Start Your Career: By the Numbers
Apply To This ProgramLearn from instructors with experience navigating the challenges of the field.
Master the Systems That Keep Our Spaces Comfortable.
Do you want to help people stay comfortable in their homes, schools, and workplaces? At Ozarks Tech, you’ll develop hands-on skills to install and fix heating and air conditioning systems.
In this program, you’ll learn how to:
- Work with heating, cooling and refrigeration equipment
- Use safety gear and tools
- Read blueprints and follow rules
- Troubleshoot and repair systems
You’ll train with advanced tools and equipment to keep up with the fast-changing HVAC industry. Our instructors will guide you through hands-on learning so you’re ready for real-world jobs.
After graduation, you can work in places like HVAC installation companies, large businesses and corporations, schools and public buildings.
This program is accredited by HVAC Excellence, which means you’re learning the skills employers trust.
Program Information: Heating, Refrigeration and Air Conditioning
Explore our accreditation information, find program contacts and learn more about how to apply for the program.
General Admissions to Ozarks Tech
Admission to Ozarks Technical Community College is open to all individuals who can benefit from its educational programs. A focus of the college mission is on the academic, career and personal goals of the student. OTC may admit you as a First-Time student just completing their high school, GED or HiSET requirements or as a Transfer student coming from another institution finishing up a certificate or degree. For more information, visit OTC Admissions.
Wondering how you’re going to pay for college? At OTC, we believe that cost shouldn’t be a barrier to earning a degree. Our staff will work with you to make a financial plan. To browse the resources available to you, see paying for college.
At Ozarks Tech, we want your transfer process to be easy. We accomplish this goal through articulation agreements. These agreements are an official partnership to match coursework between schools. This gives you a more seamless transition from Ozarks Tech to a four-year institution.
We have established an agreement for this program. This will simplify the transfer of your credits to partner schools. To understand how this degree will transfer, review the current articulation agreements. Be sure to consult with your transfer school to ensure you’re on the right path toward completing your four-year degree.
This program is accredited by HVAC Excellence, PO Box 521, Mount Prospect, IL 60056, (800) 726-9696.
OTC is accredited by the Higher Learning Commission (hlcommission.org), an accreditation agency recognized by the U.S. Department of Education. Our current accreditation status with the HLC is displayed on the page linked below. Our next comprehensive evaluation will be in 2030-2031. View more on OTC Accreditation.
Program Outcomes
Department Chair for Heating, Refrigeration & Air, Electrical Trades and Construction Trades
417-447-8275
Find Your Community
Getting involved is a great way to build connections and find your community on campus. With a variety of clubs and organizations and campus events it’s easy to find your people.
Thinking about earning your bachelor’s degree?
After your A.A.S., you may continue your education at a four-year institution. Bear in mind:
- Admission requirements vary
- Credits may transfer on a course-by-course basis
Course Information
Discover overview information, course sequences and specific course descriptions. Or, view the full catalog to see all the details.
Heating, Refrigeration and Air Conditioning (A.A.S.)
A.A.S. Degree: 62 Hours
The demand for highly skilled technicians in the heating, air conditioning and refrigeration fields will continue to grow in the coming years. Students are exposed to the most technically advanced equipment and knowledge to stay abreast of the rapid changes that are taking place in the HVAC industry. Courses cover every aspect of the trade to give the student a comprehensive understanding of HVAC systems. Skills learned will allow the student to find many different types of entry level HVAC-related careers. This program is accredited by HVAC Excellence, PO Box 521, Mount Prospect, IL 60056 (800) 726-9696
Heating, Refrigeration, and Air Conditioning Program Requirements – 43 Credit Hours
Heating, Refrigeration, and Air Conditioning Program Requirements – 43 Credit Hours
- HRA 102: Basic Refrigeration Theory and Application
Basic Refrigeration Theory and Application
This introductory course provides students through lecture and lab the basic knowledge and skills required to comprehend the refrigeration cycle and service the refrigeration system.
- HRA 103: Electricity for Heating, Refrigerant and A/C
Electricity for Heating, Refrigerant and A/C
This is a lecture/laboratory course focused on AC electrical theory, troubleshooting and schematic reading as applied to refrigeration and air conditioning systems.
