Contents of the course

• Scroll Units.
• Annual Maintenance Procedures.
• Basic Refrigeration & Four Component Flow.
• Controller and microprocessor switching points.
• Electric Circuit Start Up Sequence / Electrical Circuit reading.
• Pressure - Temperature Chart.
• Compressor and other components.
• Differences between Carrier 69NT, Thermoking CRR-40 2000 and Daikin LXE-10E-A
• Various Sensors and their working.
• Working Principle of the modulation valve and Quench Valve.
• Replacing procedure of the defective compressor.
• Replacing procedure of the defective Evaporator fan motor.
• Replacing procedure of the defective Condenser fan motor.

Practicals on

• Replacing procedure of the defective Condenser fan motor.
• Loading & Downloading Procedures with PLC.
• Controlled Atmosphere Systems.
• Humidification Systems.
• Charging of refrigerant, leak and detection and rectification.
• Replacing Evaporator heater assembly.
• Servicing of Modulating Solenoid valve.
• Controller checkout and procedures.
• Practical training of brazing on Refrigera- tion Piping System.
• Temperature Controller sensor and set station checkout procedure.
• Replacing thermostatic expansion valve.
• Fault Diagnosis.
• Identifying and Replacing a defective sensor.
• Testing the Compressor pressure with manifold gauges.