DAR-3321 Basic Air Conditioning

DAR-3321 Basic Air Conditioning

The DAR-3321 Basic Air-conditioning training system is a functional, compact and modular unit that connects to the DAR-3301 Main Platform Unit.


  • Plug-in aluminum module 75 x 38 x 8 cm
  • Transparent cooling box with door
  • Evaporator with electric blower
  • Thermostatic valve
  • Evaporator electric fan
  • Thermal load
  • Temperature sensors
  • Check valve
  • Control valve
  • Quick connect / disconnect to main platform unit

Quick connect / disconnect electrical contacts


Basic Air Conditioning  Experiments

  • Principles of air conditioning
  • System operation and components
  • Refutation devices
  • Response of electrician control systems
  • Thermal cycle
  • Use of psychometric diagrams
  • Operation of capillary tube and expansion valve
  • System operation with various control methods
  • Cooling and heating operating modes
  • Load variation at the compressor & evaporator
  • Heat flow through system components
  • Fitting techniques with refrigerant gas
  • Fault diagnosis and repair using a computer
  • Faults simulation and diagnosis procedure

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