- HRA 125: Refrigerants and Refrigerant Handling
Refrigerants and Refrigerant Handling
This course offers Lecture/Lab experiences that familiarize the students with the characteristics of the most commonly used refrigerants and retrofitting CFC systems. Refrigerant recovery and evacuation procedures are emphasized and practiced during this course. The course includes administration of the EPA Exam.
Prerequisite(s): HRA 102. - HRA 135: Refrigeration Motors and Controls
Refrigeration Motors and Controls
This course offers Lecture/Lab experiences that familiarize the students with the characteristics of electrical controls and motors in refrigeration, heating and air conditioning systems. The students will learn and wire electrical circuits that are commonly used in refrigeration, heating and air conditioning. Students will learn the fundamentals of electronic control boards used on central air conditioners.
Prerequisite(s): HRA 103. - HRA 180: Air Distribution Systems
Air Distribution Systems
This course offers the knowledge & skill necessary to design, size and fabricate duct systems used in heating and air conditioning. Emphasis will also be given to air quality management and humidification.
- HRA 245: Commercial Refrigeration Systems
Commercial Refrigeration Systems
This course offers lecture/laboratory experiences that provide the student with knowledge of commercial refrigeration systems. Refrigeration & electrical knowledge that has been gained from previous courses will be applied specifically to commercial applications. The student will have the opportunity to work on varied types of commercial equipment. Skills that are needed to troubleshoot a variety of commercial equipment will be acquired.
Prerequisite(s): HRA 102, HRA 103, HRA 135 - HRA 250: Advanced Commercial Refrigeration
Advanced Commercial Refrigeration
This is a lecture/laboratory course that will allow the student to understand the operation of larger commercial refrigeration systems that are used in wholesale, warehouses and industrial settings. Refrigeration and electrical knowledge that has previously been gained will be applied to understand the unique refrigeration components used on these systems. Skills and knowledge needed to size equipment and refrigerant lines will be covered in this course.
Prerequisite(s): HRA 102, HRA 103, HRA 135 - HRA 265: Residential Heating and Air Conditioning
Residential Heating and Air Conditioning
This course offers lecture/laboratory experiences that provide the student with the knowledge and skills needed to install and troubleshoot residential air conditioners and furnaces.
Prerequisite(s): HRA 102, HRA 103. - HRA 270: Advanced Heating and Air Conditioning
Advanced Heating and Air Conditioning
This course offers lecture/lab experiences that provide the students additional opportunities to apply heating and air conditioning knowledge acquired in previous courses or from actual experience. Topics are oriented toward applications of specialized systems such as heat pumps, hydronics and packaged systems.
Prerequisite(s): HRA 265 - HRA 281: Heating, Refrigeration and A/C Capstone Assessment
Heating, Refrigeration and A/C Capstone Assessment
This comprehensive course, using concepts and skills learned from previous HRA courses, will be used to evaluate the students’ knowledge and skills in HVAC. The students will have the opportunity to acquire an HVAC competency certifications during this course to increase their employment opportunities.
Prerequisite(s): HRA 250, HRA 270 . - HRA 290: Co-Operative Ed/Internship or Institutional Elective
Co-Operative Ed/Internship
This course encompasses a supervised work experience in the major field which provides the student with the opportunity to make practical application of the knowledge and skills attained through coursework. An individualized instructional management plan will determine goals to be accomplished. Seminars may also be required.
Prerequisite(s): Completion of 30 credit hours and 2.0 GPA; or advisor's approval. Please see the Department Chair of the specific program area for application. - TEC 285: Occupational Seminar
Occupational Seminar
Note: It is recommended students have 30 hours completed towards their degree program prior to enrolling in this course. Instruction for this course includes career identification, self-assessment, resume’ development, preparation of cover letters, completion of applications for local jobs, learning the online employment application process, research of local companies, jobs available, and current salary ranges, job searching techniques and tools, interviewing skills, follow-up steps after the job interview and on-the-job performance expectations.
- Institutional Elective Credits: 3
Choose a course 100 level or higher from any area of study.
