AURETU007 — Overhaul air conditioning and HVAC system compressors

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What an assessment for AURETU007 must cover

39 assessable components: 5 elements (23 performance criteria), 2 performance evidence and 7 knowledge evidence requirements, plus 7 foundation skills. An audit-defensible tool maps every question and task back to these — that mapping is the coverage matrix Auditori generates alongside the assessment.

Elements & performance criteria

1 Prepare to dismantle air conditioning

1.1Job requirements are determined from workplace instructions
1.2Australian automotive code of practice: Control of refrigerant compressor gases during manufacture, installation, servicing or de-commissioning of motor vehicle air conditioners is sourced and interpreted
1.3Dismantling information is sourced and interpreted
1.4Dismantling options are analysed and those most appropriate to the circumstances are selected
1.5Hazards associated with the work are identified and risks are managed
1.6Dismantling tools and equipment are selected and checked for serviceability

2 Dismantle and evaluate compressor and components

2.1Compressor is dismantled in a logical sequence according to manufacturer and workplace procedures, and safety and environmental requirements, and without causing unnecessary damage to components or systems
2.2Components are cleaned for evaluation according to workplace procedures and safety and environmental requirements
2.3Components are measured and compared with manufacturer specifications and serviceability is determined
2.4Component repair method is determined
2.5Unserviceable parts are identified and replacement parts sourced

3 Carry out overhaul

3.1Overhaul information is sourced and interpreted
3.2Overhaul options are analysed and those most appropriate to the circumstances are selected
3.3Overhaul tools and equipment are selected and checked for serviceability
3.4Components are machined, repaired and replaced as required, and adjustments are carried out according to manufacturer specifications, workplace procedures, safety and environmental requirements, and Australian automotive code of practice

4 Assemble compressor and components

4.1Compressor is assembled according to manufacturer specifications, workplace procedures, and safety and environmental requirements
4.2Tolerances and clearances are measured against manufacturer specifications and necessary adjustments are made
4.3Assembly of compressor is completed within workplace timeframes and without causing damage to other components or systems
4.4Post-assembly testing is carried out according to workplace procedures and safety and environmental requirements, and any problems detected as having been introduced during the assembly process are rectified

5 Complete work processes

5.1Final inspection is made to ensure work is to workplace expectations and compressor is presented ready for use or storage
5.2Work area is cleaned, waste and non-recyclable materials are disposed of, and recyclable material is collected
5.3Tools and equipment are checked and stored, and any faulty electrical equipment is identified, tagged and isolated according to workplace procedures
5.4Workplace documentation is processed according to workplace procedures

Performance evidence

overhaul the air conditioning compressors of two different vehicles or machinery, including: - piston, scroll and rotary vane compressors - electric compressors - variable displacement compressors - clutchless compressors
recover and evacuate refrigerants according to required code of practice and regulations, and recharge the system with the appropriate manufacturer refrigerant and oil type.

Knowledge evidence

work health and safety (WHS) and occupational health and safety (OHS) requirements relating to overhauling air conditioning and heating, ventilation and air conditioning (HVAC) system components, including procedures for: - working with refrigerants at boiling point given risk of frostbite - working with system lubricants, including carcinogenic oils - handling flammable refrigerants - using personal protective equipment (PPE) - identifying and using fire safety equipment - environmental requirements, including procedures for preventing loss of refrigerant to the atmosphere
techniques for reading and interpreting technical information, including: - refrigerant saturation temperatures in relation to ambient temperatures and changing levels of humidity - graphic symbols and diagrams
principal types of vehicle air conditioning and HVAC systems, including: - piston, scroll and rotary vane compressors - electric compressors - variable displacement compressors - clutchless compressors
principal refrigerant types and their respective operating pressures and lubricating oils, including: - R12 - R134a - R1234yf
air conditioning and HVAC system component overhaul procedures, including: - methods for cleaning and preparing air conditioning and HVAC system compressor for overhaul - air conditioning and HVAC system compressor dismantling procedures - air conditioning and HVAC system compressor inspection, measuring and evaluation procedures, including methods for measuring and calculating tolerances and clearances - air conditioning and HVAC compressor repair and adjustment procedures, including: - piston, scroll and rotary vane compressors - electric compressors - variable displacement compressors - clutchless compressors - procedures for tolerance measuring and calculating and adjusting components
post-overhaul bench testing procedures, including: - use of manifold gauges and surface probe thermocouples for complete system analysis - analysis of system operation while using gauges, temperature probes, electrical test equipment, scan tools, oscilloscopes and other industry-relevant test equipment
post-overhaul testing of air conditioning and HVAC systems in vehicle or machinery, including: - diagnostic procedures for air conditioning and HVAC systems, including: - accessing and interpreting diagnostic trouble codes (DTCs) - diagnostic flow charts - visual, aural and functional assessments - ambient temperature - centre vent temperature - condenser and suction line temperature - manifold gauge pressure readings - refrigerant leaks.

Foundation skills

Learning skills to:: locate sources of information relevant to compressor efficiently.
Reading skills to:: interpret and assess information from manufacturer and workshop literature when seeking air conditioning and HVAC system compressor specifications and procedures.
Writing skills to:: legibly and accurately fill out workplace documentation when reporting diagnostic findings, making repair recommendations, and recording parts and material used.
Oral communication skills to:: clarify instructions, report evaluation findings and make overhaul recommendations.
Numeracy skills to:: measure air conditioning and HVAC system components and use basic mathematical operations, including addition, subtraction, multiplication and division, to calculate distances, areas, volumes, tolerances and deviations from manufacturer specifications - match refrigerant types and identification numbers to workplace instructions, vehicle and component part lists, and code of practice requirements - interpret weight measurements, including tare and gross weights, and readings on digital and analogue pressure gauges - interpret measurements of temperature and pressure relating to air conditioner and HVAC system performance.
Planning and organising skills to:: plan own work requirements and prioritise and sequence actions to achieve required outcomes and ensure tasks are completed within workplace timeframes.
Technology skills to:: use precision measuring equipment, such as vernier calipers and micrometers - use specialised air conditioning and HVAC system compressor overhaul equipment.

Unit content sourced from training.gov.au — © Commonwealth of Australia, licensed under CC BY 4.0. Auditori is not affiliated with the Department of Employment and Workplace Relations.

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Questions about assessing AURETU007

What does an assessment tool for AURETU007 need to cover?

To satisfy the Principles of Assessment and Rules of Evidence, an assessment for AURETU007 needs to address all 39 unit components: 5 elements with 23 performance criteria, 2 performance evidence requirements, 7 knowledge evidence requirements, and the foundation skills. A coverage matrix mapping each question and task to these components is what an auditor looks for.

How does Auditori generate an assessment tool for AURETU007?

Auditori pulls the current release of AURETU007 from training.gov.au and generates a complete package: candidate assessment, assessor guide with model answers and observation criteria, and a coverage matrix mapping every component. A suitably qualified person then reviews and approves the draft in a built-in workflow — consistent with ASQA's guidance on AI use in VET — before export as branded PDF and editable Word.

Is the first assessment tool really free?

Yes. Every new account includes one free credit — enough to generate the complete assessment tool for AURETU007 — with no card and no subscription required. After that it's pay-as-you-go per unit.

Can I check my existing AURETU007 assessment instead of generating a new one?

Yes — upload your existing assessment or learner guide and Auditori maps it against every element, performance criterion, PE and KE of AURETU007, showing exactly what's covered and what's missing. Mapping costs a quarter of a credit.

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