Course Description

This course is made up of two 8 hour units of instruction.

Unit 1: Hydrocarbon Refrigerant Safety, is designed to provide technicians with an understanding of the safety requirements for servicing systems that contain EPA SNAP approved flammable refrigerants.

Unit 2: Lokring Service Training, is designed to provide technicians with an overview of the products available through American Vulkan Corporation and the endless applications for Lokring solder-free tube connections. Students will participate in both classroom and hands-on training exercises to ensure mastery of the installation and servicing processes associated with Lokring tube connections.

Course Outline

Identify Uses of Hydrocarbons as Refrigerants

  • Environmental impact
  • Advantages
  • Applications & availability

Summarize hydrocarbon regulations and standards

  • Approved HC refrigerants
  • Restricted uses and applications
  • Labeling
  • Liability concerns

Identify refrigerant properties and safety

  • Safety classifications
  • Flammability hazards
  • MSDS & health hazards
  • Rated equipment
  • Cylinder safety
  • Confined spaces

Explain servicing procedures

  • Compressor removal & installation
  • Brazing & mechanical joints
  • Sparking hazards
  • Leak & pressure testing
  • Recovery, evacuation, and charging
  • Rated replacement parts

Summarize various Lokring applications

  • HVAC & appliance applications
  • Advantages
  • Availability

Assemble Lokring tube connections

  • Micrometer measurements
  • Tubing construction
  • Fitting selection
  • Material preparation
  • Installation