General Education Requirements – 19 Credit Hours
General Education Requirements – 19 Credit Hours
The Missouri Department of Higher Education has identified a common set of general education courses that have been adopted statewide. These courses are called the “CORE 42.” CORE 42 courses are guaranteed to transfer to any Missouri public college or university to satisfy general education requirements.
Courses in knowledge areas below, designated with the CORE 42 logo indicates courses in that area have been evaluated and provided a MOTR number for transfer to all Missouri public institutions of higher education.
Courses that do not have this designation may still transfer to public and private colleges and universities in Missouri and elsewhere, but students are encouraged to check the transfer equivalency website of the institution to which they plan to transfer to confirm.
Please refer to the MDHE Core Transfer Curriculum for detailed information on CORE 42 courses.
Mathematical Sciences – 3 Credit Hours
Mathematical Sciences – 3 Credit Hours
- TEC 108: Applied Technical Mathematics
Applied Technical Mathematics
Course content includes the fundamental processes of mathematics with emphasis on problem-solving techniques. This course covers mathematical principles and concepts applicable to the technical trades utilizing introductory algebra, geometry, elementary trigonometry, and basic statistical methods.
- MTH 110: Intermediate Algebra
Intermediate Algebra
This course is an extension of basic algebra and includes factoring, rational expressions, linear equations, quadratic equations, functions, graphs, radicals, complex numbers and applications.
- MTH 128: Contemporary Mathematics
Contemporary Mathematics
This course provides students with a basic survey of mathematics. Topics include problem solving, modeling, counting methods, probability, statistics and geometry.
- MTH 128S: Cont Mathematics with Support
Cont Mathematics with Support
This course provides students with a basic survey of mathematics. Topics include problem solving, modeling, counting methods, probability, statistics and geometry. MTH 128S will be driven by the same objectives as MTH 128, and satisfy the same requirement. The course design will provide students with more time, support, and individualized instruction to accomplish those objectives.
- MTH 129: Introductory Statistics
Introductory Statistics
This is the first course in statistics for students whose college and career paths require knowledge of the fundamentals of the collection, analysis, and interpretation of data. Topics include distributions, measures of central tendency and dispersion, elementary probability, sampling, estimation of parameters, hypothesis testing, regression and correlation.
- MTH 130: Algebra for Calculus
Algebra for Calculus
This course is a standard course in college-level algebra necessary for further studies in mathematics. Topics include solving equations, systems of equations, and inequalities; properties of functions; polynomial, rational, exponential, logarithmic functions and their graphs.
- MTH 130S: Algebra for Calculus With Support
Algebra for Calculus With Support
This course is a standard course in college-level algebra necessary for further studies in mathematics. Topics include solving equations, systems of equations, and inequalities; properties of functions; polynomial, rational, exponential, logarithmic functions and their graphs. MTH 130S will be driven by the same objectives as MTH 130, and satisfy the same requirement. The course design will provide students with more time, support, and individualized instruction to accomplish those objectives.
- MTH 131: Trigonometry
Trigonometry
This course is a study of trigonometric function and their graphs, identities, equations and applications. Topics include an introduction to polar coordinates, vectors, and solutions of right and oblique triangles.
Prerequisite(s): Grade of "C" or better in MTH 130 or satisfactory score on the ACT. - MTH 138: Pre-Calculus Mathematics
Pre-Calculus Mathematics
This course prepares students for calculus by integrating both college-level algebra and trigonometry. Topics include solving equations, systems of equations, and inequalities; properties of functions; polynomial, rational, radical, exponential, logarithmic, and trigonometric functions and their graphs; analytic trigonometry; and vectors. This course is designed for students with a prior background in algebra and trigonometry.
Prerequisite(s): Grade of "B" or better in MTH 110 or satisfactory score on the ACT. - MTH 140: Analytic Geometry and Calculus I
Analytic Geometry and Calculus I
This is the first course in a three-semester sequence. Topics include an introduction to analytic geometry, limits and continuity, the derivative and differential, the definite integral and applications.
Prerequisite(s): Grade of "C" or better in MTH 131 or MTH 138 or satisfactory score on the ACT. - MTH 141: Analytic Geometry and Calculus II
Analytic Geometry and Calculus II
This is the second course in a three-semester sequence. Topics include techniques of formal integration, applications of definite integration, infinite sequences and series, parametrized curves and polar coordinates.
