MEM18086 — Test, recover, evacuate and charge refrigeration systems

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What an assessment for MEM18086 must cover

37 assessable components: 4 elements (16 performance criteria), 6 performance evidence and 15 knowledge evidence requirements. 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 Determine job requirements

1.1Follow standard operating procedures (SOPs)
1.2Comply with work health and safety (WHS) requirements at all times
1.3Use appropriate personal protective equipment (PPE) in accordance with SOPs
1.4Identify job requirements from specifications, drawings, job sheets or work instructions

2 Assess refrigeration system operation

2.1Apply refrigeration system operating principles and terminology to assessment of system operation
2.2Access and interpret all relevant information to commencement of work on the refrigeration system
2.3Undertake checks on the refrigeration system, including appropriate basic electrical safety checks in accordance with relevant codes and regulations
2.4Develop appropriate operating procedures, as required
2.5Determine and record pressures and temperatures
2.6Isolate faults to component level and determine appropriate corrective action
2.7Check the refrigeration system for leaks and any contamination

3 Recover refrigerant and evacuate system

3.1Recover and contain refrigerant used in the system in accordance with codes and regulations
3.2Evacuate the refrigeration system in accordance with codes and regulations

4 Charge the refrigeration system

4.1Charge the refrigeration system with the correct refrigerant
4.2Add appropriate lubricating oil to the refrigeration system
4.3Check the refrigeration system for leaks

Performance evidence

following work instructions, standard operating procedures (SOPs) and safe work practices
identifying and interpreting drawings, instructions, specifications, procedures, codes and regulations to test and check refrigeration components and systems
planning and sequencing refrigeration operations and developing operating procedures for equipment as required in compliance with AS - HB40 Refrigeration and Air Conditioning codes of practice and ozone and greenhouse substance legislation
performing electrical safety checks and tests for conformance to specifications using appropriate techniques and equipment, determining pressures and temperatures and documenting test results and procedures undertaken
identifying faulty components and any system contamination and selecting appropriate materials, equipment and refrigerant to recover, evacuate and charge the system
lubricating and checking the re-charged refrigeration system for leaks and rectifying, where required.

Knowledge evidence

safe work practices and procedures and use of personal protective equipment (PPE) when handling or working with refrigerants
operating principles of refrigeration systems
characteristics, properties and operating specifications of all types of refrigerant
methods of identifying stored refrigerants and the type of refrigerant used in a refrigeration system
relevant codes and regulations applying to refrigeration systems
procedures and safety precautions for testing/checking refrigeration systems
corrective actions for system and component faults, including appropriate basic electrical safety checks
types of refrigerant leak detection equipment/techniques and their applications
causes of contamination in refrigeration systems and their effect on refrigeration system performance
procedures for cleaning contaminated systems, tools and equipment used
care and use of vacuum pumps
tools, techniques and equipment required to carry out refrigerant recovery procedures
procedures for charging refrigeration systems and the correct refrigerant for a range of given applications and tools, techniques and equipment to be used
procedures for storing and disposing of recovered refrigerant and consequences of releasing quantities of refrigerant into the atmosphere
properties and uses of refrigeration oil and the procedures to be followed when checking level and adding lubricating oil.

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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Real, unedited Auditori output (RIIHAN201E shown), branded for a sample RTO:

Questions about assessing MEM18086

What does an assessment tool for MEM18086 need to cover?

To satisfy the Principles of Assessment and Rules of Evidence, an assessment for MEM18086 needs to address all 37 unit components: 4 elements with 16 performance criteria, 6 performance evidence requirements, 15 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 MEM18086?

Auditori pulls the current release of MEM18086 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 MEM18086 — with no card and no subscription required. After that it's pay-as-you-go per unit.

Can I check my existing MEM18086 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 MEM18086, showing exactly what's covered and what's missing. Mapping costs a quarter of a credit.

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