HVAC

Ryan Iversen, Instructor
256.352.8140
ryan.iversen@wallacestate.edu
www.wallacestate.edu/hvac

 

Associate in Applied Science Degree (4 semesters)

Certificate (4 semesters)

Short-Term Certificates (1 semester)

At a Glance

Heating, Ventilation, Air Conditioning and Refrigeration is a broad-reaching industry that plays a vital role across the globe in many different industries. It is required to maintain affordable, convenient, and safe food supplies; it is used in manufacturing and is also considered to be a necessary component of most human environments. The complexity of this field allows for many opportunities. Its foundation is based in sound technical knowledge and specialized skill sets. Focusing on this foundation prepares a technician for many possibilities.

Program Description

The program offers two options. First, an AAS in General Technology, which consists of 64 semester hours, allows a completing student to seek immediate employment within the industry, sit for the contractors exam, and/or enables the completer to transfer their credits to a four-year institution and continue their education towards a bachelor’s degree in Mechanical Engineering or another related field. Second, a certificate consisting of 55 semester hours prepares students to immediately seek a position in the HVAC/R industry and/or meets the requirements of the Alabama Board of Heating, Air Conditioning & Refrigeration Contractors to sit for the Contractors Licensing Exam.

Program Expectations

Students in the HVAC/R program are expected to observe all policies that are set forth by Wallace State Community College. These policies can be found in the College Catalog. In addition, students are expected to maintain regular communications with the instructors, attend classes regularly, submit assignments as required, participate in laboratory exercises, and observe all program policies which are discussed in class and provided in a written format.

Completion Requirements

To successfully complete the HVAC/R program students are required to attend class meetings, study the textbook and other resources, submit assignments and receive passing scores of 70 or higher, and take examinations and receive passing scores of 70 or higher. Additionally, students are required to participate in laboratory exercises and demonstrate satisfactory levels of required skill sets. 

Career Path

A student’s career path begins here at Wallace State by acquiring technical knowledge, learning necessary skills, and achieving industry certifications. Upon completion, the student is prepared to immediately become employed within the industry and continue in the advancement of their excellence. Also, a student may choose to immediately receive a license to begin contracting HVAC/R services as a business owner or employee. Additionally, students may choose to further their education towards a higher degree at a 4-year institution in fields such as business, engineering, occupational safety and health, technical education, and others. Median annual earnings of heating, air conditioning, and refrigeration mechanics and installers was $51,390 in 2022. Employment is expected to grow 14 percent from 2014-2025, which is much faster than the average for all occupations (Source: U.S. Department of Labor Bureau of Labor Statistics).

Degrees and Certificates

Classes

ACR 111 : Principles of Refrigeration

This course emphasizes the fundamental principles for air conditioning and refrigeration. Instruction is provided in the theory and principles of refrigeration and heat transfer, HVAC/R system components, common, and specialty tools for HVAC/R, and application of the concepts of basic compression refrigeration. Upon completion, students should identify system components and understand their functions, identify and use common and specialty HVAC/R tools, and maintain components of a basic compression refrigeration system. CORE.

Credits

3

Prerequisites

As determined by college

ACR 112 : HVACR Service Procedures

This course covers system performance checks and refrigerant cycle diagnosis. Emphasis is placed on the use of refrigerant recovery/recycle units, industry codes, refrigerant coils and correct methods of charging and recovering refrigerants. Upon completion, students should be able to properly recover/recycle refrigerants and demonstrate safe, correct service procedures which comply with the no-venting laws.

Credits

3

Prerequisites

As determined by college

ACR 113 : Refrigeration Piping Practices

The course introduces students to the proper installation procedures of refrigerant piping and tubing for the heating, ventilation, air conditioning and refrigeration industry. This course includes various methods of working with and joining tubing. Upon completion, students should comprehend related terminology, and be able to fabricate pipe, tubing, and pipe fittings. CORE

Credits

3

Prerequisites

As determined by college

ACR 119 : Fundamentals of Gas Heating Systems

This course provides instruction on general service and installation for common gas furnace system components. Upon completion, students will be able to install and service gas furnaces in a wide range of applications.