Prerequisite(s): Grade of "C" or better in MTH 140. - MTH 210: Statistical Methods
Statistical Methods
Students study basic concepts of statistics and probability applicable to all disciplines. Topics include distributions, measures of central tendency and dispersion, elementary probability, sampling, estimation of parameters, hypothesis testing, regression and correlation.
Prerequisite(s): Grade of "C" or better in MTH 128 or MTH 130 or satisfactory score on the ACT. - MTH 214: Discrete Mathematics
Discrete Mathematics
This course provides an introduction to discrete mathematics. Topics include logic, basic counting, discrete probability, recursion, sets and relations, graphs and trees.
Prerequisite(s): Grade of "C" or better in MTH 131 or MTH 138 or satisfactory score on the ACT. - MTH 215: Algebraic Structures
Algebraic Structures
This course provides an introduction to techniques of mathematical reasoning and formal mathematical proof. Topics include logic, set theory, relations, functions, and number theory.
Prerequisite(s): Grade of "C" or better in MTH 140. - MTH 230: Linear Algebra
Linear Algebra
This course is a study of vector spaces, matrices, linear transformations, determinants, quadratic forms, eigenvalues, eigenvectors, canonical forms and inner-product spaces. Emphasis is placed on rigorous proof and the development of mathematical maturity.
Prerequisite(s): Grade of "C" or better in MTH 141. - MTH 240: Analytic Geometry and Calculus III
Analytic Geometry and Calculus III
This is the third course in a three-semester sequence. Topics include vector-valued functions, solid analytic geometry, partial differentiation, multiple integration and line and surface integrals in vector fields.
Prerequisite(s): Grade of "C" or better in MTH 141. - MTH 241: Differential Equations
Differential Equations
This is an introduction to the techniques available for the solution of ordinary differential equations. Topics include first and second order equations, systems of differential equations, Laplace transforms, series solutions, numerical methods and applications.
Prerequisite(s): Grade of "C" or better in MTH 141.
Written Communications – 3 Credit Hours
Written Communications – 3 Credit Hours
- ENG 101: Composition I
Composition I
This course introduces students to college-level reading, thinking, and writing through a series of composition-rhetoric assignments and activities that culminate in a research-supported project. Specifically, students apply critical and creative thinking to evaluate problems, interpret evidence/data, and draw conclusions. As part of this process, students learn to evaluate sources and emerging digital tools for currency, feasibility, truthfulness, credibility, and accuracy. Ultimately, students learn to synthesize knowledge to solve problems. This writing process (thinking, researching, evaluating, and persuading) helps students to develop an essential skill set they can use in their future academic, civic, and professional lives.
or - ENG 100: Composition I With Support
Composition I With Support
This course introduces students to college-level reading, thinking, and writing through a series of composition-rhetoric assignments and activities that culminate in a research-supported project. Specifically, students apply critical and creative thinking to evaluate problems, interpret evidence/data, and draw conclusions. As part of this process, students learn to evaluate sources and emerging digital tools for currency, feasibility, truthfulness, credibility, and accuracy. Ultimately, students learn to synthesize knowledge to solve problems. This writing process (thinking, researching, evaluating, and persuading) helps students to develop an essential skill set they can use in their future academic, civic, and professional lives. English 100 will be driven by the same course objectives as English 101 and satisfy the same requirement.
- ENG 101: Composition I
- ENG 102: Composition II
Composition II
This course continues developing students’ abilities to use research and writing to make informed and ethical arguments; effectively communicating these arguments to professional and expert audiences in a research-supported project. Moreover, the course further develops students’ skills in critical and creative thinking to evaluate problems, interpret evidence/data, and draw conclusions.
Emphasis is placed on honing skills of audience analysis, analytical reading, problem solving, research methods—including both primary and secondary research—and persuasive writing. Also, this course will acquaint students with patterns and conventions of multiple disciplinary communities. This writing process (thinking, researching, evaluating, and applying rhetorical strategy) prepares students for their academic and professional futures.
