UEERA0047 — Install and commission carbon dioxide refrigeration systems, components and associated equipment

1 Prepare to install CO² refrigeration components and associated equipment

• 1.1WHS/OHS hazards, risk control methods, relevant standards, codes and legislation are obtained and applied
• 1.2Safety hazards not previously identified are reported, assessed and advice on risk control measures is sought from work supervisor
• 1.3Nature of work is obtained from documentation or from work supervisor to determine the scope of work to be undertaken
• 1.4Refrigeration component and equipment installation is appropriately sequenced in accordance with job schedule
• 1.5Sources of materials required for refrigeration work are obtained in accordance with workplace procedures
• 1.6Tools, equipment and testing devices needed to carry out refrigeration work are obtained and checked for correct operation and safety

2 Install CO² refrigeration system

• 2.1Circuits/machines/plant are checked and isolated in accordance with WHS/OHS requirements and workplace procedures
• 2.2Refrigeration components and equipment are installed in accordance with technical industry standards, job specifications and requirements with sufficient access to affect electrical and pipe work connections and maintenance
• 2.3Refrigeration components and equipment are installed straight and square, in the required locations and within acceptable tolerances
• 2.4Pressure testing is conducted at a pressure compatible with CO² and in accordance with industry standards
• 2.5Leaks are located and rectified using testing methods appropriate to the system and in accordance with industry standards and practices
• 2.6Refrigeration system is evacuated to the required level and cleaned of moisture and contaminants in accordance with industry standards and practices
• 2.7Unplanned situations are responded to in accordance with workplace procedures, discussed with appropriate person/s and documented in a manner that minimises risk to personnel and equipment
• 2.8Installation and tests are carried out without damage to apparatus, circuits, the surrounding environment or services and using sustainable energy practices

3 Commission CO² refrigeration system

• 3.1Commissioning work is appropriately sequenced in accordance with job specification
• 3.2Appropriate person/s is consulted to ensure the work is coordinated effectively with others involved on the worksite
• 3.3Extent of the system and location of system components is determined from site inspection and/ or job specifications and diagrams
• 3.4System control settings and operating parameters are determined from job specifications and requirements
• 3.5Tools, equipment and testing devices needed to commission a CO² refrigerant system are obtained and checked for correct operation and safety
• 3.6Refrigeration system is charged safely with refrigerant grade CO² and compatible lubricants in accordance with industry standards and practices
• 3.7Refrigeration actual and specified range of operating conditions are determined from measured and calculated values as they apply to CO² vapour compression and volatile secondary (liquid recirculation/cascade) system in accordance with workplace procedures
• 3.8Pre-commissioning checks are undertaken to ensure components are in place and secure in accordance with manufacturer specifications and industry standards
• 3.9Need to test or measure live operating CO² system is determined in accordance with WHS/OHS requirements and workplace safety procedures
• 3.10CO² refrigeration system pressure controls, valves, pumps and regulators are adjusted to their required settings
• 3.11Testing/measuring devices are used to observe the operation of refrigeration system and fine adjustments of controls are made as required in accordance with manufacturer specifications
• 3.12Commissioning is conducted efficiently, without waste of materials or damage to apparatus, the surrounding environment or services and using sustainable energy practices

4 Complete work and relevant documentation

• 4.1Worksite is cleaned and made safe in accordance with workplace procedures
• 4.2Final check of the installed components and equipment is made to verify that it complies with relevant industry standards and job requirements
• 4.3'As-installed' refrigeration components and equipment are documented and appropriate person/s notified in accordance with workplace established procedures
• 4.4Commissioning results are documented and include final operating parameters of the refrigeration system

What does an assessment tool for UEERA0047 need to cover?

To satisfy the Principles of Assessment and Rules of Evidence, an assessment for UEERA0047 needs to address all 69 unit components: 4 elements with 30 performance criteria, 17 performance evidence requirements, 22 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 UEERA0047?

Auditori pulls the current release of UEERA0047 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 UEERA0047 — with no card and no subscription required. After that it's pay-as-you-go per unit.

Can I check my existing UEERA0047 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 UEERA0047, showing exactly what's covered and what's missing. Mapping costs a quarter of a credit.