Basic Refrigeration Trainer

This training unit (TU-100) 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
  • Stainless steel 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 has copper tube coils, aluminum fins, and variable speed blower
  • Condenser with a variable-speed blower
  • A combination low pressure control and high pressure cutout and a thermostatic control with a range of –30°F to 100°F furnished
  • High pressure cutout in the circuit at all times to prevent damage to the compressor
  • Includes a student lab manual and operation manual


  • Compressor: 1⁄2 HP hermetically sealed reciprocating
  • Refrigerant: HFC-134A
  • Panels: 1⁄4” thick with 3⁄4” thick component shelf
  • Overall Size: 36”W x 18”D x 73”H
  • Electrical Requirements: 115V AC; 50/60 Hz; 10A

230 volt available upon request

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