2024 – 2025
HVAC/R – Heating Ventilation Air Conditioning and Refrigeration
Jeff Wildrick, Academy A Administrator – Ext. 291
Course & Program of Studies
Statement of Purpose
The HVAC/R (Heating, Ventilation, Air Conditioning – Refrigeration) industry offers a rapidly expanding and lucrative career path, providing high-paying opportunities for individuals. We welcome students from diverse backgrounds and abilities, fostering an inclusive environment where everyone can thrive and reach their full potential. Today, nearly every building incorporates some form of climate control system, with over 95% of newly constructed residential homes featuring central air conditioning and advanced electronic appliances. Similarly, commercial establishments such as hotels, restaurants, hospitals, and high-rise buildings rely on modern Energy Management Systems (EMS) to efficiently manage their facilities.
Graduates of this field have numerous career paths to explore, including Licensed Refrigeration Technician, HVAC/R Service Technician, Electrical Control Wiring Technician, and Oil Burner/Gas Heating Technician. Further education opens doors to careers as mechanical engineers, building superintendents, or entrepreneurial opportunities. The wide range of possibilities in this dynamic and rewarding field extends globally, offering lucrative employment prospects.
Students receive comprehensive training in trade fundamentals, safety protocols, and specialized equipment usage. Their education progresses into theoretical study covering electricity and control wiring, refrigeration, air conditioning, and gas and oil heating systems and delve into commercial systems and participate in the school’s off-campus construction program, engaging in community projects related to their trade. Additionally, certification from the Environmental Protection Agency (EPA) is mandatory for those handling refrigerants. At GNBRVTHS, students enrolled in our program can obtain EPA certification before graduation, with relevant coursework and hands-on lab experience fulfilling trade licensure requirements.
The HVAC/R (Heating, Ventilation, Air Conditioning, and Refrigeration) industry offers a dynamic and rewarding career path with high-demand and well-paying opportunities. We welcome students from all backgrounds to join us and develop the skills needed to succeed in this essential field.
Today, climate control systems are ubiquitous, with nearly every building incorporating some form of HVAC/R technology. From residential homes with central air conditioning to large-scale commercial buildings with advanced Energy Management Systems (EMS), the industry provides numerous opportunities for skilled professionals.
Our HVAC/R program provides students with a comprehensive education, covering:
- Core Fundamentals:Students develop a strong foundation in HVAC/R principles, safety protocols, and equipment operation.
- Electrical and Control Systems: Students learn about electrical wiring, control systems, and troubleshooting techniques.
- Refrigeration and Air Conditioning: Students gain expertise in refrigeration cycles, air conditioning systems, and heat pump technology.
- Gas and Oil Heating: Students acquire knowledge of gas and oil heating systems, including installation, maintenance, and repair.
- Commercial Systems:Students explore advanced commercial HVAC/R systems, including building automation systems and energy management.
- EPA Certification:Students are prepared to obtain EPA certification, a requirement for handling refrigerants.
- Hands-On Experience: Students gain practical experience through in-shop projects and off-campus construction projects.
By combining theoretical knowledge with hands-on experience, our program equips students with the skills and certifications needed to succeed in the HVAC/R industry.
Exploratory Program
This course is a three day introduction for freshman exploratory students for an entry level position as a HVAC/R apprentice. Introduction of residential, light commercial refrigeration, air conditioning and heating equipment, and sheet metal fabrication will be explained and demonstrated. Students will perform electrical, copper soldering, and sheet metalworking projects during the exploratory program. Students will be trained in the safe operation of hand tools and other equipment to complete these tasks.
This three-day introductory course provides freshman students with a glimpse into the world of HVAC/R. Students will learn about residential and light commercial refrigeration, air conditioning, heating equipment, and sheet metal fabrication.
Through hands-on projects, students will gain experience in:
- Electrical Work: Basic electrical wiring and circuit testing.
- Brazing and Soldering: Copper soldering techniques for HVAC/R applications.
- Sheet Metal Fabrication: Cutting, bending, and forming sheet metal components.
Safety is a top priority, and students will receive training in the safe operation of hand tools and other equipment. This course is designed to spark interest in the HVAC/R trade and prepare students for further education and training.
Freshman Program
The HVAC/R Freshman shop course prepares students that have completed their exploratory instruction hands on experience working in modern HVAC/R (heating, ventilation, air conditioning & refrigeration) equipment at the residential level. Students learn the basics and tool use of the HVAC/R and Sheet Metal trade. This course should be completed in a 42 day period.
