MEM18089 — Maintain and repair central air handling systems
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What an assessment for MEM18089 must cover
36 assessable components: 5 elements (16 performance criteria), 9 performance evidence and 11 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 Undertake preventive maintenance checks/adjustments
- 2.1Check the temperature, humidity, quality, pressure and flow of air delivered to zones by the air handling system for conformance to specification
- 2.2Check the noise/vibration levels of the air handling sub-systems for conformance to specification
- 2.3Perform preventative maintenance tasks according to manufacturers’ specifications using appropriate refrigeration and air conditioning techniques/practices
3 Undertake fault finding on large central air handling systems
- 3.1Identify components of sub-systems
- 3.2Interpret the characteristics and operation of each sub-system component
- 3.3Inspect and test the operational function of each sub-system component and assess correct operation against specification
4 Repair/replace faulty air handling components
- 4.1Localise faulty components and confirm malfunction
- 4.2Dismantle faulty components and repair to manufacturers’ specifications, as required
- 4.3Select replacement parts from manufacturers’ catalogues
5 Return to service large central air handling systems
- 5.1Reassemble components and test for correct operation and assess against specification
- 5.2Verify correct operation of the equipment
- 5.3Complete maintenance records/service reports according to SOPs and legislative requirements
Performance evidence
- following work instructions, standard operating procedures (SOPs) and safe work practices
- identifying and interpreting charts, lists, catalogues, specifications, drawings and relevant legislation with respect to maintaining and repairing central air handling systems
- selecting and using appropriate tools, techniques and equipment necessary to check and assess large central air conditioning system, sub-system and components for conformance against specifications, legislation and regulations
- carrying out preventative maintenance tasks according to manufacturers’ specifications using refrigeration/air conditioning techniques/practices
- identifying and localising faulty components and confirming malfunction by inspection/testing, making required adjustments to achieve specifications
- removing/dismantling and reassembling faulty components and selecting replacement parts from manufacturers’ catalogues to meet the required specifications
- undertaking calculations and numerical operations associated with maintaining and repairing central air handling
- verifying correct operation of the equipment to meet specifications
- completing all maintenance records/reports in accordance with SOPs
Knowledge evidence
- safe work practices and procedures and use of personal protective equipment (PPE)
- appropriate measuring instruments/equipment and specifications for checking humidity, air temperatures, air flows, air quality and air pressure
- tools, equipment, techniques and procedures for performing preventative maintenance on an air conditioning system and sequence of implementation
- procedures for localising and confirming faulty components
- tools, equipment, techniques and procedures for dismantling and repairing faulty components and selecting replacement parts
- measuring instruments/equipment and specifications required for checking sub-system noise and vibration levels
- techniques and procedures for inspecting, testing and assessing each sub-system components against specifications
- specifications of, and process for, identifying primary and secondary refrigerant, or air distribution/reticulation systems
- operational characteristics of each sub-system component
- codes and regulations relevant to the refrigeration/air conditioning industry, including environmental and ozone and greenhouse substance legislation
- procedures for completing maintenance records/service reports and reporting non-conformances
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 MEM18089
What does an assessment tool for MEM18089 need to cover?
To satisfy the Principles of Assessment and Rules of Evidence, an assessment for MEM18089 needs to address all 36 unit components: 5 elements with 16 performance criteria, 9 performance evidence requirements, 11 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 MEM18089?
Auditori pulls the current release of MEM18089 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 MEM18089 — with no card and no subscription required. After that it's pay-as-you-go per unit.
Can I check my existing MEM18089 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 MEM18089, showing exactly what's covered and what's missing. Mapping costs a quarter of a credit.
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