Course Objective

• This course is specially designed to provide the participants with a better understanding of the engineering background of refrigeration equipment and practical skills while dealing, with maintenance and repair works

Who Can Benefit

• The program is designed mainly for Technicians

Course content

• Introduction - Fundamentals of refrigeration 
  • Heat flow
  • Temperature
  • Pressure, gases
  • Basic refrigeration
  • Refrigerant
• Basic refrigeration systems
• Selecting & handling tools & materials
  • Tubing, flares
  • Soldering
  • Swaging
  • Gauges
  • Evaporator system
• Compression Systems and Compressors
  • The system
  • compression cycle
  • suction line, filter/dryer,
  • condenser, expansion valve hermetic & semi-hermetic units, type
  • Of compressors valves
• Refrigerant controls
  • Controlling, refrigerant pressure & temperature
  • Expansion valves, solenoid valves, oil separator
  • Oil pressure, high & low pressure cut out, flexible connector
• Electric circuits & controls
  • Understanding the motor types
  • capacitor-start, thermostats
  • starting relays
  • defrost controls
  • contactors, overloads, time delay
  • Anti short timer, wiring diagram, star-delta connection
• Servicing and installing semi-hermetic compressors
  • Understanding leak detection
  • Adding oil, using a gauge manifold, valve kit
  • system charming, system evacuation, motor/compressor
  • Problems
• Testing & Troubleshooting
  • Locating trouble
  • Troubleshooting chart
  • Repairs, service estimates
  • Testing & start up

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