Application
This unit of competency defines the skills and knowledge required to maintain and repair industrial refrigeration systems.
It applies to industrial refrigeration systems that include large capacity plant typically used for product/process, temperature/environment control, including retrofitting existing industrial refrigeration systems and reconditioning components.
A Refrigerant Handling Licence must be held by any person who carries out work in relation to refrigeration and air conditioning equipment.
What You'll Learn
1. Determine job requirements
- 1.1 Follow standard operating procedures (SOPs)
- 1.2 Comply with work health and safety (WHS) requirements at all times
- 1.3 Use appropriate personal protective equipment (PPE) in accordance with SOPs
- 1.4 Identify job requirements from specifications, drawings, job sheets or work instructions
2. Undertake preventive maintenance checks/ adjustments
- 2.1 Check the temperature and properties of the controlled medium/s for conformance to specification
- 2.2 Check the noise/vibration levels of the industrial refrigeration system components for conformance to specification
- 2.3 Perform preventative maintenance tasks and plant room safety equipment checks according to manufacturers’ specifications using refrigeration principles techniques/practices
3. Undertake fault finding on industrial refrigeration systems and components
- 3.1 Identify system components
- 3.2 Interpret the characteristics and operation of each component
- 3.3 Inspect and test the operational function of each component and assess correct operation against specification
4. Repair/replace faulty industrial refrigeration components
- 4.1 Localise faulty components and confirm malfunction
- 4.2 Remove the refrigerant safely from the system and contain in accordance with procedures and regulatory requirements, where appropriate
- 4.3 Dismantle faulty components and repair to manufacturers’ specifications, as required
- 4.4 Select replacement parts from manufacturers’ catalogues
5. Return to service industrial refrigeration systems and components
- 5.1 Reassemble components and test for correct operation and assess against specification
- 5.2 Charge the system safely with correct refrigerant and in accordance with procedures and regulatory requirements, where appropriate
- 5.3 Verify correct operation of the equipment
- 5.4 Complete maintenance records/service reports according to SOPs and legislative requirements
Assessment Requirements
Performance Evidence
Evidence required to demonstrate competence in this unit must be relevant to and satisfy the requirements of the elements and performance criteria on at least two (2) occasions, on at least two (2) systems, and include:
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 industrial refrigeration systems and components
checking the temperature and properties of controlled mediums for conformance with specifications
carrying out preventative maintenance tasks according to manufacturers’ specifications using refrigeration techniques/practices
checking components for correct operation using appropriate tools, techniques and test equipment and assessing component performance/operation against specifications
identifying and localising faulty components and confirming malfunction by inspection/testing, and making required adjustments to achieve specifications
removing the refrigerant from the system and containing in accordance with procedures and regulatory requirements
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 industrial refrigeration systems and components
charging the system and verifying correct operation of the equipment to meet specifications
completing all maintenance records/reports in accordance with SOPs.
Knowledge Evidence
Evidence required to demonstrate the required knowledge for this unit must be relevant to and satisfy the requirements of the elements and performance criteria and include knowledge of:
safe work practices and procedures and use of personal protective equipment (PPE)
measuring instruments/equipment, specifications and procedures for checking temperatures
properties of controlled mediums
measuring instruments/equipment, specifications and procedures for checking components noise and vibration levels
tools, equipment, techniques and procedures for performing preventative maintenance on air conditioning systems and sequence of implementation
procedures for safely removing the refrigerant and charging the system and all legislative and regulatory requirements
tools, equipment, techniques and procedures for dismantling, repairing, reassembling and testing components
specifications, operational characteristics and process for identifying system components
process for localising and confirming faulty components
procedures for completing maintenance records/service reports and reporting non-conformances.
Assessment Conditions
Assessors must:
have vocational competency in maintaining and repairing industrial refrigeration systems and components at least to the level being assessed with relevant industry knowledge and experience
satisfy the assessor requirements in the Standards for Registered Training Organisations 2015 or its replacement and comply with the National Vocational Education and Training Regulator Act 2011, its replacement or equivalent legislation covering VET regulation in a non-referring state/territory as the case requires
Where possible assessment must occur in operational workplace situations. Where this is not possible or where personal safety or environmental damage are limiting factors, assessment must occur in a sufficiently rigorous simulated environment that reflects realistic operational workplace conditions. This must cover all aspects of workplace performance, including environment, task skills, task management skills, contingency management skills and job role environment skills
Conditions for assessment must include access to all tools, equipment, materials and documentation required, including relevant workplace procedures, product and manufacturing specifications
Assessment processes and techniques must be appropriate to the language, literacy and numeracy requirements of the work being performed and the needs of the candidate.
Foundation Skills
- text: This section describes those required skills (reading, writing, oral communication and numeracy) that are essential to workplace performance in this unit of competency. Foundation skills essential to performance are explicit in the performance criteria of this unit of competency.
Prerequisite Units
- {'code': 'MEM05006', 'title': 'Perform brazing and/or silver soldering'}
- {'code': 'MEM09002', 'title': 'Interpret technical drawing'}
- {'code': 'MEM10002', 'title': 'Terminate and connect electrical wiring'}
- {'code': 'MEM10010', 'title': 'Install pipework and pipework assemblies'}
- {'code': 'MEM11011', 'title': 'Undertake manual handling'}
- {'code': 'MEM12002', 'title': 'Perform electrical/electronic measurement'}
- {'code': 'MEM12023', 'title': 'Perform engineering measurements'}
- {'code': 'MEM12024', 'title': 'Perform computations'}
- {'code': 'MEM13015', 'title': 'Work safely and effectively in manufacturing and engineering'}
- {'code': 'MEM14006', 'title': 'Plan work activities'}
- {'code': 'MEM16006', 'title': 'Organise and communicate information'}
- {'code': 'MEM18001', 'title': 'Use hand tools'}
- {'code': 'MEM18002', 'title': 'Use power tools/hand held operations'}
- {'code': 'MEM18049', 'title': 'Disconnect/reconnect fixed wired equipment up to 1000 volts a.c./1500 volts d.c.'}
- {'code': 'MEM18055', 'title': 'Dismantle, replace and assemble engineering components'}
- {'code': 'MEM18086', 'title': 'Test, recover, evacuate and charge refrigeration systems'}
Parent Qualifications
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MEM23120 — Select mechanical machine and equipment components
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Request Early AccessLast updated from training.gov.au: 25 February 2026