electron and its behavior in passive and active circuits and components. Demonstrates electronic components and circuits as applied to air conditioning system. Lecture 3 hours. Laboratory 3 hours. Total 6 hours per week.

AIR 154, 155 Heating Systems I, II (3 cr.) (3 cr.) Introduces types of fuels and their characteristics of combustion; types, components and characteristics of burners, and burner efficiency analyzers. Studies forced air heating systems including troubleshooting, preventive maintenance and servicing. AIR 154: Lecture 2 hours. Laboratory 3 hours. Total 5 hours per week. AIR 155: Lecture 2 hours. Laboratory 2 hours. Total 4 hours per week.

AIR 158 Mechanical Codes (2 cr.) Presents mechanical code requirements for installation, service, and inspection procedures. Uses the BOCA code in preparation for the Journeyman and Master’s card. Lecture 2 hours per week.

AIR 165 Air Conditioning Systems I (4 cr.) Introduces comfort survey, house construction, load calculations, types of distribution systems, and equipment selection. Introduces designing, layout, installing and adjusting of duct systems, job costs, and bidding of job. Lecture 4 hours per week.

AIR 205 Hydronics and Zoning (3 cr.) Presents installation servicing, troubleshooting, and repair of hydronic systems for heating and cooling. Includes hot water and chilled water systems using forced circulation as the transfer medium. Lecture 2 hours. Laboratory 2 hours. Total 4 hours per week.

AIR 235 Heat Pumps (3 cr.) Studies theory and operation of reverse cycle refrigeration systems as applied to air conditioning, including supplementary heat as applied to heat pump systems including service, installation and maintenance. Lecture 2 hours. Laboratory 2 hours. Total 4 hours per week.

AIR 276 Refrigerant Usage EPA Certification (2 cr.) Prepares HVAC technicians for a refrigerant certification test mandated by the Environmental Protection Agency (EPA). Reviews refrigerant recovery, recycle, and reclamation procedures for service work associated with air conditioning and refrigeration. Examines environmental impact including ozone depletion resulting  from refrigeration utilization. Students should have previous training and/or working knowledge of vapor-compression, common service equipment and procedures in HVAC/R. Lecture 2 hours. Total  2 hours per week.