Prerequisite(s): ENG 100 or ENG 101. - ENG 150: Technical Writing
Technical Writing
This course emphasizes developing the student’s ability to write clearly, concisely and accurately. Students practice collecting, analyzing, interpreting and presenting information in a variety of technical documents used in professional settings while using proper research and documentation techniques, sound visual design principles and effective writing styles suitable for a specific communicative context. Throughout, emphasis will be placed on honing skills in audience analysis, analytical reading, critical thinking, research methods and clear writing.
Prerequisite(s): ENG 100 or ENG 101.
Oral Communications – 3 Credit Hours
Oral Communications – 3 Credit Hours
- COM 100: Introduction to Communication
Introduction to Communication
This course provides an introduction to the study of communication, including interpersonal communication, small group dynamics, and public speaking.
- COM 105: Public Speaking
Public Speaking
This is an introductory course in research, composition, delivery, and evaluation of speeches for a variety of purposes and occasions. Students develop skills in critical listening and analysis through small group and individual activities.
- COM 200: Interpersonal Communication
Interpersonal Communication
This course is designed as an introduction to the theory and practice of interpersonal communication. Students learn how to become both effective and appropriate communicators in a variety of contexts. Students also develop good listening and responding skills, conflict management strategies, sensitivity to language and an understanding of cultural and gender differences.
Prerequisite(s): Grade of "C" or better inENG 100 or ENG 101.
Natural Sciences – 4 Credit Hours
Natural Sciences – 4 Credit Hours
- TES 140: Technical Physics
Technical Physics
This course entails a survey of basic physics for students majoring in technical fields. Students will learn how the concepts of force, work, rate, resistance, energy, power, and force transformation are related to mechanical, fluid, thermal, and electrical systems. Laboratory activities will give the students an opportunity to demonstrate the principles of physics, as presented in lecture.
Prerequisite(s): Grade of "C" or better in TEC 108 or higher - BCS 165: Human Anatomy
Human Anatomy
Microscopic and macroscopic examination of the human body structures and systems are the focus of this course. Students evaluate the integration of the various systems within the entire body. The laboratory provides an opportunity for identification and evaluation of representative human models and slides and dissection of comparable mammalian organ systems.
- BIO 100: Life Science
Life Science
This course covers a study of the biological principles that apply to all living systems. A survey of living organisms with an emphasis on how life functions on earth and how living things have adapted over time is explored. Laboratory activities give students the opportunity to apply biological principles presented in lecture.
- BIO 105: Environmental Science
Environmental Science
This course will survey basic environmental science topics including; how ecosystems function, standards of sustainability, and the impact of humans on the biosphere. Outdoor and indoor laboratory activities provide students with a hands on opportunity to apply principles presented in lecture.
- BIO 160: General Biology I
General Biology I
This course is an introductory biology course for biology majors and minors. It provides an introduction to the concepts of biological structure and function at the molecular and cellular level, genetics and evolution. Students have the opportunity to demonstrate in the laboratory the principles presented in lecture.
- CHM 101: Introductory Chemistry
Introductory Chemistry
This is an introductory course designed to study basic chemical principles. Topics include atomic structure, measurement, bonding, properties of gases, acids and bases, solutions, organic nomenclature, functional groups, carbohydrates, lipids, proteins, and nucleic acids. Laboratory activities give students the opportunity to demonstrate chemical principles presented in lecture.
- PHY 105: Introduction to Physics
Introduction to Physics
This course provides an introduction to basic physics. Students will apply the principles of mechanics, energy, waves, matter and atomic theory. Laboratory activities will give students the opportunity to demonstrate physics principles presented in lecture. A previous college level math course is recommended.
Prerequisite(s): Knowledge of algebra, scatter plot graphing, slope and equation of the line, scientific notation, and unit conversions is recommended. - PHY 110: Introduction to Geology
Introduction to Geology
This course is an introduction to basic geology. Students learn about the principles and applications of mineralogy, petrology, structural geology, geomorphology and historical geology. Laboratory skills necessary for the study of geology are introduced. A previous college level course is recommended.
- PHY 115: Introduction to Astronomy
Introduction to Astronomy
This course provides an introduction to basic astronomy. Students will learn about the composition, dynamics, evolution of planets, stars, and the universe. Laboratory activities will give students the opportunity to demonstrate physics principles presented in lecture. One evening field trip is required. A previous college level math course is recommended.
