To provide learners with foundational knowledge and practical skills in air conditioning and refrigeration systems, including installation, basic maintenance, troubleshooting, safety practices, and understanding of refrigeration cycles.

1. Explain basic refrigeration and air conditioning principles (Understand)
2. Identify ACR components and tools (Understand)
3. Apply basic installation and maintenance procedures (Apply)
4. Perform simple fault diagnosis and troubleshooting (Apply)
5. Demonstrate safe handling of refrigerants and equipment (Apply)

Module 1: Introduction to Air Conditioning & Refrigeration

•  Definition and importance of refrigeration and air conditioning
•  Applications in residential, commercial, and industrial sectors
• Basic thermodynamics concepts:
  • Heat
  • Temperature
  • Pressure
• Refrigeration cycle overview:
  • Compression
  • Condensation
  • Expansion
  • Evaporation
• Types of refrigeration systems:
  • Domestic refrigerators
  • Split AC systems
  • Central AC systems

Module 2: Refrigeration Components & Tools

• Main components of refrigeration system:
  • Compressor
  • Condenser
  • Expansion valve
  • Evaporator
• Refrigerants:
  • Types (R22, R410A, R32 overview)\
  • Properties and safety considerations
• Tools used in ACR:
  • Manifold gauge
  • Vacuum pump
  • Refrigerant cylinder
  • Leak detector
• Piping materials:
  • Copper pipes
  • Insulation materials

Module 3: Installation Practices

• Basic installation of split air conditioning units
• Positioning of indoor and outdoor units
• Piping and insulation techniques
• Electrical wiring basics for AC systems
• Drainage system installation
• Vacuuming and charging procedures (basic level)

Module 4: Maintenance & Troubleshooting

• Preventive maintenance procedure
• Cleaning of filters and coil
• Checking refrigerant levels
• Common faults:
  • Low cooling
  • Gas leakage
  • Compressor failure
• Basic troubleshooting techniques
• Maintenance schedule preparation

Module 5: Safety & Refrigeration Handling

• Electrical safety in ACR systems
• Refrigerant handling safety procedures
• Environmental safety:
  • Ozone depletion
  • Global warming impact
• Use of PPE:
  • Gloves
  • Goggles
• Safe handling and storage of gas cylinders
• Workshop safety practices

Projects