This course is designed for engineers and technicians from a wide range of abilities and backgrounds and will provide an excellent introduction to the fundamentals of heating, ventilation and air-conditioning. It commences with a review of psychrometric charts and then examines the factors that influence design choices, indoor air quality, load calculations and heating/ventilation and air-conditioning systems. Numerous tips and tricks taught throughout the course make it very practical and topical to your every day applications.


By the end of this course you will be able to:

  • Maintain and troubleshoot HVAC systems
  • Understand and apply the psychrometic chart
  • Design for good air quality
  • Perform basic load calculations
  • Initiate an effective inspection and maintenance program
  • Reduce forced outages and prevent serious damage to HVAC equipment
  • Provide an overview of the legislative requirements plus the essential steps and responsibilities for the maintenance and repair of HVAC systems
  • Outline the technologies available for the efficient energy management using HVAC systems

Content Outline

MODULE 1: Introduction to HVAC

  • Principles of thermodynamics
  • Pressure and temperature relationship
  • Fundamentals of heat transfer
  • Fundamentals of fluid flow

MODULE 2: Psychrometry

  • Introduction to psychrometry
  • The properties of air
  • Understanding the psychrometric charts

MODULE 3: Requirements of Comfort Air Conditioning

  • Air purification methods
  • Thermodynamics of the human body
  • Role of clothing
  • Comfort and comfort chart
  • Design considerations
  • Requirements of temperature and humidity-high heat load industries
  • Recommended inside design conditions
  • Outside summer design conditions for some foreign cities
  • Indoor Air Quality
  • Design of ventilation systems

MODULE 4: Heating and Cooling Load Calculation Procedure

  • Design considerations
  • Internal Sensible and Latent Heat Load components
  • Design condition - indoor & outdoor conditions
  • External Load components
  • Miscellaneous heat sources
  • Fresh air load

MODULE 5: HVAC Systems

  • Heating systems
  • Hot water heating system
  • Steam heating systems
  • Electric heating systems
  • Air-conditioning systems: General
  • Air handling units
  • Functional variations in the design
  • Capacity calculation of an air handling unit

MODULE 6 - Variable Air Volume (VAV) systems

  • System concept
  • Different VAV systems

MODULE 7 - Duct design, air flow and its distribution

  • Air flow and pressure losses
  • Duct design
  • Air distribution system inside space
  • Ventilation systems

MODULE 8 - Insulation of Air-conditioning systems and Air-Conditioning Equipment

  • Desired properties of an ideal insulating material
  • Factors affecting thermal conductivity
  • Types of insulation materials
  • Insulated systems
  • Importance of relative humidity for the selection of insulation
  • Air-conditioning equipment
  • Air filters
  • Humidifiers
  • Dehumidifiers
  • Fans and blowers

MODULE 9 - Refrigeration

  • Methods of refrigeration
  • Air refrigeration system
  • Vapour compression refrigeration system
  • Absorption refrigeration system
  • Important refrigerants
  • Refrigeration equipment

MODULE 10 - Controls and Instrumentation

  • Elements of control
  • Types of control system
  • Typical control systems

MODULE 11 - Installation, Commissioning, Operation, Testing and Maintenance

  • Installation
  • Charging the refrigeration unit
  • Adding oil to the compressor
  • Commissioning
  • Other service operations
  • Maintenance

MODULE 12 - Fault finding and troubleshooting and Green House effect and Future Refrigerants

  • Troubleshooting
  • The greenhouse effect
  • History of CFCs
  • Ozone depletion by CFCs and the greenhouse effect
  • Future refrigerants to replace CFCs

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