Key features –
The training set shall demonstrate the principles, components, and operation of an electricdriven
automotive air conditioning system, as used in Electric Vehicles (EVs) and Hybrid
Electric Vehicles (HEVs). Suitable for vocational schools, technical colleges, universities, and EV
training centers. The system shall be mounted on a mobile, heavy-duty steel or aluminum
profile frame with lockable wheels. All components must be automotive-grade and comply with
relevant EV industry standards.
The system shall support: Theoretical learning and Practical training (operation, diagnostics,
troubleshooting, and servicing)
System Configuration
The EV A/C training set shall include the following components:
Electric Compressor:- High-voltage or 12V/24V electrically driven compressor with integrated
control unit.
Condenser:- Equipped with an electric cooling fan.
Receiver/Drier or Accumulator:- Provided with sight glass (if applicable).
Expansion Device:- Thermostatic Expansion Valve (TXV) or Electronic Expansion Valve (EEV)
(preferred).
Evaporator:- With electric blower fan.
High-Voltage Power Supply Simulation:- Safe DC source to simulate EV battery (200-400
VDC), with isolation protection.
Low-Voltage Power Supply:- 12V DC supply for auxiliary systems.
Control Panel:- Includes

• Power switches
• Digital display
• Safety indicators
• Fault simulation/selection switches

Measuring and Monitoring Devices
Pressure Sensors and Gauges:- High-side and low-side refrigerant pressure measurement.
Temperature Sensors:- For refrigerant lines and air outlet temperature.
Digital Display Unit:- Real-time display of

• Voltage
• Current
• Pressure
• Temperature

Service Ports:- Compatible with standard manifold gauges.
Safety Features
- Electrical isolation and insulation for high-voltage components
- Emergency stop button on control panel
- Circuit breakers and over-current protection
- Transparent safety covers for high-voltage and high-pressure parts
- Ground fault protection for operator safety

Service Ports:- Compatible with standard manifold gauges.
Safety Features

• Electrical isolation and insulation for high-voltage components
• Emergency stop button on control panel
• Circuit breakers and over-current protection
• Transparent safety covers for high-voltage and high-pressure parts
• Ground fault protection for operator safety

Training Functions- The system shall enable:

• Demonstration of refrigerant cycle using an electric compressor
• Simulation of normal and faulty operating conditions
• Fault insertion, including:
• Refrigerant leakage
• Blockage
• Sensor failure
• Compressor malfunction
• Electrical faults

Measurement of operating parameters:-

• Voltage
• Current
• Pressure
• Temperature

Training in EV-specific service procedures:-

• Evacuation
• Charging
• Recovery
• Leak detection

Understanding integration with:-

• EV battery system
• Power electronics

Technical Specifications
Refrigerant:- R134a or R1234yf (environmentally friendly preferred)
High-Voltage Simulation:- 200-400 VDC, isolated and current-limited
Low-Voltage Supply:- 12V DC
Power Supply:- 220V AC, 50Hz
Frame Size:- Minimum 1200×800×1700 mm
Weight: Approx.:- 150-200 kg
Construction:- Heavy-duty, corrosion