Instruction begins with review of trade safety. Students are then introduced to the many different types of commercial and residential HVAC/R equipment. Projects will be built using materials in the shop including various types of piping and they will build electrical projects from schematic diagrams. They are taught which type of fuels and refrigerants to use in certain environments. Trade related terminology and science is incorporated into this course to give students a full understanding of an installation or service project. They will end the freshman year program with an introduction to Sheet Metal to get them ready for their Sophomore year.
The HVAC/R Freshman Shop course provides students with a solid foundation in the fundamentals of the HVAC/R trade. Over a 42-day period, students will:
- Master Safety Protocols: Learn and practice industry-standard safety procedures.
- Explore HVAC/R Equipment:Understand the different types of residential and commercial HVAC/R equipment.
- Develop Piping Skills: Practice installing various types of piping, including copper, steel and PVC.
- Learn Electrical Wiring: Gain experience in wiring electrical circuits based on schematic diagrams.
- Understand Fuel and Refrigerant Selection: Learn about the appropriate use of different fuels and refrigerants.
- Acquire Sheet Metal Skills: Receive an introduction to sheet metal fabrication techniques.
By the end of the course, students will have a strong understanding of HVAC/R principles and be well-prepared to advance to more complex projects in their sophomore year.
Sophomore Program
The Sophomore HVAC/R course provides students with a solid foundation in sheet metal fabrication, a critical skill for HVAC/R technicians. Over a 90-day period, students will:
- Master Sheet Metal Development:Learn various sheet metal development techniques, including perpendicular line development, parallel line development, and triangulation development.
- Practice Duct Construction: Gain experience in constructing ductwork, including cutting, forming, and joining sheet metal components.
- Understand Insulation and Sealing: Learn about the importance of insulation and sealing ductwork to improve energy efficiency and prevent air leakage.
- Develop Tool Proficiency: Gain proficiency in using hand tools, power tools, and CNC plasma cutting systems.
- Obtain Safety Certifications: Complete OSHA 10-hour construction safety training to ensure workplace safety.
- Learn Soldering Techniques:Practice soldering skills for various HVAC/R applications.
By the end of the course, students will be well-prepared to tackle more complex sheet metal fabrication projects and advance their careers in the HVAC/R industry.
Sophomore Related Class 1
Applied Theory
The Sophomore Applied Theory course is a 90 day theory Sheet Metal Fabrication course to provide students with basic skills for the fabrication of architectural sheet metal components and sheet metal components for HVAC/R. Students will be instructed in Perpendicular Line Development, Parallel Line Development, and Radial Line Development of sheet metal products fittings used in architectural and residential/commercial HVAC/R systems. Students will be trained in the safe operation of hand tools, hand held power tools, and other equipment to complete these tasks. Students will also be instructed in the required math skills in the sheet metalworking trade. Plans, specifications, standards, air properties, distribution, installation of ductwork and components of the ductwork system will also be covered.
The Sophomore Applied Theory course provides students with a strong theoretical foundation in sheet metal fabrication. Over a 90-day period, students will:
- Master Sheet Metal Development: Learn advanced sheet metal development techniques, including radial line development.
- Understand Ductwork Design: Explore the design and layout of ductwork systems for architectural and HVAC/R applications.
- Study Airflow and Pressure:Learn about air properties, airflow principles, and pressure calculations.
- Acquire Math Skills:Develop math skills essential for HVAC/R calculations, including geometry, trigonometry, and algebra.
- Understand Standards and Codes: Learn about industry standards and codes related to HVAC/R systems.
By the end of the course, students will have a strong understanding of sheet metal fabrication theory and be well-prepared to apply these concepts to practical projects.
Sophomore Related Class 2
Technical Solutions
The GNBRVTHS HVAC/R Technical Solutions course is a comprehensive program designed to equip participants with the knowledge and skills necessary to address various technical challenges in Heating, Ventilation, Air Conditioning and Refrigeration (HVAC/R) systems. Tailored by the Massachusetts Department of Elementary and Secondary Education (DESE), this course focuses on practical solutions for enhancing HVAC/R efficiency, performance, and sustainability.
Throughout the program, participants delve into the fundamental principles of HVAC/R systems, gaining insights into heating and cooling technologies, ventilation strategies, and air quality management. The curriculum covers a wide range of topics, including equipment selection, system design, installation practices, and maintenance procedures.