- PHY 120: General Physics I
General Physics I
This is an algebra based physics course. Students learn about the principles and applications of mechanics, wave motion and heat. Laboratory activities give students an opportunity to demonstrate physics principles presented in lecture. This course is designed for earth science, biology, chemistry, health and medical majors.
Prerequisite(s): Grade of "C" or better in MTH 130 or equivalent (MTH 131 recommended). - PHY 220: Physics Engrs & Scientists I
Physics Engrs & Scientists I
This is a calculus based physics course. Students learn about the principles and applications of mechanics, wave motion and heat. Laboratory activities give students the opportunity to develop the basic skills in data collection and analysis required in physics. This course is designed for pre-engineering, physics, chemistry and pre-med majors.
Prerequisite(s): Grade of "C" or better in MTH 140. - CHM 160: General Chemistry I
General Chemistry I
This course is a study of the fundamental laws and theories of chemical structures and reactions. Topics include: atomic theory, stoichiometry, aqueous reactions, properties of gases, liquids, and solids, periodicity, bonding, thermodynamics, and properties of solutions. This course is recommended for all those majoring in Science as well as Chemistry majors and minors.
Prerequisite(s): Grade of "C" or better in MTH 110 or higher, or satisfactory score on the ACT.and - CHM 161: General Chemistry I Lab
General Chemistry I Lab
The lab emphasizes proper laboratory technique, synthesis, physical studies, qualitative and quantitative analysis, and data manipulation and statistical analysis. This course is recommended for all those majoring in Science as well as Chemistry majors and minors.
Prerequisite(s): Grade of "C" or better in MTH 110 or higher, or satisfactory score on the ACT.
- CHM 160: General Chemistry I
Social and Behavioral Sciences – 6 Credit Hours (include at least one Civics course, PLS 101 or HST 120 or HST 130)
Social and Behavioral Sciences – 6 Credit Hours (include at least one Civics course, PLS 101 or HST 120 or HST 130)
- ANT 101: Introduction to Anthropology
Introduction to Anthropology
This course introduces the student to the four subfields of anthropology: physical/biological, ethnology/cultural, linguistic and archaeological/material. The human condition will be studied using the various methods and theories that are specific to each sub-discipline.
- ANT 220: Cultural Anthropology
Cultural Anthropology
Cultural Anthropology, also known as ethnology, social anthropology or sociocultural anthropology, is the largest of the four ‘fields’ or subdisciplines of anthropology. Cultural anthropologists study the ways in which people live throughout the world and write accounts of cultures, known as ethnographies, to gain insights into the human condition. Cultural anthropology also compares the ways of living, developing concepts and theories that apply to all cultures and making cross-cultural generalizations about human behavior.
Prerequisite(s): ANT 101 or SOC 101. - COM 150: Intro Mass Communication
Intro Mass Communication
The media are everywhere, and they affect almost every aspect of our lives, including our knowledge of the world around us: the decisions we make as consumers and the values we embrace. Print and electronic media are covered in this course.
Prerequisite(s): COM 100 or COM 105. - CRM 210: Intro to Criminal Justice
Intro to Criminal Justice
This is an introductory course in the philosophical and historical background of the American criminal justice system and its primary components: law enforcement, courts, and corrections. Students will examine the organization, purpose, and functions of the three components in the administration of criminal justice.
- ECO 270: Principles of Macroeconomics
Principles of Macroeconomics
This course provides an introduction to the origin and derivation of economic systems. This course includes a look at the structure, organization, operation, and the goals of the United States economic system. A study in basic economic principles, including the role of the government in conducting economic policies (spending and taxes), the role of the Federal Reserve in managing the supply of money, and the role of others (including households and businesses) in determining economic outcomes is included. This course prepares students for further study in economics.
- ECO 275: Principles of Microeconomics
Principles of Microeconomics
This course is an introduction to microeconomic analysis. It is an in-depth look at the behavior of the individual and businesses as it relates to the determination of the price structure, distribution of income, and trade. This course is an examination of the participants and structures of the marketplace.
Prerequisite(s): ECO 270. - GRY 101: World Geography
World Geography
Students in this course learn the role of geography in the economic, political and social development of each of the regions studied and how the various world regions interact with one another.
