Purpose

This course is aimed at persons who wish to obtain a better understanding of how the Refrigeration cycle operates and functions and covers the installing and repairing these smaller units and covers amongst other things:

Course Duration:

• 10 Days

Target Market:

• Any person wanting to enter the refrigeration industry

Target Industries:

• Refrigeration Industries, Electrical Contracting

Course Outcomes:

• Introduction to Refrigeration including related tools
  
• Swaging and flaring of copper tubing including welding thereof
  
• Replacement of Compressors including electrical circuitry
  
• Charging of small domestic type Refrigerators and Freezers
  
• Commissioning and general fault finding

Modules:

Trade Specific Tools:

• Gauge Manifolds
  
• Swaging and Flaring Kit
  
• Pipe Cutter
  
• Pinch off tool

Copper to Copper Welding:

• Performing a swage on ¼” copper pipe
  
• Performing a flare on ¼” Copper pipe
  
• Performing copper to copper weld
  
• Performing copper to steel Brazing

Understanding basic thermodynamics:

• 5 Laws of refrigeration

Components of the small Domestic refrigerator & freezer and how they function:

• Compressor
  
• Condenser
  
• Evaporator
  
• Capillary tube
  
• Thermostat
  
• Hot Gas Defrost

Charging the systems:

• Evacuation of the system
  
• Vapour Charge
  
• Liquid Charge
  
• Critical Charge

Fault-finding:

• Inspect for visible defects;
  
•  Operate and test electrical circuitry;
  
•  Operate and test refrigeration circuitry;
  
• Locate faulty component or defect;
  
• Specify components and materials. Input Faults
  
•  Repair Faults

Commission the small Refrigerator and freezer Unit:

• Operate and assess the unit;
  
• Approve or reject the unit