Participants engage in case studies to deepen their understanding of HVAC/R concepts and apply theoretical knowledge to real-world scenarios. They explore innovative technologies and emerging trends in the HVAC/R industry, such as energy-efficient equipment, smart controls, and renewable energy integration.
Additionally, the course emphasizes compliance with relevant codes, regulations, and industry standards to ensure safe and reliable HVAC/R operations. Participants learn about best practices for troubleshooting common issues, diagnosing problems, and implementing effective solutions to optimize system performance and minimize downtime. Overall, the MA DESE HVAC/R Technical Solutions course equips participants with the expertise and confidence to tackle complex HVAC/R challenges, enhance system performance, and contribute to sustainable building practices in Massachusetts and beyond.
The GNBRVTHS HVAC/R Technical Solutions course is a comprehensive program designed to equip participants with the knowledge and skills needed to address the technical challenges of Heating, Ventilation, Air Conditioning, and Refrigeration (HVAC/R) systems. Aligned with the Massachusetts Department of Elementary and Secondary Education (DESE) standards, this course focuses on practical solutions to enhance HVAC/R efficiency, performance, and sustainability.
Key Course Topics:
- HVAC/R Fundamentals: Explore the core principles of heating, ventilation, air conditioning, and refrigeration systems.
- System Design and Installation:Learn the process of designing and installing HVAC/R systems, including equipment selection and layout.
- Troubleshooting and Maintenance: Develop troubleshooting skills to identify and resolve common issues in HVAC/R systems.
- Energy Efficiency and Sustainability:Gain insights into energy-saving technologies and sustainable practices.
- Building Automation and Controls: Understand the integration of building automation systems and controls.
- Code Compliance and Safety: Ensure adherence to relevant building codes and safety standards.
By completing this course, participants will develop a solid understanding of HVAC/R systems, enabling them to:
- Optimize System Performance: Improve the efficiency and effectiveness of HVAC/R systems.
- Reduce Energy Consumption:Implement energy-saving strategies to lower operating costs.
- Enhance Indoor Air Quality: Promote healthier and more comfortable indoor environments.
- Troubleshoot and Repair Systems: Diagnose and resolve HVAC/R issues promptly.
- Stay Updated on Industry Trends: Keep abreast of the latest advancements and technologies in the HVAC/R field.
Through a combination of theoretical instruction and hands-on practice, this course empowers participants to become skilled HVAC/R technicians and contribute to a sustainable future.
Junior Program
The goals for 11th grade students are to further the development of the student’s mechanical skills and enhance their technical knowledge of the industry. Students will continue with more advanced tubing, electrical, Refrigeration and Air Conditioning projects, and Heat Pump Technology. Students will be introduced to the principles of thermodynamics, temperature pressure relationship, basic refrigeration cycle and basic electricity applied to refrigeration.
This course will provide students with the knowledge in refrigeration sealed systems; they will explore the major components of a refrigeration cycle such as the compressor, evaporator, condenser and metering device. Students will identify and learn the function of each component and how it applies to the refrigeration cycle. Students will also be introduced to residential heating and air conditioning for the first time in the program. This will consist of introduction to heat pumps and ductless mini-split air conditioning units. Students will gain knowledge of the safe and proper handling of refrigerants and will have the opportunity to test for the EPA Section 608 refrigerant recovery certification.
Course Goals:
- Advanced Technical Skills: Further develop mechanical skills and enhance technical knowledge in refrigeration, air conditioning, and heat pump technology.
- Thermodynamic Principles: Gain a solid understanding of thermodynamics, temperature-pressure relationships, and the basic refrigeration cycle.
- Refrigeration Systems:Explore the components and operation of refrigeration systems, including compressors, evaporators, condensers, and metering devices.
- Residential Heating and Air Conditioning:Learn the fundamentals of residential heating and air conditioning systems, including heat pumps and ductless mini-split systems.
- Environmental Responsibility: Understand and practice safe handling of refrigerants and obtain EPA Section 608 certification.
Key Topics and Activities:
- Advanced Tubing and Electrical Work:
- Practice advanced tubing techniques for precise and efficient installations.
- Develop electrical wiring skills for HVAC/R systems.
- Refrigeration and Air Conditioning:
- Study the principles of refrigeration and air conditioning cycles.
- Learn to diagnose and troubleshoot common HVAC/R issues.
- Gain hands-on experience with refrigeration and air conditioning equipment.
- Heat Pump Technology:
- Understand the operation of heat pumps and their energy efficiency benefits.