- HST 105: Ancient and Medieval World History
Ancient and Medieval World History
This course is a survey of human societies throughout the world from the first humans through the ancient and medieval periods. Students will study the interaction of geography and technology with human societies, the impact of diverse religions, beliefs and cultures, the transformation of economic systems, and the formation of governments, states and empires.
- HST 106: Modern World History
Modern World History
This course is a survey of the increasing interconnection of human societies throughout the world from the Age of Exploration through the 21st century. Students will study the changing worldwide impact of religions, science and technology, theories and ideologies in shaping societies, economies, nations and empires, global conflicts and connections.
- HST 120: U.S. History I: to 1865
U.S. History I: to 1865
This course is a survey of the history of the United States from pre-Columbian societies through the Civil War, including formative political, social, economic and cultural developments. It also introduces students to history as an academic discipline and requires analysis, synthesis and evaluation of primary and secondary materials in reading, discussion and writing. HST 120 will satisfy the Missouri state law requiring instruction in the United States and Missouri Constitutions.
- HST 130: U.S. History II: 1865-Present
U.S. History II: 1865-Present
This course is a survey of the history of the United States from Reconstruction to the present, covering the political, economic, social and cultural developments that have shaped modern America. It introduces students to history as an academic discipline and requires analysis, synthesis and evaluation of primary and secondary materials in reading, discussion and writing. HST 130 will satisfy the Missouri state law requiring instruction in the United States and Missouri Constitutions.
- PLS 101: American Government and Politics
American Government and Politics
This introductory course familiarizes students with American and Missouri government constitutions, institutions, policies and processes. Students develop an understanding of the foundations, environment, and principles of democracy with key concepts about voting, political parties, campaigns, and interactions between the branches of government. The course emphasis is on the values, rights, and responsiblities that shape public decision making of active and informed citizens in the American political system. This course meets instruction requirements (Missouri Revised Statute 170.011.1) in the Constitution of the United States and the state of Missouri.
- PLS 201: International Relations
International Relations
This course is a study of international relations, international behavior, and the role of the nation-state within the international system. Areas of concentration include foreign policy, major social and political forces at work in the contemporary world, theories of international relations, nationalism and conflict/cooperation.
Prerequisite(s): PLS 101 or GRY 101. - PSY 110: Introduction to Psychology
Introduction to Psychology
This course provides an introduction to psychology including history and systems, physiology, human growth and development, sensation and perception, learning, memory, emotion, motivation, personality, adjustment, psychopathology, industrial and social psychology.
- PSY 130: Life Span Development Psychology
Life Span Development Psychology
This course examines human development’s physical, cognitive, social, and emotional changes. The stages of development are discussed in the class, including the challenges individuals face along the developmental journey. The curriculum also studies the optimal conditions for humans to grow and flourish. The scientific principles introduced in the class are applied in a case study format.
- SOC 101: Introduction to Sociology
Introduction to Sociology
This course is an inquiry into the nature of society, the foundation of group life, institutions, structure of society and the role of the individual as a group member. Emphasis on implications for social change is encouraged.
- SOC 210: Urban Sociology
Urban Sociology
This course is an inquiry into the origin and practice of urban sociology. The course explores theories of urbanization, urbanization of the United States, contemporary urban problems, and global urban development. This course partially fulfills Social/Behavioral Science requirement.
Prerequisite(s): SOC 101. - SOC 215: Deconstructing Social Problems
Deconstructing Social Problems
This course is a critical examination of social problems that exist in modern societies. Social problems will be addressed through an analysis of how they are constructed, the sociological approach to problems, and an exploration of why problems persist. Policies related to reducing social problems will be discussed with an emphasis on what we can do in our community to decrease the negative consequences of social problems.
Prerequisite(s): Completion of 12 credit hours; 100 level or above.
