About This Program
The AC & Refrigeration Technician course provides practical training in installation, servicing, maintenance, and basic troubleshooting of air-conditioning and refrigeration systems.
Students learn about refrigeration cycles, compressors, condensers, evaporators, electrical components, refrigerant handling, copper pipe work, brazing, and fault diagnosis.
Comprehensive Syllabus
28 Modules-
Module 1: Introduction to RAC • Introduction to refrigeration and air conditioning • Applications of refrigeration • Types of refrigeration systems • Types of air conditioners o Window AC o Split AC o Preview3 day
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Module 2: Basic Refrigeration Principles • Heat and temperature • Pressure and vacuum • Sensible and latent heat • Evaporation and condensation • Refrigeration effect • COP (Coefficient of Performance3 day
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• Compressor → Condenser → Expansion Device → Evaporator • Suction and discharge lines • High-pressure and low-pressure sides • Refrigeration cycle operation3 day
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• Manifold gauge • Multimeter • Clamp meter • Thermometer • Vacuum pump • Recovery machine • Leak detector • Flaring tools • Brazing equipment • PPE and electrical safety • Refrigerant handling safety1 week
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• Compressor function • Types of compressors • Reciprocating compressor • Rotary compressor • Scroll compressor • Inverter compressor • Compressor terminals • Compressor testing1 week
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• Condenser working • Types of condenser • Air-cooled condenser • Evaporator working • Types of evaporators • Cleaning and maintenance1 week
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• Capillary tube • Thermostatic Expansion Valve (TXV) • Electronic Expansion Valve (EEV) • Function and troubleshooting1 week
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• Fan motor • Capacitor • Thermostat • Relay • Contactor • Overload protector • Sensors • MCB and electrical protection1 week
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• Copper tube types and sizes • Suction and liquid pipes • Pipe cutting • Pipe bending • Pipe joining • Pipe insulation1 week
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• Flaring tools • Correct flare preparation • Flare joint making • Tightening techniques • Common flare problems1 week
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• Brazing equipment • Brazing rods • Heating techniques • Copper-to-copper joints • Safety during brazing1 week
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• Nitrogen cylinder safety • Pressure regulator • Pressure testing procedure • Leak identification • Pressure holding test1 week
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• Vacuum pump operation • Vacuum gauge • Vacuum procedure • Moisture removal • Vacuum leak test1 week
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• Purpose of refrigerant • Common refrigerant types • R-22 • R-32 • R-410A • Refrigerant identification • Refrigerant safety and environmental considerations1 week
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• Charging by pressure • Charging by weight • Charging procedure • Checking operating pressure • Checking superheat/subcooling basics • Signs of undercharging and overcharging1 week
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• Refrigerant recovery procedure • Recovery cylinder • Recovery machine • Safe refrigerant storage • Basic recovery documentation1 week
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• Soap solution test • Electronic leak detector • Nitrogen testing • Common leakage points • Leak repair procedure1 week
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• Site inspection • Indoor unit installation • Outdoor unit installation • Copper pipe connection • Drain pipe installation • Electrical connection • Vacuuming • Test running • Performance checking1 week
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• Window AC construction • Installation • Servicing • Electrical circuit • Common problems • Troubleshooting1 week
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• Indoor unit servicing • Outdoor unit servicing • Filter cleaning • Coil cleaning • Drain cleaning • Fan cleaning • Condenser cleaning1 week
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• AC not starting • AC not cooling • Low cooling • Water leakage • Excessive noise • Ice formation • Compressor trip • High/low pressure problems • Fan motor failure1 week
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• Introduction to AC PCB • PCB components • Sensors • Relays • Connectors • LED error codes • Basic PCB testing • PCB replacement1 week
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• Short circuit • Open circuit • Overload • Loose connection • Capacitor failure • Motor failure • Compressor electrical faults1 week
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• Refrigerator working principle • Direct Cool refrigerator • Frost-Free refrigerator • Single-door refrigerator • Double-door refrigerator • Refrigerator components1 week
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• Compressor testing • Thermostat testing • Fan motor • Defrost system • Heater • Timer • Door switch • Sensor • Drain system • Cooling fault diagnosis1 week
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• Conventional vs inverter AC • Inverter compressor • Inverter PCB • Variable-speed operation • Basic inverter fault codes • Inverter AC servicing precautions1 week
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• AC maintenance checklist • Refrigerator maintenance • Electrical inspection • Refrigerant inspection • Coil cleaning • Drain inspection • Performance testing • Customer service practices1 week
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• Split AC installation • Copper pipe work • Flaring • Brazing • Nitrogen pressure testing • Vacuuming • Refrigerant charging • Leakage detection • AC servicing • Electrical troubleshooting • Refriger1 week
Related Academic Programs
Admissions Open 2026-27
₹36,000
₹45,000
Inclusive of all course materials, lab access & certification.
- Duration: 6 Months
- Delivery Mode: Hybrid
- Course Level: Professional
- Eligibility: 10+2 or Equivalent
- Accreditation: ISO 9001:2015 Verified