Unit of competency Outline

Date retreived
22/07/2026 9:29 AM AWST

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Maintain and repair multistage, cascade and/or ultra-cold industrial refrigeration systems

Maintain and repair multistage, cascade and/or ultra-cold industrial refrigeration systems

Unit of competency
National Code
MEM18091
State Code
OAU38
TGA Status
Current
DTWD Status
Approved
Current Release Number
1.00
Current Release Date
26/06/2019
View on TGA
State Implementation and Classification
Approved Date
Field of Education
031315 - Refrigeration And Air Conditioning Mechanics
Original Release Date
Nominal Hours
36
Description
This unit of competency defines the skills and knowledge required to maintain and repair multistage, cascade and ultra-cold industrial refrigeration systems.It applies to retrofitting existing multi-stage, cascade and/or ultra-cold industrial refrigeration systems; reconditioning components; returning to service and testing systems; and completing service reports for administrative action.A Refrigerant Handling Licence must be held by any person who carries out work in relation to refrigeration and air conditioning equipment. Band: BUnit Weight: 4
Notes
Elements and Performance Criteria
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, pressure and properties of the system for conformance to specification
  • 2.2 Check the noise/vibration levels of the system for conformance to specification
  • 2.3 Perform preventative maintenance tasks according to manufacturers' specifications using refrigeration techniques/practices
3 Undertake fault-finding
  • 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 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 multistage, cascade and/or ultra-cold refrigeration systems
  • 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
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