Study Of Components And Breakdowns

Study Of Components And Breakdowns

Code: TLI0001

Study Of Components And Breakdowns.
Study Of Components And Breakdowns Of Refrigerating Installations

  • A large printed synoptic panel reproducing the circuits as a whole.
  • A refrigerating circuit equipped with a compressor.
  • A system to introduce breakdowns, equipped with lights, switches and controls.
  • Variable current and voltage circuits.
  • A data collection system equipped with corresponding instruments

Teaching objectives

  • This unit enables the study and analysis of the following topics.
  • Faults on the compressor valve.
  • Faults on the oil separator.
  • Faults due to excessive coolant.
  • Faults due to lack of coolant.
  • Total blockage of coolant going to the evaporator.
  • Broken regulator.
  • Obstructed dehydrator.
  • Condensation pressure too high.
  • Suction pressure too high.
  • Suction pressure too low.
  • Electric motor phase cut off.
  • Both motor phases cut off.
  • Defective refrigerating thermostat.
  • Defective freezing thermostat.
  • Defective trip coil.
  • Defective thermal protection of compressor.
  • Defective run capacitor.
  • Techniques for mounting/dismounting and connecting the different components.
  • Quality control of components.

Technical specifications

  • A compressor
  • Condenser, fluid indicator, filters, evaporator with thermal load, thermostatic valve, oil separator
  • Set of electrical instruments, all class 1.5, comprising: 1 voltmeter, 1 ammeter, 1 wattmeter, 1 COS(Φ) meter, 1 ohmmeter, 1 capacitance meter.
  • Flowmeter for coolants.
  • Electronic thermometers with PTC sensors.
  • Pressure gauges.
  • Voltage variator.
  • Current variator.
  • Fixed voltage cables.
  • Complete set of components for running a training programme, comprising thermostats, pressure switches, time delay relays, thermal and capacity protection systems.
  • switches for introducing breakdowns in the installation. Breakdowns in the hydraulic part are introduced by activating control valves, while electrical breakdowns are introduced by activating relays.
  • Manual of theory and experiments

Services required

  • Electricity supply: 230 V – 50 Hz single phase

Dimensions and weight

  • 1800 x 800 x 1800 mm – 167 kg

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