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Diploma in HVAC

Rs.2,500.00 Rs.1,250.00

Diploma in HVAC, Heating, ventilation, and air conditioning (HVAC) is an indoor and vehicular environmental comforting technology. The technology aims to provide thermal comfort and high indoor air quality.

HVAC systems offers ventilation and balances pressure between vacuum spaces.


Course Name: Diploma in HVAC

Course Id: DHVAC/Q1001.
Education Qualification: 10th Pass.
Course and Exam Fee: 2500.

How You will Get Diploma Certificate:

Step 1- Select your Course for Certification.

Step 2- Click on Enroll Now.

Step 3- Proceed to Enroll Now.

Step 4- Fill Your Billing Details and Proceed to Pay.

Step 5- You Will be Redirected to Payment Gateway, Pay Course and Exam Fee by Following Options.

Card(Debit/Credit), Wallet, Paytm, Net banking, UPI and Google pay.

Step 6- After Payment You will receive Study Material and Online Examination link on your email id.

Step 7- After Completion of  Course Study give Online Examination.

Step 8- After Online Examination within 7 days you will get Diploma Certificate soft copy(Scan Copy) and Hard Copy(Original With Seal and Sign) within 30 days.

Step 9- After Certification you will receive Prospect Job Opportunities as per your Interest Area.

Online Examination Detail:

Duration- 60 minutes.

No. of Questions- 30. (Multiple Choice Questions).

Maximum Marks- 600, Passing Marks- 40%.

There is No Negative marking in this module.

Benefits of Certification:

  • Government Authorized Assessment Agency Certification.
  • Certificate Valid for Lifetime.
  • Lifetime Verification of Certificate.
  • Free Job Assistance as per your Interest Area.

Or You Can Fill below Enquiry form For Regular Course Training from our Training Centers located in India.

Student Course Enquiry Form


Diploma in HVAC
Name of PaperM. MarksPass Marks
Refrigeration and Air Conditioning10040
Fitting and Welding10040
Thermal Insulation10040
Commercial RAC Plants & Car Air Conditioner10040
Commercial compressor & Capacity Control10040
Water Softening Plants & Chiller10040
Reaction of Plants, HVAC, Ducts, VAV System10040


Refrigeration and Air Conditioning

Classification, Desirable Properties of refrigerants, Designation, Comparison among commonly used refrigerants, Ozone depletion Potential (ODP), Global warming potential (GWP) and Total Equivalent Warming Impact (TEWI), Kyoto protocol, Secondary Refrigerants, Alternative Refrigerants, Use of International Standards: In designing of refrigeration and air conditioning equipment, selection of materials related to refrigeration and air conditioning, safety issues related to refrigeration and air conditioning, industrial and field applications, Air Conditioning Fundamentals: Psychrometrics, comfort, use of psychrometry, HVACR cycles control strategies, architectural, structural, and electrical considerations, conceptual design, environmental criteria and maintenance, design for operation and maintenance, Air Handling System: Fans, Air Duct Design, Diffusers, grillers, and Rates, Louvers, Dampers, Filters, Air Distribution with high flow rates, stratification noise control, indoor air quality Fluid handling system: Steam, Water, high-temperature water, secondary coolers (brines), piping system, pumps, refrigerant distribution, Cooling equipment Design: Refrigeration cycles, compressors, Chillers, condensers, cooling towers, cooling coils, radiant cooling, evaporative cooling, refrigerants.

Fitting and Welding

Welding operation: Arc welding, TIG welding, Mig Welding, Submerged arc welding, Types of Ducts, Duct Fittings, Dampers, Types of Diffusers, RAG, Flexible Duct, Flexible Connector, ?End Cap, Sound Attenuator etc, Piping fittings and Components, Perform door alignment, door gasket fitting, replace door switch, Perform fitting & adjustment of drier, filter & refrigerant controls used in different refrigeration system,  Produce fitting jobs as per drawing (Range of operations: marking, sawing, filing, drilling, reaming, taping and dieing, Different types of Fitting hand tools, power tools, – their use, Function, construction, Specification & their application, Machineries and equipment used in fittings like drilling machines, grinding machines – types, specifications and care and maintenance. Precision measuring instruments – Function, construction, Specification & their application, Perform gas welding, brazing, soldering observing related safety, Perform gas welding, brazing, soldering observing related safety.

