EAU-964 Air conditioning trainer

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EAU-964

Air conditioning trainer

The trainer incorporates all the components and accessories required for operation under conditions very similar to those found in motor vehicles.

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Description

Ref.: 9EQ964EAFC – Trif. 380 V
Ref.: 9EQ964EACC – Trif. 230 V

The trainer incorporates all the components and accessories required for operation under conditions very similar to those found in motor vehicles, but with a number of additional pressure gauges and thermometers to facilitate students understanding of the working of the system. It is mounted on a trolley with wheels for easy transportation and a braking systems for ensuring stability once in place.

It incorporates the following real components, arranged in the logical sequence in which they would be found in a vehicle, motor cavity, front interior and rear interior.

Educational application concept

The learning model is based on the development of activities involving real vehicle elements, arranged according to strict teaching principles in order to facilitate the training process. They aim to:

  • Be motivating for students.
  • Have a real application, combining all aspects of air conditioning systems (components, circuits, loading/ unloading of gas, etc.) logically and effectively.
  • Enable the reversal of the classic learning sequence, replacing the component – circuit – application process with that of application – circuit –component.
  • Enable students to develop their malfunction diagnosis and repair skills.

Didactic characteristics

This system enables students to develop the following skills:

1. Analysis of the operating principle of air conditioning systems.

2. Analysis of air conditioning circuits.

3. Interpretation of diagrams.

4. Component control.

5. Malfunction diagnosis and repair.

6. Carrying out of coolant gas loading and unloading processes.

7. Control of air tightness. Leak detection.

8. Use of controls.

9. Use of technical documents.

The system consists of a group of elements that combine to form an air conditioning facility with a double low pressure circuit (A, B). Low pressure circuit A incorporates the fixed calibrated tube system while circuit B encompasses the expansion valve.

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The trainer has a series of visual pressure gauges and thermometers that aid the analysis and comprehension of the behaviour of the coolant.

 

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The system is also designed to carry out coolant loading, unloading and recycling operations. The circuit is loaded with coolant R-134a.

Teaching features

The control panel incorporates a system designed and patented by Alecop, which enables the analysis, diagnosis and repair of malfunctions.

  • Condenser speed adjustment control (0 to 4000 rpm).
  • Terminal block for measuring voltage and current in the system’s components.
  • Module for generating failures or malfunctions similar to those that may occur in a real vehicle.
  • Circuit A or B selector switch.
  • Battery ON-OFF switch for carrying out continuity tests.

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Technical specifications

  • Variable volume compressor.
  • Condenser and double-speed power fan.
  • High pressure pressostat.
  • Calibrated expansion tube.
  • Expansion valve.
  • Thermostat.
  • 2 evaporators and 2 triple-speed power fans.
  • Low pressure pressostat.
  • Drier filter. • Keyswitch.
  • A/D drive switch.
  • Speed adjustment controls for evaporator air thrusters.
  • Condenser speed adjustment control.
  • Electric motor with speed variation for driving the condenser.
  • 6 coolant status displays, located at the input and output of each component.
  • 6 pressure gauges in low and high pressure circuits, for displaying the various pressure levels.
  • 6 digital thermometers at the input and output of each component.
  • Digital thermometer showing room temperature.
  • Specific electrical installation for the A/A system.
  • Relay and fuse box.
  • Control panel.
  • Malfunction generation module.
  • Condenser access protection system, with safety microswitch

Breakdowns

The trainer enables you to generate failures or malfunctions in the various components by means of a programming-repair system. There are two options

  • Manual malfunction generation system (using switches).
  • Intelligent computer-aided virtual malfunction generation system (SIRVAUT), whose interactive software enables students not only to analyse the malfunction, but to repair it virtually as well.

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Teaching support

User manual

Contains information about how the equipment operates, standards for using it, characteristics, maintenance, electrical diagrams, list of breakdowns and their symptoms, etc.

Practical activities manual

Manual containing the various practical activities that can be carried out using the trainer, complete with the corresponding answers or solutions to make the teacher’s job easier. Activities include: individual component identification, identification of systems, signal checking, reproduction and identification of malfunction symptoms, search for and location of malfunctions, proposal of solutions and virtual repair, etc.

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