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Air Conditioning Technology: Refrigeration AOS


The Air Conditioning Technology program is designed to prepare students to meet the growing needs of the residential, commercial, and industrial air conditioning, heating, and refrigeration industries. This program prepares students for careers as heating and cooling service technicians, installers, lab technicians, and facilities maintenance mechanics. Coursework in the areas of air conditioning, heating, electricity, electronics, design, installation, and troubleshooting are reinforced with hands on laboratory practicum. A scientific calculator, digital multi-meter, electronic breadboard and hand tools are required.
Goals & Outcomes
Goal 1 To prepare the students to successfully pass Section 608 of the EPA
  • Students successfully pass EPA section 608 licensing exam
Goal 2 To prepare the students to be safe and competent HVAC&R technicians
  • Student will follow safety procedures
  • Students will demonstrate ability to troubleshoot oil and gas heating systems and develop a corrective action plan
  • Students will demonstrate ability to troubleshoot split air conditioning systems and develop a corrective action plan
  • Students will demonstrate ability to troubleshoot commercial refrigeration systems and develop a corrective action plan
Goal 3 The ability to apply basic technical concepts to the solution of HVAC&R electrical systems
  • Students will be able to employ measurement techniques and laboratory apparatus for verification of refrigeration, heating, and air conditioning electrical circuit operation
Goal 4 To prepare students to communicate effectively
  • Students will construct and confidently deliver clear written and oral laboratory experiment reports
Goal 5 To prepare students to interact effectively in a diverse society
  • Students will collaborate in laboratory activities to complete assigned projects
  • The student will demonstrate openness toward diverse points of view, and draw upon knowledge and experiences of others to function as a team member
  • The graduate will complete the DGV requirement
Goal 6 To promote environmental awareness & proper refrigerant handling
  • Students will follow proper refrigerant usage procedures as outline by the Montreal Protocol & the Clean Air Act of 1990
Goal 7 To prepare students to demonstrate information literacy
  • Students will use traditional and contemporary information technology
  • Students will identify, access, and appropriately use authoritative sources of information
First Semester
ED100 College Seminar
This course is an opportunity for students to develop the skills necessary to be successful in college. Students learn the importance of the faculty-student and advisor-advisee relationship, develop time management techniques, apply effective study skill techniques, recognize the implications of living in a diverse society, utilize college resources, and explore career and transfer requirements. Collaborative projects are included. Students matriculated in a degree program must take this course in their first term of study. See when this course is offered ...
ET105 Computer Cont Fund
This introductory course covers the personal computer and its software for electrical service technicians. It includes a survey of fundamental personal computer hardware: the keyboard, microprocessor, mouse, disk drives, and printers. It introduces DOS and Windows operating systems and hands-on experience with software packages such as word processing and spreadsheets. It concludes with an introduction to BASIC, which is used to solve practical problems in the electrical/electronic field. (Fall Semester) See when this course is offered ...
ET108 Refrigeration 1
This course covers basic physics as applied to refrigeration and air conditioning. Topics include flaring and soldering techniques, compressor construction, domestic refrigeration, and characteristics of automatic controls. See when this course is offered ...
ET111 Electrical Systems
This course provides the basic knowledge and skills necessary within any electrical service technician program. Topics include electrical units and metric prefixes; Ohm’s Law; series and parallel DC resistive circuits; electrical energy and power relationships in DC circuits; AC sine wave generation; mutual inductance; inductive and capacitive reactance; instantaneous values of voltage and current; and real and apparent power. Troubleshooting techniques and strategies to identify, localize, and correct malfunctions are examined. Co-requisite: MA105 Technical Mathematics 1 See when this course is offered ...
MA105 Technical Math 1
This course covers the four fundamental operations on integers, rational numbers, and real numbers. It includes the study of weights and measures, exponents and radicals, factoring, and linear equations, with an emphasis on technical applications. See when this course is offered ...
PEXXX Physical Education Elective
Second Semester
ET104 Systems Diagrams
This course covers the types, application, and use of electrical/electronic drawings. It includes schematic diagrams and symbols as well as the operation of electro-mechanical devices. The course differentiates between schematics and wiring diagrams. It develops the use of block diagrams, schematics, ladder-logic diagrams, wiring diagrams, assembly drawings, and bills of material. Topics include Programmable Logic Controllers (PLCs), Basic Relay PLC Instructions, PLC Timers and Counters, and PLC programs in the form of PLC ladder diagrams. Prerequisite: ET111 Electrical Systems See when this course is offered ...
ET209 Refrigeration 2
This course covers the components of refrigeration for commercial and industrial systems. It includes systems requirements and the application of components to develop built-up systems. Prerequisite: ET108 Refrigeration 1, or VT133 Refrigeration and Air Conditioning 1. (Fall semester) See when this course is offered ...
ET220 Air Conditioning Principles
ET220 Heating and Air Conditioning 1 C-3 P-2 Cr-4 This course covers calculations of heat loss and gain based on residential and commercial levels. Topics include humidification; dehumidification; air mixture problems; and determination of U factors to enhance calculation accuracy. Additional topics include ventilation, exhaust loads and standards, and a working background in psychometrics. The course starts with simple heat properties of air and will progress to complex air mixture properties. See when this course is offered ...
Restricted Elective (Choose one)
ET107 Introduction to Solar Thermal
This course provides an introduction to the basic components, operation and installation of solar thermal systems. The primary emphasis areas focus on domestic hot water, swimming pool heating, and combination space and hot water heating systems. Characteristics of solar radiation and site survey methods, solar collector performance, types of solar thermal systems, and economics of solar water heating are discussed. See when this course is offered ...
