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Air Distribution

Explain the importance of airflow in relation to direct expansion and air-cooled HVAC systems.

Explain how pressure, velocity, and volume are interrelated in air flow and outline the methods used to measure them.

Describe various types of blowers and explain when they would be used.

Explain how insulating, sealing, and testing air distribution systems maximize energy efficiency and indicate why these processes are important.

Explain how common duct materials and fittings affect energy efficiency.

Explain the importance of air velocity and how characteristics of common grilles, registers, and dampers affect velocity on both the supply and return sides.

Use a ductulator to determine duct sizes for a given size unit and space.

Piping Installation

Demonstrate use of pipefitting tools and measurements for fitting refrigerant, fuel gas, and/or water lines.

Identify and describe various types of steel pipe and fittings.

Describe the tools and methods used to cut and thread steel pipe.

Demonstrate the methods of installing and mechanically joining steel pipe.

Soldering and Brazing

Explain the difference between soldering and brazing.

Describe various soldering and brazing alloys, methods, and applications.

Describe types of torch equipment utilized by field technicians and explain how and why different torch setups and pressures are used.

Explain the use of nitrogen in soldering and brazing.

HVAC Refrigeration Systems

Foundational Standards

Incorporate safety procedures in handling, operating, and maintaining tools and machinery; handling materials; utilizing personal protective equipment; maintaining a safe work area; and handling hazardous materials and forces.

Demonstrate effective workplace and employability skills, including communication, awareness of diversity, positive work ethic, problem-solving, time management, and teamwork.

Explore the range of careers available in the field and investigate their educational requirements, and demonstrate job-seeking skills including resume-writing and interviewing.

Advocate and practice safe, legal, responsible, and ethical use of information and technology tools specific to the industry pathway.

Participate in a Career and Technical Student Organization (CTSO) to increase knowledge and skills and to enhance leadership and teamwork.

Alternating Current

Explain how AC power is generated and used.

Explain how transformers operate and identify various types of transformers used in HVAC refrigeration systems.

Identify the various types of induction motors and explain how they operate.

Explain how to test various AC-powered devices.

Test AC devices.

Compressors

Describe the operation of various types of compressors.

Explain common causes of compressor failures.

Identify and explain the operation of various compressor protection devices.