TU-100 Basic Refrigeration Trainer

This training unit demonstrates domestic refrigerator and freezers, self-contained air conditioning units and reverse cycle or heat pump systems.


  • Sight glass tubes at inlet and outlet of evaporator and condenser constructed of explosion-proof, tie-bolt design
  • Drip pans with drains located under each evaporator and condenser
  • Uses popular, brand name components
  • Color-coded valves, gauges, and hand valves to bypass various components and change from cooling to heating (heat pump operation)
  • Conditions of refrigerant and oil can be observed under various methods of operation
  • Pressure gauges located at each point in which pressure variation is likely to occur
  • Refrigerant flow to evaporator metered either by capillary tube, automatic expansion valve (AXV), or thermostatic expansion valve (TXV)
  • Evaporator and condenser copper tube coils with aluminum fins and variable speed fans
  • A combination low pressure control and high pressure cutout and a thermostatic control with a range of -30ºF to 100ºF furnished
  • High pressure cutout in the circuit at all times to prevent damage to the compressor
  • Includes Lab Manual and Instructor Guide


  • 1/3 HP hermetically sealed reciprocating compressor
  • Panels are 1/4″ thick HDPE with steel reinforced component shelf
  • Uses HFC 134A refrigerant
  • Electrical requirements: 120 VAC; 50/60 Hz; 10A
  • Overall size: 36″ L x 18″ W x 73″ H

TU-100 Basic Refrigeration Trainer Image
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