ET123 Proper Refrigerant Usage
This course covers the impact of refrigerant on the global environment. Topics include ozone destruction, climate change, and EPA standards for the safe usage and handling of refrigerants. Additional topics include the Montreal Protocol and Clean Air Act of 1990. See when this course is offered ...
ET127 Modern Industrial Practice
This course presents a broad introduction of topics related to industrial and manufacturing environments. Topics include safety and workplace hazard awareness, quality practices and measurement methods, modern manufacturing processes and production methods, and an awareness of maintenance procedures in manufacturing environments. See when this course is offered ...
ET167 Intro to Photovoltaics
ET167 Introduction to Photovoltaics C-2 P-2 Cr-3 This course introduces fundamental concepts in photovoltaics in applications related to electrical power generation. Topics include types of photovoltaic systems and applications, solar radiation and resource determination, site assessment, and units of measurement common to solar systems. Measurement and instrumentation equipment as well as related tools, including safety and personal protective equipment (PPE), are discussed. Solar electrical systems including solar panels, inverters, charge controllers, batteries, and balance of system components are presented, with relevant aspects of electrical and mechanical discussed. Fundamental concepts of system sizing, cost, and economic analysis are presented. Prerequisite: ET101 Technical Electricity 1 or ET151 Circuits 1. See when this course is offered ...
PEXXX Physical Education Elective
Third Semester
EN110 Oral&Writn Communctn
This course covers the effective oral and written contexts of occupational communications. It includes practice in oral presentations, business letters, resumes, memos, instructional materials and reports, and visual aids. It is designed specifically for A.O.S. degree programs. Prerequisite: An appropriate placement test result; or successful completion of DS051 Essential Reading & Study Skills, or SL115 ESL4: Advanced Reading, and successful completion of either EN099 Introduction to College English or SL116 ESL4: Advanced Composition. See when this course is offered ...
ET221 Air Conditioning Systems
ET221 Heating and Air Conditioning 2 C-3 P-4 Cr-5 This course introduces combustion techniques in oil and gas furnaces. It covers coil cells, stack controls, oil primary controls plus safety devices. Basic principles are applied to problem-solving in heat transfer. Types of systems involving residential and small commercial heating and air conditioning are covered. Split systems, hydronic systems, electric heat, heating and air conditioning controls, and package equipment are discussed along with heat pumps. Corequisites: ET108 Refrigeration 1 or VT133 Refrigeration and Air Conditioning 1. See when this course is offered ...
ET223 Transport Refrig
This course covers the refrigerant and electrical controls used in transport refrigeration. Topics include problems unique to the industry and fundamental approaches to gasoline and diesel engine principles. Prerequisite: ET209 Refrigeration 2. See when this course is offered ...
ET234 Elec Wire & Code 1
This course is an introduction to the art of electrical wiring. Installation of electrical equipment provides the student with the opportunity to combine related information and manipulative skills with the practical aspects of wiring methods for complete electrical installations and systems. All temporary laboratory wiring is installed in compliance with the current National Electrical Code and provides experience in cable, conduit, surface raceway, and service entrance installations. Corequisite: ET111 Electrical Systems. See when this course is offered ...
PEXXX Physical Education Elective
Fourth Semester
BM150 Principles of Entrepreneurship
This course is designed to provide a basic understanding of entrepreneurship and the challenges of starting and operating a small business. Emphasis is placed on creating and successfully leading a business entity by developing a sustainable competitive advantage. Topics include self-assessment, planning, decision-making, legal forms of business, identifying and leveraging business opportunities, capital formation, start-up issues, the need for social responsibility and ethics, and how to develop long-term relationships with customers, suppliers, and employers. A major course requirement is the presentation of a realistic business plan. See when this course is offered ...
ET222 Systems Design
This course covers refrigerant piping techniques and designs for commercial and industrial use. Refrigeration load calculating and equipment selection for commercial and industrial applications and proper air handling techniques are studied. Prerequisites: ET209 Refrigeration 2 and ET220 Heating and Air Conditioning 1. (Spring semester) See when this course is offered ...
ET224 Modern Hydronic Sys
ET224 Modern Hydronic Systems C-2 P-2 Cr-3 This course covers the design and installation of modern hydronic (water-based) heating and cooling systems in residential and small commercial buildings. Topics include hydronic heat sources, fluid flow-in pipes, circulators, terminal units, system sizing, distribution piping layout, controls, valve selection, expansion tanks, freeze proofing, and balancing. Co-requisite: ET220 Heating and Air Conditioning 1. See when this course is offered ...
ET226 HVAC Diagnostics
This course covers diagnostic techniques for HVAC/R systems. Topics include commercial refrigeration and supermarket equipment. Students utilize computers and simulations to analyze, test, and repair gas, oil, and heat pump systems. Prerequisite: ET209 Refrigeration 2. See when this course is offered ...
ET230 AC Motors and Controls
This course is intended for the heating, refrigeration, and air condition technicians. It provides HVAC students with theory and practicum in motors and controls, networking protocols, and automated building systems. The course has a blend of theory and practice suitable for vocational-technical students or industry practitioners who wish to upgrade their backgrounds. Electrical principles, components, meters, schematics, and systems are discussed and applied to modern small and large scale installations. Prerequisite: ET102 Technical Electricity 2 or permission of the Dean for Mathematics, Engineering, Physical Sciences, and Applied Technology. See when this course is offered ...
PEXXX Physical Education Elective

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