Certificate in Air Conditioning & Refrigeration (1 YEAR)
Certificate in Air Conditioning & Refrigeration (AC&R)
Detailed Syllabus
Module 1: Introduction to Refrigeration & Air Conditioning
Duration: 4 Weeks (100 Hours)
Theory
- Introduction to Refrigeration and Air Conditioning
- Scope and Career Opportunities
- Basic Principles of Refrigeration
- Heat and Temperature
- Heat Transfer Methods
- Units of Measurement
- Pressure and Vacuum
- Refrigeration Cycle
- Refrigerants and Their Properties
- Environmental Protection and Ozone Layer
Practical
- Identification of RAC tools
- Safe handling of equipment
- Measuring temperature and pressure
- Introduction to workshop practices
Module 2: Electrical Fundamentals
Duration: 6 Weeks (140 Hours)
Theory
- Basic Electricity
- AC and DC Supply
- Voltage, Current, Resistance
- Ohm's Law
- Power and Energy
- Series and Parallel Circuits
- Electrical Components
- Capacitors
- Relays
- Contactors
- Overload Protectors
- Electrical Safety
- Earthing
Practical
- Wiring practice
- Multimeter operation
- Continuity testing
- Voltage and current measurement
- Electrical fault identification
Module 3: Refrigeration Components
Duration: 6 Weeks (140 Hours)
Theory
- Compressor Types
- Condenser
- Evaporator
- Expansion Devices
- Filter Drier
- Thermostat
- Pressure Switches
- Refrigeration Oils
- Copper Tubing
- Piping Layout
Practical
- Component identification
- Copper tube cutting
- Bending and flaring
- Swaging
- Brazing and soldering
- Leak testing
Module 4: Domestic Refrigeration & Commercial Refrigeration
Duration: 8 Weeks (200 Hours)
Theory
- Domestic Refrigerator Construction
- Deep Freezer
- Refrigerator Controls
- Refrigerant Charging
- Defrost System
- Common Faults
- Preventive Maintenance
Practical
- Refrigerator installation
- Gas charging
- Compressor replacement
- Thermostat replacement
- Leak detection
- Fault diagnosis
Duration: 6 Weeks (160 Hours)
Theory
- Cold Storage
- Water Cooler
- Bottle Cooler
- Ice Plant
- Display Chiller
- Walk-in Cooler
- Commercial Refrigeration Systems
Practical
- Servicing commercial equipment
- Electrical troubleshooting
- Refrigerant recovery
- Leak repair
Module 5: Room Air Conditioner
Duration: 8 Weeks (200 Hours)
Theory
- Window Air Conditioner
- Split Air Conditioner
- Inverter AC
- Components and Working
- Refrigerant Flow
- Installation Procedures
- Preventive Maintenance
Practical
- Window AC installation
- Split AC installation
- Indoor & outdoor unit mounting
- Vacuuming
- Gas charging
- Performance testing
Module 6: Air Conditioning Systems
Duration: 4 Weeks (100 Hours)
Theory
- Central Air Conditioning
- Package Unit
- Cassette AC
- Ductable AC
- VRF/VRV Systems (Introduction)
- Cooling Load Basics
- Indoor Air Quality
Practical
- Airflow measurement
- Filter servicing
- Fan motor testing
- Thermostat calibration
Module 7: Refrigerant Handling & Safety
Duration: 3 Weeks (80 Hours)
Theory
- Refrigerant Types (R22, R32, R134a, R410A, R290)
- Refrigerant Recovery
- Recycling
- Evacuation
- Charging Methods
- Environmental Safety
- PPE and Workshop Safety
Practical
- Vacuum pump operation
- Manifold gauge usage
- Refrigerant charging
- Recovery machine operation
Module 8: Maintenance & Troubleshooting
Duration: 4 Weeks (100 Hours)
Theory
- Preventive Maintenance
- Breakdown Maintenance
- Troubleshooting Techniques
- Compressor Failures
- Electrical Faults
- Refrigeration Faults
- Customer Service
Practical
- Fault diagnosis
- Repair and replacement
- System testing
- Performance evaluation
Module 9: Entrepreneurship & Soft Skills
Duration: 2 Weeks (40 Hours)
Topics
- Communication Skills
- Customer Handling
- Job Estimation
- Service Report Writing
- Small Business Setup
- Digital Payments
- Workplace Ethics
- Interview Preparation