A/C and Refrigeration (AIR) at Eastern Shore Community College
Distance Learning
Time of Day
Term
- AIR 116 - Duct Construction and Maintenance
- Presents duct materials including sheet metal, aluminum, and fiber glass. Explains development of duct systems, layout methods, safety hand tools, cutting and shaping machines, fasteners and fabrication practices. Includes duct fittings, dampers and regulators, diffusers, heater and air washers, fans, insulation, and ventilating hoods.Lecture 1-2 hours. Laboratory 2-3 hours. Total 3-5 hours per week.
2-3 credits - AIR 121 - Air Conditioning and Refrigeration I
- 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. Part I of II.Lecture 2-3 hours. Laboratory 2-3 hours. Total 4-6 hours per week.
3-4 credits - AIR 134 - Circuits and Controls I
- Presents circuit diagrams for air conditioning units, reading and drawing of circuit diagrams, types of electrical controls. Includes 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. Part I of II.Lecture 2-3 hours. Laboratory 2-6 hours. Total 4-9 hours per week.
3-4 credits - AIR 154 - Heating Systems I
- 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. Part I of II.Lecture 2-3 hours. Laboratory 2-6 hours. Total 4-8 hours per week.
3-4 credits - AIR 235 - Heat Pumps
- Studies theory and operation of reverse cycle refrigeration including supplementary heat as applied to heat pump systems, including service, installation and maintenance.Lecture 2-3 hours. Laboratory 2-3 hours. Total 4-6 hours per week.
3-4 credits - AIR 276 - Refrigerant Usage EPA Certification
- 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.Lecture 1-2 hours. Total 1-2 hours per week.
Students should have previous training and/or working knowledge of vapor-compression, common service equipment and procedures in HVAC/R.1-2 credits