- Learn how to install and maintain heat pump systems.
- Refrigerant Handling and Safety:
- Practice safe handling of refrigerants according to EPA regulations.
- Prepare for and pass the EPA Section 608 certification exam.
By the end of this course, students will be well-prepared for advanced HVAC/R training and careers in the industry.
Junior Related 1
Refrigeration Concepts
The HVAC/R Theory course provides a comprehensive understanding of the fundamental principles underlying refrigeration systems. This course will cover:
- Core Concepts:
- Thermodynamics and its application to refrigeration cycles
- Basic refrigeration cycle components and their functions
- Pressure-temperature relationships in refrigeration systems
- Energy efficiency and environmental impact of refrigeration systems
- Troubleshooting and Diagnostics:
- Identifying and diagnosing common refrigeration system problems
- Utilizing diagnostic tools and techniques
- Implementing effective troubleshooting strategies
- EPA 608 Certification:
- Preparing for and obtaining EPA Section 608 certification for refrigerant handling and recovery.
By the end of this course, students will be able to:
- Analyze refrigeration system performance
- Troubleshoot and repair refrigeration equipment
- Understand and comply with environmental regulations
- Apply theoretical knowledge to practical applications
Junior Related 2
Electrical Concepts
This curriculum delves into the intricacies of electrical wiring, circuit design, and code compliance. Building upon the foundational knowledge gained in Grade 11, students will explore:
Core Topics:
- Electrical Code: A deep dive into the Massachusetts Electrical Code, focusing on safety standards and regulations.
- Circuit Analysis: Analyzing complex electrical circuits, including series, parallel, and combination circuits
- Electrical Symbols and Diagrams:Interpreting electrical symbols and ladder diagrams to understand circuit functionality.
- Inductance and Capacitance: Exploring the concepts of inductance and capacitance and their impact on circuit behavior.
- Motors and Controls: Understanding the principles of motor operation and the application of motor controls.
- Electrical Applications in HVAC/R: Applying electrical knowledge to HVAC/R systems, including wiring, troubleshooting, and control systems.
- Safety Practices:Emphasizing safety procedures and adhering to electrical safety standards.
By the end of this course, students will be well-prepared to tackle advanced electrical projects and meet the demands of the electrical trade. They will develop strong problem-solving skills, a solid understanding of electrical theory, and the ability to apply their knowledge to real-world applications.
Senior Program
The Senior HVAC/R course builds upon previous knowledge, providing students with advanced skills and a comprehensive understanding of residential and commercial HVAC/R systems. Key areas of focus include:
Advanced HVAC/R Systems:
- Residential Heating and Air Conditioning:
- In-depth study of forced air, hydronic, and heat pump systems
- Design and installation of residential HVAC systems
- Troubleshooting and maintenance techniques
- Commercial HVAC Systems:
- Introduction to commercial HVAC systems, including chillers and cooling towers
- Understanding of commercial building automation systems
- Electrical Controls and Wiring:
- Advanced electrical wiring techniques for HVAC/R systems
- Programming and troubleshooting control systems
Code Compliance and Safety:
- Adherence to electrical codes and standards for HVAC/R installations
- Oil Burner Code:Compliance with oil burner code regulations
- Safety Practices: Emphasizing safety procedures and hazard mitigation
Real-World Applications:
- Hands-on Projects:Practical experience in designing, installing, and servicing HVAC/R systems.
- Blueprint Reading and System Design: Interpreting architectural drawings and designing HVAC systems.
- Industry Standards and Best Practices: Understanding industry standards and best practices for efficient and sustainable HVAC/R systems.
By the end of this course, students will be well-prepared to enter the HVAC/R industry, equipped with the knowledge and skills to excel in a variety of roles, including:
- HVAC Technician
- Service Technician
- Installation Technician
- System Designer
- Building Automation Specialist
Senior Related 1
Refrigeration Concepts II and Heating Concepts
The HVAC/R Science Course is a 90 day course that offers a solid foundation for a career as a refrigeration and air conditioning technician. Projects include estimates, finances, loans, cost averaging, charts and graphs for enthalpy criteria, wet bulb and dry bulb evaluation, refrigerant line sizing, filter drier sizing, evaporator and compressor comparison for selection, metering device evaluation, refrigerant charging amounts, oil tank capacities, air volume requirements and duct sizing and Manual J calculations. This course was developed to provide technical information necessary for a technician to be able to perform satisfactorily on the job and to complete the theory hours needed for the MA Refrigeration License Students can test for the R410a High Pressure Certification in this course.The HVAC/R Science course provides a comprehensive theoretical foundation for a career in HVAC/R. This course covers:
Core Topics:
- Refrigeration and Air Conditioning Theory: Deep dive into the fundamental principles of refrigeration cycles, heat transfer, and air conditioning systems.
