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Refrigeration Training System
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Refrigeration Training System



The Refrigeration Training System is a compact training system designed to teach the fundamentals of refrigeration. It demonstrates the operation of typical refrigeration systems using industrial and commercial devices.

The compactness of the training system allows its placement on a table or a bench, reducing the floor space requirements. Featuring the latest versions of refrigerant and components available on the market, the training system ensures up-to-date training. It also integrates instrumentation and process control components, as well as an electrical control panel. Instructors can insert faults to teach troubleshooting.

The training system features a powerful data acquisition system whose tools enable students to easily monitor operating conditions in real-time to provide key information, simplifying system troubleshooting and performance analysis.

Features & Benefits

  • Compact design allows the trainer to be mounted on a table or bench
  • Cooling chamber with clear acrylic door enclosing a forcedair evaporator
  • Commercial condensing unit using R134a refrigerant
  • Air-forced condenser with variable speed fan
  • Thermostatic expansion valve and two capillary tubes of differing lengths to compare the coefficients of performance obtained with different metering devices
  • Capillary tube metering devices
  • Electronic Pressure control with LCD display
  • Thermostatic Control. Pressure control
  • Heat load simulation
  • Seven thermocouple transducers and three pressure transducers used to acquire data at the critical points of the system
  • Conditioning of the compressor voltage and current
  • Lockable fault insertion switch
  • Circuit breaker and safety pressure switch
  • High-pressure safety switch with manual reset breaker
  • Estimated program duration: 25 hours
  • Integrates a powerful data acquisition system – LVHVAC software – for real-time monitoring

Topic Coverage

  • Refrigeration Fundamentals & Components
  • Enthalpy Diagram
  • Electrical Control of Refrigeration Systems
  • Pressure and Temperature Control in Refrigeration
  • Thermostatic Expansion Valve Adjustment
  • Troubleshooting

Additionally required equipment

Qty DescriptionModel Number
1 Personal Computer 8990

Optional Equipment

Qty DescriptionModel Number
1 Refrigeration Charging Equipment 3440-5
1 Vizi-Vapor Charging Accessory 3440-6
1 Refrigerant Recovery Unit 3445-1
1 Refrigeration Training System - eSeries 3490-E
1 Refrigeration Training System (Manuals on CD-ROM) 37869-A


Figure 1. Three expansion (metering) devices are available.
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Figure 2. The electronic pressure controller, with LCD display and adjustable cut-in and cut-out pressures.
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Figure 3. An electrical control panel with silk-screened diagram and banana jacks allows students to develop troubleshooting skills through the insertion of fault switches.
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Figure 5. The System Information panel displays in real time the values of variables used to assess the performance of the system.
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Figure 6. The Pressure/Enthalpy Diagram provides a real-time plot of the refrigeration cycle.
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Figure 7. The Trend Recorder provides a graph over time of the pressures, temperatures, and compressor data at the system test points.
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Refrigeration Training System
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Figure 4. The LVHVAC software Refrigeration Diagram shows the main components of the system and displays in real-time the temperatures, pressures, and compressor data measured at the various test points.
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