Thermal Insulation

Thermal Comfort: Static Comfort Models, Adaptive Comfort Models Thermal Comfort in Winter, Ventilation: Need, threshold limits of contaminants, estimation of ventilation rates, decay equation, air flow round buildings, Natural, wind effect, stack effect, combined effect Mechanical, forced, exhaust, combined Displacement ventilation, Steel plants, car parks, plant rooms, mines, etc, Exhaust ducts, filters, blowers, hoods, chimney, etc. Computer Programming and simulation of air conditioning case studies, Basics of IAQ: Causes & Sources of Indoor Air Quality Problems Risk due to Indoor Air Pollutants, Indoor Air Pollutants, Indoor Air Quality Regulations ASHRAE Guidelines, Calculation of Emission Rate, Indoor Air Quality Models, Indoor Air Quality Assessment of Commercial Buildings, IAQ Applications: Indoor Air Quality Controls, Case studies, Indoor Air Quality: Preparing A Legal Challenge, Indoor Air Quality Design Problems.

Commercial RAC Plants & Car Air Conditioner

Identify RAC tools and equipment and recognize different parts of RAC system. Perform copper tube cutting, flaring, swaging, brazing, Leak testing of RAC unit use dry nitrogen, Pack thermal insulation in RAC unit, Test and diagnosis faults of Car A/C system, Pressure test/leak of the system. Strip the component parts, Cleaning Flushing leak testing, evacuating and charging & use of suitable chemicals (Trichloro Ethylene) for more contaminated coils, Automobile AC, Function of individual components. Refrigerants used & retrofitting of old car / Mobile AC’s, Components of Car A/C systems . Wobble plate compressor with mounting brackets, serpentine evaporator, parallel flow condenser hoses, tubes, receiver, expansion valve, electrical components and siring harness.  Perform servicing of car AC. Fault diagnosis & remedial measures, Make wiring and install car A.C, Diagnosis Fault, remedial measures and check performance.

Commercial compressor & Capacity Control

Carry out servicing, dismantling, checking different parts of different types of commercial compressor, re-placing worn out parts, Check lubrication system. Assemble & check performance, Test compressor motor terminal, start compressor Direct with relay & without relay, technique of flushing, leak testing, replacing capillary & filter drier, evacuation & gas charging, Identify the terminals of sealed compressor and their wiring and measure current, volts, watts and use of DOL starter with different types of motors, Dismantle, repair and assemble hermetic, fixed and variable speed compressor, and test performance, Perform selection of Hermetic compressor for different appliances, starting methods, testing controls & safety cut out used in sealed compressor, Joining of condensers, Evaporator capillary fitter drier by brazing, Function, types, Construction & working, applications of compressors used in commercial refrigeration. Volumetric efficiency, Capacity control, factor influencing volumetric efficiency.

Water Softening Plants & Chiller

Necessary, Causes of water contamination control of scale deposit, corrosion and algae, Water softening and De-scaling method, pump, and fan used. Regenerate and backwash, Service water softening plant, re-generate, back wash and check the performance, Identify different parts of indirect or chillers system. Check components and make wiring, leak test, evacuate and gas charge/ top up. Servicing the plant and trouble shoot, Perform servicing of evaporator & chillers, Identify different part of indirect or chillers system. Check components and make wiring, leak test, evacuate and gas charge/ top up. Servicing the plant and trouble shoot, Air and water cooled chillers – compressors, types and capacities range and application, Chilled water distribution – constant volume, constant primary – variable secondary, variable primary flow, tertiary pumping systems, chilled water cooling coils for various applications, Piping – Direct return and reverse return, district cooling piping systems ( concept only), Definition of STHE & Explain.  Study about Chilled Water Systems, Types, & Application of Chillers  Open loop, & Closed loop system- Chilled water pipe sizing  Types of Valves.

Reaction of Plants, HVAC, Ducts, VAV System

Calculation of duct sizes by Mc-Quay Duct Sizer, Selection of Materials of Ducts, Temperature, Calculate the Flow of Air, ESHF, Ton of Refrigeration, Design of CAV & VAV System, VAV boxes, Single duct cooling and heating, VAV with parallel and series fan powered, induction VAVs, accessories involved, Hands on exercises,  Heat recovery wheel (HRW) for maintaining IAQ (Indoor Air Quality). CAV(constant air Volume) and VAV, Designing, material, classifications, applications and Fabrication, Air filtering, classifications and applications, Air outlets, fans and blowers, Acoustic and air washer, Application of clean rooms, Air curtain, AHU and FCU, HVAC systems, Different heating systems, Calculating the tonnage of heating system.


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