UEERA0046 — Install and commission ammonia refrigeration systems, components and associated equipment
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What an assessment for UEERA0046 must cover
79 assessable components: 3 elements (22 performance criteria), 18 performance evidence and 39 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 Prepare to install ammonia refrigeration system
- 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 sought from the project engineer
- 1.3Nature of work is obtained from documentation or from project engineer to determine the scope of work to be undertaken
- 1.4Advice is sought from the project engineer to ensure refrigeration work is coordinated effectively with others
- 1.5Sources of materials required for work are determined 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 and commission ammonia refrigeration system
- 2.1Measuring system operating parameters are conducted in accordance with WHS/OHS requirements and workplace procedures
- 2.2Major components and pipe work are installed in accordance with relevant industry standards, codes of practice and regulations
- 2.3Pressure testing is conducted at a pressure compatible with ammonia and in accordance with industry standards and practices
- 2.4Precautions are taken to prevent damage to components while pressure testing the system
- 2.5Leaks are located and rectified using testing methods appropriate to the refrigeration system and in accordance with industry standards and practices
- 2.6Refrigeration system is evacuated in accordance with industry standards and practices
- 2.7Refrigeration system is charged safely with ammonia and lubricants in accordance with industry standards and practices
- 2.8Refrigeration pre-operational checks are carried out on operating and safety controls in accordance with manufacturer specifications
- 2.9Refrigeration system is commissioned and adjustments made to operating and safety controls
- 2.10Temperature reduction of cool rooms and freezers are undertaken in accordance with industry standards and practices
- 2.11Refrigeration maintenance is carried out and includes inspection and cleaning of strainers and filters and collection of oil sample for analysis
- 2.12Training is conducted for person/s responsible for the refrigeration system operation and maintenance
3 Complete and report on commissioning of ammonia refrigeration system
- 3.1Worksite is cleaned and made safe in accordance with workplace procedures
- 3.2Contaminated refrigerant and lubricant are dealt with in accordance with legislative/regulatory requirements
- 3.3Refrigeration operation condition and commissioning data are documented and includes parameters not within the specified range for the system
- 3.4Refrigeration mechanical and electrical commissioning documentation is completed in accordance with workplace procedures
Performance evidence
- applying relevant legislative, industry standards and practices
- applying relevant work health and safety (WHS)/occupational health and safety (WHS/OHS) requirements and workplace procedures and practices, including using risk control measures
- applying sustainable energy principles and practices
- conducting refrigeration system operation and maintenance
- dealing with unplanned events/situations in accordance with workplace procedures in a manner that minimises risk to personnel and equipment
- discharging/charging refrigerant/lubricants and pressure testing the system without damage to components
- documenting operating conditions correctly
- identifying the conditions of the ammonia (R717) refrigerant at various locations in the vapour compression and liquid recirculation system
- installing, connecting, securing and aligning components and equipment and ensuring that equipment and pipe work is compliant with relevant industry standards, codes of practice and regulations
- locating and rectifying leaks
- optimising system performance and efficiency
- pressure testing entire system at the appropriate design test pressures
- pressure testing, charging/discharging refrigerant/lubricants and determining the operating conditions of ammonia vapour compression and liquid recirculation refrigeration system
- recording measurements
- removing system contaminants and evacuating
- selecting and using appropriate measuring devices correctly
- using calculation methods accurately
- using methodical and efficient commissioning techniques in accordance with workplace procedures
Knowledge evidence
- cool room and freezer construction, including:
- commissioning procedures
- construction materials
- construction methods
- defrost methods
- underfloor heating
- installation and commissioning techniques for ammonia refrigeration systems
- insulation and vapour barrier, including insulation materials and vapour barriers
- refrigeration control system testing and adjustment, including:
- central programmable logic controller (PLC) system
- defrost methods and controls
- flow controls
- refrigerant level controls
- refrigerant pressure controls
- temperature controls
- refrigerant piping, including:
- hydraulic shock
- installation principles
- material compatibility
- pipe sizing principles
- pressure testing/evacuation
- relief valves
- welding
- relevant job safety assessments or risk mitigation processes
- relevant legislative, industry standards and practices
- relevant manufacturer specifications
- relevant WHS/OHS legislated requirements
- relevant workplace documentation, including reports on installation and commissioning of ammonia refrigeration systems
- relevant workplace policies and procedures, including workplace emergency response plan
- testing and commissioning ammonia refrigeration systems, including:
- air cooled condensers
- compressors
- direct contact freezing
- evaporative condensers
- evaporators (air/fluid cooling)
- high pressure receivers
- secondary refrigerants
- start-up and shutdown procedures
- water cooled condensers
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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Questions about assessing UEERA0046
What does an assessment tool for UEERA0046 need to cover?
To satisfy the Principles of Assessment and Rules of Evidence, an assessment for UEERA0046 needs to address all 79 unit components: 3 elements with 22 performance criteria, 18 performance evidence requirements, 39 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 UEERA0046?
Auditori pulls the current release of UEERA0046 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 UEERA0046 — with no card and no subscription required. After that it's pay-as-you-go per unit.
Can I check my existing UEERA0046 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 UEERA0046, showing exactly what's covered and what's missing. Mapping costs a quarter of a credit.
Related units
- UEERA0001 — Analyse the operation of HVAC air and hydronic systems
- UEERA0002 — Analyse the psychrometric performance of HVAC/R systems
- UEERA0003 — Analyse the thermodynamic performance of HVAC/R systems
- UEERA0004 — Analyse vibration and noise in refrigeration and air conditioning systems
- UEERA0005 — Apply safety awareness and legal requirements for ammonia refrigerant
- UEERA0006 — Apply safety awareness and legal requirements for carbon dioxide refrigerant
- UEERA0007 — Apply safety awareness and legal requirements for flammable refrigerants
- UEERA0008 — Audit HVAC/R control systems for compliance with regulations and standards
- UEERA0009 — Audit energy use for commercial HVAC/R systems
- UEERA0010 — Commission complex heating, ventilation and air conditioning (HVAC) systems
- UEERA0011 — Commission complex refrigeration systems and equipment
- UEERA0012 — Commission complex refrigeration/air conditioning control systems
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