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Products | Thermodynamics, Heating and Sanitary Systems | Refrigeration and Air Conditioning | ET 450

ET 450

Car Air Conditioning Trainer

Technical Description

The refrigerant circuit contains a belt-driven compressor, an air-cooled condenser and an evaporator with cold air outlet and expansion valve. All components used in the trainer are typical parts found in automotive engineering, so it is relevant in practice. The power supply is 12VDC which is typical for vehicles. Even the function of the ignition switch has been realised. A powerful three-phase motor is used for the drive; the speed of this motor can be continuously adjusted using a frequency converter. Speeds of up to 3000rpm can be set. The compressor is driven using a magnetic coupling. Important parameters such as pressure, temperature, flow rate, and the power consumption of the compressor are displayed. As a special feature, 8 switchable faults are fitted. The system is particularly suitable for training car mechanics. A three-phase mains electricity supply is required for operation.

Learning Objectives / Experiments

- Principle of operation, layout and usage of a car air
conditioner
- Recognition of typical malfunctions and repair on an
air conditioner
- Simulation of eight system faults
- Familiarisation with the typical components in an air
conditioner
- Refrigeration circuit as thermodynamic cyclic
process

Features

* Experimental set-up with complete car air-conditioner
* Usage of components from automotive engineering
* Simulation of up to 8 system faults possible
* Powerful drive motor, speed controlled

Specification

[1] Mobile, complete car air conditioning system
[2] l x w x h: 800x1200x1300mm, 120kg
[3] Simulation of 8 faults
[4] Drive motor with frequency converter
[5] Axial piston compressor
[6] Compact evaporator with expansion valve and fan
[7] Moment transmission motor-compressor using magnetic coupling, transmission ratio: 1:1
[8] System switched on using ignition switch
[9] Refrigerant R134a, CFC-free
[10] Internal power supply: 12VDC
[11] 400V, 50Hz, 3 phase

Technical Data

Drive motor: power rating: 4kW at 3000rpm
Compressor: 7 cylinders, refrigerating capacity: approx. 3kW at 3000rpm
Condenser: capacity: 6.6kW
Evaporator: capacity: 5.3kW
Measuring ranges: temperature: 4x -50...150°C; temperature (manometer): -60..80°C; flow rate: 10...95ltr/h; pressure: -1..9bar / -1...24bar; speed: 0...3000rpm; current: 0...10A

Dimensions and Weight

l x w x h : 800 x 1200 x 1300mm
Weight : approx. 120 kg

Connections

400V, 50Hz, 3 phase

Scope of Delivery

1 air conditioner, fully assembled and filled with refrigerant, 1 instruction manual

Order Details

061.45000 ET 450 Car Air Conditioning Trainer