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Certified Refrigeration and Air-conditioning Technician

How It Works

  1. 1. Select Certification & Register
  2. 2. Receive a.) Online e Learning Access (LMS)    b.) Hard copy - study material
  3. 3. Take exam online anywhere, anytime
  4. 4. Get certified & Increase Employability

Test Details

  • Duration: 60 minutes
  • No. of questions: 50
  • Maximum marks: 50, Passing marks: 25 (50%).
  • There is NO negative marking in this module.
  • Online exam.

Benefits of Certification

Rs.3,499 /-

Vskills certification for Refrigeration and Air-conditioning Technician assesses the candidate as per the company’s need for Refrigeration and Air-conditioning Technician. The certification tests the candidates on various areas in Refrigeration and Air-conditioning.

Trade Employable Skills does effective assessment and certification of candidates in different trade disciplines like Electrical, Electronics, Agriculture, Chemical, Automobile, IT, etc to make them job ready.

Why should one take this certification?

To demonstrate clear understanding and practical aspects and to get a visible recognition for this knowledge.

This Course is intended for professionals and graduates wanting to excel in their chosen areas. It is also well suited for those who are already working and would like to take certification for further career progression.

Earning Vskills Refrigeration and Air-conditioning Technician Certification can help candidate differentiate in today's competitive job market, broaden their employment opportunities by displaying their advanced skills, and result in higher earning potential.

Who will benefit from taking this certification?

Job seekers looking to find employment in Refrigeration and Air-conditioning departments of various companies, students generally wanting to improve their skill set and make their CV stronger and existing employees looking for a better role can prove their employers the value of their skills through this certification.

Practice Test

Companies that hire Refrigeration and Air-conditioning Technician

All small and medium companies need certified employees who have the requisite skills. There are more jobs opening up in the economy on a regular basis with the fast growth of the country.

Apply for Certification

By Net banking / Credit Card/Debit Card

We accept Visa/Master/Amex cards and all Indian Banks Debit Cards. There is no need to fill application form in case you are paying online.

Please click buy now to proceed for online payments.

  • Visa Card
  • Master Card
  • American Express


Thermodynamics Basics

  • What is Thermodynamics?
  • Basic Concepts of Heat Transfer
  • Thermodynamic Processes
  • Thermodynamic Systems
  • Laws of Thermodynamics
  • Thermodynamics Application in Refrigeration

Refrigeration and Air Conditioning Basics

  • Fluids and Pressure
  • Refrigeration and Air conditioning Basics
  • Unit of Refrigeration
  • Coefficient of Performance
  • Refrigeration Tools, Equipments
  • The Compression Cycle
  • Safety Pre-cautions

Refrigeration Cycle

  • The Refrigeration Cycle Components
  • The Refrigeration Cycle
  • Vapor Compression Cycle
  • Vapor Absorption Cycle
  • Gas Cycle
  • Stirling Engine
  • Reversed Carnot cycle


  • Types of compressors
  • Reciprocating Compressors
  • Compressor Cooling
  • Centrifugal Compressor
  • Rotary Compressors
  • Screw Compressors
  • Helical Screw Compressors
  • Reciprocating Compressors

Tubing, Cutting, Bending, Flaring, Swaging

  • Tubing
  • Pipe Cutting
  • Pipe Bending
  • Pipe Flaring
  • Pipe Swaging

Leak Testing, Evacuation and Charging

  • Leak Testing
  • Electronic leak detector
  • Pressure testing to find leaks
  • Leak Test Procedure
  • Reducing Leakage
  • Refrigerant Evacuation
  • Refrigerant Charging

Electrical Fundamentals

  • Electric Charge
  • Voltage
  • Current
  • Units
  • Resistance
  • Ohm's Law
  • Series and Parallel Circuits
  • Electrical Control
  • Electrical Components and Troubleshooting


  • What is Psychrometry?
  • Composition of Air
  • Psychrometric Terms
  • Dry-bulb temperature
  • Wet-bulb temperature
  • Humidity
  • Psychrometric ratio
  • Human Comfort


  • Ideal properties for a refrigerant
  • Role of Refrigerant
  • How Refrigerant Works
  • Refrigerant Blends
  • Lubricants

Oil in Refrigerant Circuits

  • Oil Usage
  • Important Oil Terms
  • Types of oils used in refrigeration systems.
  • Oil Specifications
  • Oil Separators
  • Oil Circulation
  • Technician Considerations
  • Oil Return
  • Oil Quantity
  • Oil Mixing
  • New Oil Considerations


  • What is a Condenser?
  • Heat to be Removed
  • Types of Condensing Unit
  • Air-cooled condenser
  • Water Cooled Condenser
  • Evaporative Condenser
  • Condenser Maintenance


  • Evaporator Basics
  • Evaporator Working
  • Types of evaporators
  • Evaporator Coil
  • Evaporator Coil Maintenance

Expansion Valve

  • What is Expansion Valve
  • Types of Expansion Valves
  • Expansion Valve Problems


  • Refrigerator Basics
  • Parts of a refrigerator
  • Deforst Timer
  • Defrost Heater
  • Defrost Controls
  • Damper control adjustment


  • Air conditioner
  • Parts Of An Air Conditioner
  • The Cool Cycle
  • Air movement in air conditioned area
  • Thermostat
  • Relay
  • O.L. P.
  • Capacitors
  • Condenser
  • Air Filters And Their Specifications
  • Specification of Air-conditioner
  • Room Air Flows
  • Air Flow Measurements
  • Anemometer
  • Rotating Vane Anemometer

Common Defects

  • Compressor Does not Start’
  • Compressor Trips Frequently
  • Evaporator Coil Issues
  • Unit Running Continuously
  • Water Leakage

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