F-Gas Category I & II Training Certificate

Irrespective of the course duration shown below; the F-Gas category I course is the minimum legal FGas qualification required by all RAC operatives who carry out service, maintenance, installation, commissioning, refrigerant charging, recovery or leak checking on RACHP systems.

If you are not familiar with refrigeration science and principles, or function of components in the vapour compression system or Pressure Enthalpy (pH charts) we recommend you attend the 5to10 day course where greater knowledge and practical training will be provided.

Duration contact us for a self assessment form to identify the duration you require

  • Re-assessment only (1 day course – no training)
  • Experienced technicians (3 day course)
  • Inexperienced technicians working in the industry (5 day course provides more practical experience)
  • Novices to refrigeration (10 day course)

The City and Guilds course does not have an expiry date, however you should retrain every 12 months to maintain competence and comply with any quality management system.

You will be provided with pre-course reading to aid your learning prior to arrival.

Skills developed

  • Assess system performance by attaching service manifold to system
  • Identify potential leak points
  • Carry out leak checks
  • Recover Fgas refrigerant
  • Drain oil from a compressor
  • Fabricate and flame braze copper pipe fitting
  • Pressure test and Evacuate a system to industry standards
  • Charge Fgas refrigerant and Commission
  • Measure efficiency by checking superheat and subcooling
  • Remove service manifold with minimal loss of refrigerant
  • Maintain FGas log books
  • Identify hazards associated with refrigerant release

Learning Outcomes

  1. Identify basic systems, terms, principles, units and how these relate to theory and thermodynamics of vapour compression cycles and refrigerants
  2. Identify the causes and effects of global warming and climate change Kyoto Protocol, Kigali agreement (2014), Greenhouse gases, HFC refrigerants & Regulation (EC) no. 842/2006
  3. Identify causes and effects of ozone depletion. Montreal Protocol, HCFC refrigerants & Regulation (EC) no. 2037/2000
  4. Identify stationary refrigerant, air conditioning and heat-pump system components, functions and leakage risk
  5. Identify the hazards and safe working practices for the installation, commissioning and handling of refrigerants
  6. Fabricate and examine pipe work
  7. Undertake pressure testing, evacuation and record completion
  8. Undertake refrigerant charging, leak checking and record keeping
  9. Undertake recovery of refrigerant and oil and prepare for disposal


  • Comprehensive practical test (4hrs)
  • On line multiple choice theory test (120mins)
  • closed book
  • 40 questions
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