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Refrigeration & A/C Service II

HVAC 124

Refrigeration & A/C Service II

HVAC 124

Course Description

Prerequisite: HVAC 122 or RHA 122. Develops an understanding of operational skills in trouble shooting domestic refrigeration and air conditioning systems. Focuses on electrical components and system parts in frost-free, conventional and cyclematic units, and portable air conditioning units. Credit may be earned in one of the following: HVAC 124, RHA 124, or SKPT 124. (35-10)

Outcomes and Objectives

Demonstrate knowledge of the operation of more advanced domestic refrigerators.

Objectives:

  • Pass, with 90 percent accuracy, questions covering the operation and function of a conventional cyclematic and frost-free unit on a written test.
  • Identify system components.
  • Identify defrost components.

Demonstrate knowledge of electrical components and wiring diagrams.

Objectives:

  • Measure electrical circuits and components of a cyclematic and frost-free refrigeration system.
  • Identify the components of the defrost system.

Demonstrate knowledge of advanced refrigeration systems.

Objectives:

  • Install a compressor, evacuate the system, and properly charge the unit using proper tools.
  • Identify EPA certification rules for recovery, evacuation, and charging the system.

Demonstrate knowledge of proper soldering techniques.

Objectives:

  • Identify proper methods of setup for the oxyacetylene units.
  • Explain how to properly prepare the soldering joint.
  • Identify the proper use of solders.