Unit of competency Outline

Date retreived
22/07/2026 12:12 PM AWST

Whilst all efforts are made to provide accurate and timely information from the relevant source/documentation, please be aware that the information supplied may not be the most current version. The accuracy of the detail has not been confirmed by the Department and therefore should not be relied upon without first confirming the contents.

Retrofit and modify air conditioning and HVAC systems

Retrofit and modify air conditioning and HVAC systems

Unit of competency
National Code
AURETU005
State Code
AXD54
TGA Status
Replaced
DTWD Status
Transition (Replaced)
Current Release Number
1.00
Current Release Date
14/04/2016
View on TGA
State Implementation and Classification
Approved Date
13/07/2016
Field of Education
030503 - Vehicle Mechanics
Original Release Date
13/07/2016
Nominal Hours
30
Description
This unit describes the performance outcomes required to retrofit and modify air conditioning systems, including heating, ventilation and air conditioning (HVAC) systems, fitted to a range of vehicles and machinery. It involves preparing for the task, selecting the correct de-gas procedure, carrying out the retrofit and modification procedures, performing post-modification testing, and completing workplace processes and documentation.Air conditioning systems may contain a mixture of both natural and flammable synthetic refrigerants that are difficult to accurately identify and safely recover. To minimise the possibility of ignition, the procedures and equipment used when recovering refrigerants must be those required for flammable refrigerants.It applies to those working in the automotive service and repair industry. Automotive air conditioners, including HVAC systems, include those in agricultural machinery, heavy commercial vehicles, light vehicles or mobile plant machinery.Licensing requirements apply to this unit. Users are advised to check with relevant regulatory authority. An Australian Refrigeration Council accredited (ARCtick) Refrigerant Handling licence is required for those carrying out this work.
Notes
Elements and Performance Criteria
1. Prepare to retrofit system
  • 1.1 Job requirements are determined from workplace instructions
  • 1.2 Retrofit information, manufacturer specifications, and relevant code of practice are accessed and interpreted
  • 1.3 Type of refrigerant is determined according to workplace procedures and safety and environmental requirements
  • 1.4 Retrofit options are analysed and those most appropriate to the circumstances are selected
  • 1.5 Hazards associated with the work are identified and risks are managed
  • 1.6 Retrofit tools and equipment are selected and checked for serviceability
2. De-gas system
  • 2.1 System de-gas procedures are carried out according to manufacturer specifications, workplace procedures, and safety and environmental requirements, and without causing damage to components or system
  • 2.2 Refrigerant is recovered into appropriate refrigerant recovery cylinder for the refrigerant type
  • 2.3 Oil recovered is measured to determine replacement volume
  • 2.4 System is evacuated according to manufacturer specifications, workplace procedures, and safety and environmental requirements
3. Retrofit system
  • 3.1 Technical information relating to vehicle or machinery being retrofitted is accessed and interpreted
  • 3.2 Air conditioning retrofit modification procedures are carried out according to manufacturer specifications, workplace procedures, and safety and environmental requirements
  • 3.3 System is pressure tested for leaks before being re-gassed according to manufacturer specifications, workplace procedures, and safety and environmental requirements
  • 3.4 System is re-gassed with appropriate refrigerant gas and lubricating oil according to manufacturer specifications and workplace procedures
  • 3.5 Post-modification testing is carried out according to workplace procedures and test results are checked to confirm system performance is operating to manufacturer specifications, reported pre-modification issue has been resolved, and no other faults are present
4. Complete work processes
  • 4.1 Final inspection is made to ensure work is to workplace expectations and the vehicle or machinery is presented ready for use
  • 4.2 Work area is cleaned, waste and non-recyclable materials are disposed of, and recyclable material is collected
  • 4.3 Tools and equipment are checked and stored and any faulty electrical equipment is identified, tagged and isolated according to workplace procedures
  • 4.4 Australian Refrigeration Council accredited (ARCtick)service decal sticker and other required workplace documentation are completed and processed according to workplace procedures
No information
No information
Replaces
State Code National Code Title Type
WF129 AURETU3005 Retrofit and modify air conditioning and HVAC systems Unit of competency
Replaced By
State Code National Code Title Type
OCJ79 AURETU105 Retrofit automotive air conditioning and HVAC systems Unit of competency