A/C and Refrigeration (AIR) at Germanna Community College


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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 123 - Air Conditioning and Refrigeration III
Psychometric properties of air, heat load and gain calculation, heated and chilled water systems, duct, design, air distribution and air comfort requirements. Part I of II.
Lecture 2-3 hours. Laboratory 2-3 hours. Total 4-6 hours per week.
3-4 credits
AIR 124 - Air Conditioning and Refrigeration IV
Psychometric properties of air, heat load and gain calculation, heated and chilled water systems, duct, design, air distribution and air comfort requirements. Part II of II.
Lecture 2-3 hours. Laboratory 2-3 hours. Total 4-6 hours per week.
3-4 credits
AIR 158 - Mechanical Codes
Presents mechanical code requirements for installation, service, and inspection procedures . Uses the BOCA code in preparation for the master's card.
Lecture 1-2 hours per week.
1-2 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
AIR 276 Detailed Outline