Certified in HVAC Engineering

Heating Ventilation & Air-Conditioning

As per ASHRAE and ISHRAE Standards

Prelude to HVAC


Modes of Heat Transfer

Sensible Heat and Latent Heat

Basic Components of Air-Conditioning and Refrigeration machines

Basic Refrigeration System or Vapor Compression Cycle

Pressure – Enthalpy Chart

Function & Types of Compressor

Function & Types of Condenser

Function & Types of Expansion Valve

Function & Types of Evaporator

Accessories used in the System

Refrigerant and Brines

Classification of Air-Conditioning System

Window A/C

  • Working of Window A/C with Line Diagrams

Split A/C

  • Types of Split A/C
  • Working of Split A/C with Line Diagrams

Ductable Split A/C

  • Working of Ductable Split A/C with Line Diagrams

·         Variable Refrigerant Volume (VRV)/ Variable Refrigerant Flow (VRF)

Ductable Package A/C

  • Working of Ductable Package A/C with Line Diagrams

Package Roof Top Units

Central Plant Chill Water System

Categories of Air Conditioning

All air system

All water system

Air - water system

Direct Refrigerant system

Study of Psychrometric Charts

Dry Bulb Temperature

Wet Bulb Temperature

Dew Point Temperature

Relative Humidity

Humidity Ratio


  • Heating
  • Cooling
  • Cooling and Dehumidification
  • Heating and Humidification

·         Finding Values Using the Chart

Load Calculation

Survey of Building

Cooling Load Steps

Finding Temperature difference (ΔT)

  • Wall
  • Glass
  • Roof
  • Partition

Finding ‘U’ Factor

  • Wall
  • Glass
  • Roof
  • Partition

Finding Ventilation requirement for IAQ

Load Calculations (Manually using E-20 form)

ESHF, ADP & Air Flow Rate (CFM) Calculation

Air Distribution System

Duct-Definition & Terminology

Duct Design consideration

Duct sizing methods

Duct sizing as per Aspect Ratio

Finding Duct size using Ductulator

Calculation of Number of sheets for Duct

Gauge selection for Sheet Metal

Bill of Materials for Duct Network

Legends and Symbols used in the HVAC Industry

Selection of Diffusers and Grilles

Duct Materials and Insulation materials used in HVAC Industry

Study of Overseas Drawings

Duct Routing - Preparation of single line diagram (SLD)

Preparation of Layouts (Double line Diagram - DLD) as per SMACNA rules

Openings for Ducts passing through Wall

Sectional drawing @ Duct supports

Concept of CAV & VAV

Static Pressure Calculation

Selection of Motor HP

Selection Fan/Blower RPM

Hydronic System

Classification of Water Piping

Pipe sizing for chill water system

Fittings used in the HVAC Piping System

Valves used in the HVAC Piping System

Function of Valves

Openings for CHW Pipes passing through Wall

Sectional drawing @ CHW Pipe supports

Pump Head Calculation

Selection of Pump

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