Heating, Refrigeration and Air Conditioning Certificate
Certificate: 34 Hours
The demand for highly skilled technicians in the heating, air conditioning and refrigeration fields will continue to grow in the coming years. Students are exposed to the most technically advanced equipment and knowledge to stay abreast of the rapid changes that are taking place in the HVAC industry. Courses cover every aspect of the trade to give the student a comprehensive understanding of HVAC systems. Skills learned will allow the student to find many different types of entry level HVAC-related careers. This program is accredited by HVAC Excellence, PO Box 521, Mount Prospect, IL 60056 (800) 726-9696
Heating, Refrigeration, and Air Conditioning Certificate Requirements
Heating, Refrigeration, and Air Conditioning Certificate Requirements
- HRA 102: Basic Refrigeration Theory and Application
Basic Refrigeration Theory and Application
This introductory course provides students through lecture and lab the basic knowledge and skills required to comprehend the refrigeration cycle and service the refrigeration system.
- HRA 103: Electricity for Heating, Refrigerant and A/C
Electricity for Heating, Refrigerant and A/C
This is a lecture/laboratory course focused on AC electrical theory, troubleshooting and schematic reading as applied to refrigeration and air conditioning systems.
- HRA 125: Refrigerants and Refrigerant Handling
Refrigerants and Refrigerant Handling
This course offers Lecture/Lab experiences that familiarize the students with the characteristics of the most commonly used refrigerants and retrofitting CFC systems. Refrigerant recovery and evacuation procedures are emphasized and practiced during this course. The course includes administration of the EPA Exam.
Prerequisite(s): HRA 102. - HRA 135: Refrigeration Motors and Controls
Refrigeration Motors and Controls
This course offers Lecture/Lab experiences that familiarize the students with the characteristics of electrical controls and motors in refrigeration, heating and air conditioning systems. The students will learn and wire electrical circuits that are commonly used in refrigeration, heating and air conditioning. Students will learn the fundamentals of electronic control boards used on central air conditioners.
Prerequisite(s): HRA 103. - HRA 180: Air Distribution Systems
Air Distribution Systems
This course offers the knowledge & skill necessary to design, size and fabricate duct systems used in heating and air conditioning. Emphasis will also be given to air quality management and humidification.
- HRA 245: Commercial Refrigeration Systems
Commercial Refrigeration Systems
This course offers lecture/laboratory experiences that provide the student with knowledge of commercial refrigeration systems. Refrigeration & electrical knowledge that has been gained from previous courses will be applied specifically to commercial applications. The student will have the opportunity to work on varied types of commercial equipment. Skills that are needed to troubleshoot a variety of commercial equipment will be acquired.
Prerequisite(s): HRA 102, HRA 103, HRA 135 - HRA 250: Advanced Commercial Refrigeration
Advanced Commercial Refrigeration
This is a lecture/laboratory course that will allow the student to understand the operation of larger commercial refrigeration systems that are used in wholesale, warehouses and industrial settings. Refrigeration and electrical knowledge that has previously been gained will be applied to understand the unique refrigeration components used on these systems. Skills and knowledge needed to size equipment and refrigerant lines will be covered in this course.
Prerequisite(s): HRA 102, HRA 103, HRA 135 - HRA 265: Residential Heating and Air Conditioning
Residential Heating and Air Conditioning
This course offers lecture/laboratory experiences that provide the student with the knowledge and skills needed to install and troubleshoot residential air conditioners and furnaces.
Prerequisite(s): HRA 102, HRA 103. - HRA 270: Advanced Heating and Air Conditioning
Advanced Heating and Air Conditioning
This course offers lecture/lab experiences that provide the students additional opportunities to apply heating and air conditioning knowledge acquired in previous courses or from actual experience. Topics are oriented toward applications of specialized systems such as heat pumps, hydronics and packaged systems.
Prerequisite(s): HRA 265
Locations Offered:
More Tools for Finding Your Path
Notices & Disclaimers
*Costs displayed are based on current tuition and fee rates for the program’s required credit hours, as approved by the OTC Board of Trustees, and are subject to change without notice. Estimates reflect both in-district and out-of-district residency rates. Actual costs, degree completion time, and credit requirements may vary based on residency, prior credits, elective courses, program updates, and enrollment factors. For additional information on attendance costs, visit Cost of Attendance, tuition and fees or contact us at 417-447-6900.
**Graduation rates vary by individual. For details on program enrollment, retention, exam/certification, and employment rates, visit Student Outcomes / Student Right-to-Know. Some careers on this list may require additional education and training. For program-specific accreditation visit OTC Accreditation.