- Energy Efficiency: Explore energy-efficient technologies and practices in HVAC/R systems.
- Refrigerant Handling and Safety: Understand EPA regulations for refrigerant handling, recovery, and recycling.
- HVAC/R Calculations: Perform calculations for load calculations, duct sizing, and equipment selection.
- System Design and Troubleshooting: Learn to design and troubleshoot HVAC/R systems.
- Building Codes and Standards: Adhere to relevant building codes and industry standards.
Practical Applications:
- Financial Analysis: Analyze project costs, estimate labor and material expenses, and understand financing options.
- Data Analysis:Interpret technical data, charts, and graphs to make informed decisions.
- Equipment Selection: Select appropriate HVAC/R equipment based on system requirements and energy efficiency considerations.
- Refrigerant Charging: Calculate and charge refrigerant systems accurately.
- Manual J Load Calculations: Perform Manual J calculations to determine heating and cooling loads for buildings.
By the end of this course, students will be well-prepared to:
- Pass the EPA Section 608 certification exam
- Apply HVAC/R theory to practical applications
- Make informed decisions about system design and troubleshooting
- Contribute to energy-efficient and sustainable HVAC/R solutions
Senior Related 2
Electrical Concepts II – Elective
The HVAC/R Electrical Concepts II – Elective course extends an overview of MA Electrical Code, and trade math for technicians entering the trade. Included in this course are motor efficiencies, calculating resistance, voltage and amperage, determining the seasonal energy efficiency ratio of a system. This elective program would be the most beneficial for students enrolled in co-op and/or students really interested in making HVAC/R a career choice.The HVAC/R Electrical Concepts II – Elective course provides advanced electrical knowledge and skills for aspiring HVAC/R technicians. Key topics covered include:
- Electrical Code: In-depth understanding of the Massachusetts Electrical Code, focusing on its application to HVAC/R systems.
- Electrical Calculations:Mastering electrical calculations, including resistance, voltage, amperage, and power factor.
- Motor Efficiency: Evaluating motor efficiency and selecting appropriate motors for HVAC/R applications.
- SEER Ratings:Calculating the Seasonal Energy Efficiency Ratio (SEER) of HVAC systems.
- Advanced Electrical Concepts: Exploring more advanced electrical concepts relevant to HVAC/R, such as control circuits, wiring diagrams, and troubleshooting techniques.
By completing this elective course, students will be well-prepared to:
- Troubleshoot Electrical Issues: Diagnose and repair electrical problems in HVAC/R systems.
- Optimize System Performance: Implement strategies to improve system efficiency and reduce energy consumption.
- Stay Updated on Industry Standards: Keep up-to-date with the latest electrical codes and industry practices.
- Advance Career Opportunities: Enhance career prospects in the HVAC/R field by demonstrating advanced electrical knowledge and skills.
Certifications
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OSHA 10- Hour Construction Safety and Health training certification
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EPA 608-Universal Recovery Certification
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EPA R-410a High Pressure Certification
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Hot Works Certification
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Reduction of in field hours to 2000 prior to being eligible for Massachusetts Refrigeration Technician License.
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GNB Voc-Tech has been approved by the Department of Public Safety as an approved school for licensure.
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1 year towards Sheet Metal Apprenticeship
Career Opportunities
- HVAC/R Service Field Technician
- HVAC/R Installation Technician
- Sheet Metal Fabricator and Installer
- Retail-Product or parts supply/distribution
- Customer Service-HVAC/R
- Manufacturer Technical and Service support
- HVAC/R Sales Rep
- Control Technician
- Oil Burner Technician
Post-Secondary Education
The hours gained from the HVAC/R provide our students with the hours needed to take the Massachusetts Refrigeration Technician License exam after working 2000 hours in the trade as a Refrigeration Apprentice. For students wishing to further their value for their professional career, continuing on to post secondary education has its benefits. These options include but are not limited to:
- 2-4 years in a approved Sheet Metal Apprenticeship
- Associate degree programs offered by Technical Colleges
- Other trade related license pathways that could benefit the students in their HVAC/R journey
