Unit of competency Outline

Date retreived
23/07/2026 9:25 PM AWST

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Service and repair self-contained flammable refrigerants air conditioning and refrigeration systems

Service and repair self-contained flammable refrigerants air conditioning and refrigeration systems

Unit of competency
National Code
UEERA0084
State Code
OBZ09
TGA Status
Current
DTWD Status
Approved
Current Release Number
1.00
Current Release Date
05/10/2020
View on TGA
State Implementation and Classification
Approved Date
12/07/2021
Field of Education
031315 - Refrigeration And Air Conditioning Mechanics
Original Release Date
12/07/2021
Nominal Hours
18
Description
This unit involves the skills and knowledge required to service and repair self-contained air conditioning and refrigeration systems using Class A2, A2L and A3 flammable refrigerants.It includes servicing and repairing self-contained air conditioning and refrigeration equipment using flammable refrigerant. It also includes working safely; applying refrigeration principles that apply to flammable refrigerant; following service manuals; testing, locating and rectifying faults and defective components; and completing necessary service documentation. Some flammable refrigerants, for example, fluorocarbons like R32, are controlled under the national Ozone Protection and Synthetic Greenhouse Gas Management Regulations 1995. Therefore, to undertake this unit, the learner must have a relevant Trainee Refrigerant Handling Licence if it includes work on refrigeration and air conditioning equipment that carries the risk of a fluorocarbon refrigerant being emitted.The skills and knowledge described in this unit require a national Refrigerant Handling Licence if it includes work on refrigeration and air conditioning equipment that carries the risk of a fluorocarbon refrigerant being emitted while decanting the refrigerant or manufacturing, installing, commissioning, servicing, maintaining or decommissioning refrigeration and air conditioning equipment.The skills and knowledge described in this unit require a licence or permit to practice in the workplace where work is carried out on electrical installations which are designed to operate at voltages greater than 50 volt (V) alternating current (a.c.) or 120 V direct current (d.c.). Competency development activities in this unit are subject to regulations directly related to licensing. Where a licence or permit to practice is not held, skills and knowledge described in this unit require a relevant contract of training, such as an Australian Apprenticeship. Additional and/or other conditions may apply in some jurisdictions subject to regulations related to refrigeration, air conditioning or electrical work. Practice in the workplace and during training is also subject to work health and safety (WHS)/occupational health and safety (OHS) regulations. Permits may also be required for some work environments, such as confined spaces, working aloft, near live electrical apparatus and site rehabilitation.
Notes
Elements and Performance Criteria
1 Prepare to service and repair flammable refrigerants refrigeration and air conditioning systems
  • 1.1 WHS/OHS hazards, risk control methods, relevant standards, codes and legislation are obtained and applied
  • 1.2 Hazards not previously identified are reported and advice on risk control measures sought from supervisor
  • 1.3 Details of the work are obtained from documentation and/or from supervisor to determine the scope of work to be completed
  • 1.4 Advice is sought from supervisor, as required, to ensure work is coordinated effectively with others
  • 1.5 Materials required for the work are identified and obtained in accordance with workplace procedures
  • 1.6 Tools, equipment and testing devices required for the work are obtained and checked for correct operation and safety in accordance with workplace procedures
2 Repair and service flammable refrigerants refrigeration and air conditioning systems
  • 2.1 Measuring system operating parameters are conducted in accordance with WHS/OHS requirements and workplace safety procedures
  • 2.2 Checks are conducted to ensure system/component parts are isolated, as required, in accordance with workplace procedures and WHS/OHS requirements
  • 2.3 Refrigerant is removed from system safely in accordance with relevant legislation, standards and code requirements, manufacturer instructionsand workplace procedures
  • 2.4 Pressure testing is conducted and precautions taken to prevent damage to components in accordance with workplace procedures and WHS/OHS requirements
  • 2.5 Pressure testing is conducted at a pressure compatible with flammable refrigerants in accordance with industry standards and WHS/OHS requirements
  • 2.6 System leaks are located and rectified using testing methods appropriate to the system in accordance with industry standards and workplace procedures
  • 2.7 System is evacuated for an operational flammable refrigerant system in accordance with relevant industry standards and workplace procedures
  • 2.8 System is charged safely with flammable refrigerants and compatible lubricants in accordance with relevant legislation, standards and code requirements, manufacturer instructionsand workplace procedures
  • 2.9 Actual and specified range of operating conditions are determined from measured and calculated values as they apply to flammable refrigerants vapour compression systems in accordance with workplace procedures and industry standards
  • 2.10 Methods for dealing unplanned situations are discussed, as required, with relevant person/s for approval and documented in accordance with workplace procedures
  • 2.11 Operating conditions are determined without damage to apparatus, circuits, the surrounding environment and/ or services using sustainable energy practices
3 Complete and report servicing and repairing flammable refrigerants refrigeration and air conditioning systems
  • 3.1 Worksite is cleaned and made safe in accordance with workplace procedures
  • 3.2 Contaminated refrigerant and lubricant are dealt with in accordance with legislative/regulatory and industry standards and requirements
  • 3.3 Operation conditions are documented and include identification of any parameter that is not within the specified range for the system
  • 3.4 Work supervisor is notified of work completion in accordance with workplace procedures
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