Course Description

The Diploma in Refrigeration and Air-Conditioning (DRA) is a technical diploma course that teaches how cooling systems work and how to install, repair, and maintain refrigeration and air-conditioning systems. It prepares students for jobs in HVAC (Heating, Ventilation, and Air Conditioning) industries.

This course is popular in technical institutes, polytechnics, and ITIs and is suitable for students interested in mechanical, electrical, and cooling technologies.

DURATION: 12 MONTHS

ELIGIBILITY: 1OTH PASS

2. What You Study in This Course (Subjects)

The course focuses on cooling technology and equipment repair.

Core Technical Subjects

1. Basic Refrigeration Principles

2. Air-Conditioning Systems

3. Thermodynamics (Cooling science)

4. Electrical Fundamentals

5. Refrigeration Compressors

6. Condensers and Evaporators

7. HVAC System Design

8. Installation & Maintenance

9. Fault Diagnosis & Repair

10. Refrigerants and Gas Charging

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Practical Training

Students practice on real equipment like:

• Window AC

• Split AC

• Refrigerator

• Cold storage systems

• Deep freezer

• Commercial refrigeration systems

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3. Skills You Learn

After completing DRA you will learn:

✔ AC installation
✔ Refrigerator repair
✔ Gas charging (R134a, R22 etc.)
✔ Compressor maintenance
✔ Electrical wiring for AC
✔ Troubleshooting cooling systems
✔ HVAC system servicing

These skills are highly practical and job-oriented.

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4. Career Opportunities

After completing DRA you can work in many sectors.

Job Roles

• AC Technician

• Refrigeration Mechanic

• HVAC Technician

• Maintenance Technician

• Cold Storage Technician

• HVAC Supervisor

• Service Engineer (with experience)

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Industries Hiring

• AC manufacturing companies

• Refrigerator companies

• HVAC companies

• Shopping malls

• Hospitals

• Hotels

• Railways

• Airports

• Construction companies

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5. Top Companies Hiring

Some companies hiring HVAC technicians:

• Voltas

• Blue Star Limited

• Daikin

• LG Electronics

• Samsung Electronics

• Carrier Global

6. Self-Employment Opportunities

You can also start your own business like:

• AC repair shop

• Refrigerator servicing center

• HVAC installation service

• Cold storage maintenance

• AMC (Annual Maintenance Contract) service