COMMERCIAL AND INDUSTRIAL AIR CONDITIONING SYSTEMS

COURSE DESCRIPTION:

This course will equip trainees with the skills to competently work on commercial air-conditioning systems, as well as commission, carry out fault diagnostics and maintenance.

 

COURSE DURATION:

4 weeks (180 hours), 6 days a week

Monday – Friday: (8:00am – 5:00pm)

Saturdays: (8:00am – 1:00pm)

 

CLASS SIZE:

Maximum of 12 trainees per class

 

METHODOLOGY:

  • Each trainee will be issued with a comprehensive folder of course notes, covering the scope of the course. The use of overhead projectors and power point presentations are employed throughout.
     
  • Trainees are encouraged to ask questions and to take an active part in class discussions.
     
  • 70 hours are dedicated to theoretical studies and approximately 110 hours in well-equipped dedicated workshops.
     
  • Each trainee will be issued with hand tools and power tool required to do all practical tasks.
     
  • The instructor demonstrates how to do the task to small groups, the number depending on how difficult the task is.
  • One to one tuition is often provided.
     

 

COURSE CONTENT:

Theory:

  • Introduction to the specialized tools required with the A/C trade
  • Definitions & Terminology used within the trade
  • Identification of refrigerants and their compositions
  • Evacuation and charging of systems
  • Refrigeration cycle
  • Commissioning
  • Fault finding
  • Maintenance
     

Practical:

  • Observe health and safety
  • Guidelines for transporting and storing of cylinders of refrigerant
  • Interpret and follow drawings
  • Assembly of the four basic components and other components used in AC
  • Safely connect to an electrical supply
  • Connect controllers, sensors and thermostats.
  • Set and record settings and parameters
  • Bend, flare and braze copper pipe
  • Refrigerant oil types
  • Pressure and leak testing
  • Liquid charging
  • Commissioning
  • Fault finding 
  • Maintenance
      

 

LEARNING OUTCOMES:

On successful completion of this course each trainee will have a comprehensive understanding of the following;

  • Site safety
  • Safely move and store refrigerant cylinders
  • Commercial refrigeration systems
  • Assemble the four main components and other components of the refrigerant system
  • Connect via an isolator to an electrical supply
  • Set controls, sensors and thermostats
  • Carry out pressure tests and leak tests
  • Evacuate and charge the system
  • Be familiar with refrigerant gases and refrigerant oil types
  • Understand the different types of compressors, condensers, metering devices, evaporators and where they are employed
  • Understand single and 3 phase motors and their starting
  • Commission the system
  • Fault find and maintenance
     

ASSESSMENTS:

  • Assessments are done by an independent assessor on completion of the module.
     
  • Both theory and practical competency is examined. Trainees must pass both examinations for certificate to be issued.
     

CERTIFICATION:

Successful trainees are issued with a competency certificate accredited by CPD Certification Service.