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Fundamentals of Charging a System Using Superheat & Subcooling

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Johnstone Supply

1360 Post & Paddock Street

Grand Prairie, TX 75050

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Course Description
This course is designed to provide the Contractor or Technician with the basics of Air Conditioning. The topics covered in this course are geared toward high-temperature refrigeration (air-conditioning) systems such as package equipment and split-type, central air-conditioning systems. This course is intended for those who are looking to obtain basic air-conditioning knowledge.

The cost of this event is $30. By requesting your ticket through Eventbrite, you will be added to the waiting list. A Johnstone representative will follow up with you to ensure that you're qualified to attend this event within 3 days.

Class Cost: $30

Resources

  • 1111644497 – Refrigeration and A/C Technology 7e Instructor’s Guide
  • 1111644489 – Refrigeration and A/C Technology 7e Study Guide/Lab Manual
  • 1111644500 – Refrigeration and A/C Technology 7e Instructor’s Resource CD

Objectives of the Course:
After completing this course, students should be able to:

  • Discuss safety issues that air-conditioning and refrigeration technicians must concern themselves with in order to remain safe on the job
  • Explain the concepts of heat transfer, Btu, temperature, heat content, sensible heat, latent heat
  • Explain the EPA laws governing safe refrigerant handling and transport
  • Explain the concepts of recovering, recycling, reclaiming, and retrofitting refrigerants
  • Properly leak test, evacuate, and charge an air-conditioning system
  • Identify the four major system components and explain their functions in the refrigeration system
  • The basic refrigeration cycle and charging system using Superheat or Subcooling

**** Students will need gages and Multi-meter able to read Volts, Amps, Ohms, Capacitance in
order to participate in the Lab exercises.

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Johnstone Supply

1360 Post & Paddock Street

Grand Prairie, TX 75050

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