Course Catalog : Subject Area




Air Conditioning and Refrigeration Courses Offered @ TNCC

Course Description and Pre-requisites
AIR 134 Circuits and Controls I
(4 credits) 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 3 hours + lab 3 hours = total 6 hours per week.
AIR 137 Air Conditioning Electronics Survey
(2 credits) Prerequisite(s): AIR 134 or departmental approval. Studies electronics and its applications in the HVAC field. Covers computers, programmable controllers, and microprocessors in the HVAC industry. Lecture 1 hour + lab 3 hours = total 4 hours per week.
AIR 154 Heating Systems I
(3 credits) 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 hours + lab 2 hours = total 4 hours per week.
AIR 155 Heating Systems II
(3 credits) 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 II of II. Lecture 2 hours + lab 2 hours = total 4 hours per week.
AIR 156 Heating Systems III
(3 credits) Introduces types of boilers, sizing boilers, sizing radiators and convectors, designing piping systems for steam, hot water and vacuum systems. Includes testing and servicing wet heat systems. Lecture 2 hours + lab 2 hours = total 4 hours per week.
AIR 158 Mechanical Codes
(2 credits) Presents mechanical code requirements for installation, service, and inspection procedures . Uses the BOCA code in preparation for the master's card. Lecture 2 hours per week.
AIR 165 Air Conditioning Systems I
(3 credits) 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. Part I of II. Lecture 3 hours + lab 3 hours = total 5 hours per week.
AIR 171 Refrigeration I
(6 credits) Introduces basic principles of refrigeration. Includes refrigeration systems, cycles, and use and care of refrigeration tools. Studies shop techniques including soldering, brazing, leak testing, tube testing, tube bending, flaring, and swagging. Analyzes mechanical (vapor compression) systems. Assembles and repairs them including evacuating, charring, testing, and electrical repairs. Introduces advanced troubleshooting and repairs for domestic, commercial and industrial units. Includes medium, low, and ultra low temperature systems of the single and multiple unit types. Includes equipment selection, system balancing, and installation procedures. Part I of II. Lecture 4 hours. Laboratory 6 hours. Total 10 hours per week.
AIR 176 Air Conditioning
(6 credits) Presents residential and commercial air conditioning systems, including air conditioning principles, psychometrics and pressure balancing. Includes window units, residential central systems, small commercial (air and water cooled condensers) and automobile units. Lecture 4 hours + lab 4 hours = total 8 hours per week.
AIR 181 Planning and Estimating I
(2 credits) Presents fundamentals of blueprint reading as applied to the building trades. Emphasizes air conditioning distribution, designing and drawing residential and commercial systems, take-off of materials and estimating the cost of the systems. Part I of II. Lecture 1 hour + lab 3 hours = total 4 hours per week.
AIR 210 Air Conditioning and Refrigeration Analysis
(3 credits) Reviews principles of refrigeration and air conditioning. Studies components, types and applications. Includes types of refrigeration systems such as multistage and cascade, selection and balancing of major components, and absorption systems. Lecture 2 hours + lab 3 hours total 5 hours per week.
AIR 235 Heat Pumps
(3 credits) Studies theory and operation of reverse cycle refrigeration including supplementary heat as applied to heat pump systems, including service, installation and maintenance. Lecture 2 hours + lab 2 hours = total 4 hours per week.
AIR 240 Direct Digital Controls (DDC) I
(3 credits) Studies the principals of direct digital controls. Presents common terms used within the HVAC control industry. Describes the function and operating characteristics of sensors, controllers, and final control devices. Describes transfer function for a control devise and details the development of equations for typical control transfer functions. Lecture 2 hours. Laboratory 2 hours. Total 4 hours per week.
AIR 241 Direct Digital Controls (DDC) II
(3 credits) Prerequisite(s): AIR 240. Studies electronics and its applications in the HVAC field. Covers computers, programmable controllers, and microprocessors in the HVAC industry. Describes the construction, operation, and installation of more commonly used HVAC sensors, controllers, and final control devices. Covers the selection of a controller based upon the process characteristics, calibration of a control loop for best efficiency. Describes how to develop flow charts. Lecture 2 hours. Laboratory 2 hours. Total 4 hours per week.
AIR 297 Cooperative Education in Air Conditioning and Refrigeration
(3 credits) Prerequisite(s): Student must have completed at least one academic semester and achieve a "C" or better. Approval of Cooperative Education Coordinator. Supervises in on-the-job training in approved business firms or governmental organizations. Designed to provide supervised on the job training to complement course work in air conditioning and refrigeration technology. The work is coordinated by the Cooperative Education Coordinator - contact hours will vary.
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