Credits

3

Prerequisites

As determined by college

ACR 121 : Principles of Electricity for HVACR

This course is designed to provide the student with the basic knowledge of electrical theory and circuitry as it pertains to air conditioning and refrigeration. This course emphasizes safety, definitions, symbols, laws, circuits, and electrical test instruments. Upon completion students should understand and be able to apply the basic principles of HVACR circuits and circuit components. CORE

Credits

3

Prerequisites

As determined by college

ACR 122 : HVACR Electric Circuits

This course introduces the student to electrical circuits and diagrams. Electrical symbols and basic wiring diagrams are constructed in this course. Upon completion, student should understand standard wiring diagrams and symbols and be able to construct various types of electrical circuits. CORE.

Credits

3

Prerequisites

As determined by college

ACR 123 : HVACR Electrical Components

This course introduces students to electrical components and controls. Emphasis is placed of the operations on motors, relays, contactors, starters, and other HVAC electrical components. Upon completion, students should be able to install electrical components and determine their proper operation. CORE.

Credits

3

Prerequisites

As determined by college

ACR 127 : HVACR Electric Motors

This course covers the basic maintenance of electric motors used in HVAC/R systems. Topics include types of motors, motor operations, motor installation, and troubleshooting motors. Upon completion student should be able to install and service HVAC/R electric motors.

Credits

3

Prerequisites

As determined by college

ACR 132 : Residential Air Conditioning

This course introduces students to residential air conditioning systems. Emphasis is placed on the operation, service, and repair of residential air conditioning systems. Upon completion, students will be able to service and repair residential air conditioning systems.

Credits

3

Prerequisites

As determined by college

ACR 134 : Ice Machines

This course introduces students to commercial ice machines. Emphasis is placed on components, electrical and mechanical operation sequences, control adjustment procedures, preventive maintenance, repairs, and installation procedures. Upon completion, students should be able to install, service and repair commercial ice machines.

Credits

3

Prerequisites

As determined by college

ACR 147 : Refrigerant Transition and Recovery Theory

This course is EPA-approved and covers material relating to the requirements necessary for type I, II, and III universal certification. Upon completion, students should be prepared to take the EPA 608 certification examination.

Credits

3

Prerequisites

As determined by college

ACR 148 : Heat Pump Systems I

Instruction received in this course centers around the basic theory and application of heat pump systems and components. Upon completion students will be able to install and service heat pumps in a wide variety of applications.

Credits

3

Prerequisites

As determined by college

ACR 203 : Commercial Refrigeration

This course focuses on commercial refrigeration systems. Emphasis is placed on evaporators, condensers, compressors, expansion devices, special refrigeration components and application of refrigeration systems. Upon completion students should be able to service and repair commercial refrigeration systems.

Credits

3

Prerequisites

As determined by college

ACR 205 : System Sizing and Air Distribution

This course provides instruction in the load calculation of a structure and system sizing. Topics of instruction include heat loss, heat gain, equipment and air distribution sizing, and factors making acceptable indoor air quality. Upon course completion, students should be able to calculate system requirements.

Credits

3

Prerequisites

As required by college

ACR 209 : Commercial Air Conditioning Systems

This course focuses on servicing and maintaining commercial and residential HVAC/R systems. Topics include system component installation and removal and service techniques. Upon completion, the student should be able to troubleshoot and perform general maintenance on commercial and residential HVAC/R systems.

Credits

3

Prerequisites

As determined by college

ACR 210 : Troubleshooting HVACR Systems

This course provides instruction in the use of various meters and gauges used in the HVAC/R industry. Emphasis is placed on general service procedures, system diagnosis, and corrective measure, methods of leak detection, and system evacuation, charging and performance checks. Upon completion students should be able to perform basic troubleshooting of HVAC/R.

Credits

3

Prerequisites

As determined by program