UEERA0023Design hydrocarbon refrigerated systems

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What an assessment for UEERA0023 must cover

73 assessable components: 3 elements (17 performance criteria), 9 performance evidence and 47 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 design hydrocarbon refrigeration systems

  • 1.1WHS/OHS requirements and workplace procedures for a given work area are identified, obtained and applied
  • 1.2Scope of the refrigeration system is determined from design specifications and/or in consultation with relevant person/s
  • 1.3Safety and systems are identified, obtained and applied in accordance with relevant industry standards
  • 1.4Work supervisor and/or customer/s are consulted to determine functions and parameters of the system required in accordance with design specifications and workplace documentation
  • 1.5Design development work is planned in accordance with workplace procedures for timelines in consultation with others involved

2 Design hydrocarbon refrigeration systems

  • 2.1WHS/OHS risk control measures and workplace procedures for carrying out the work are followed
  • 2.2Relevant hydrocarbon refrigeration system analysis, hydrocarbon refrigeration system components and piping are applied to developing the system design in accordance with workplace procedures and relevant industry standards
  • 2.3Safety, functionality and budgetary considerations are incorporated in the installation design
  • 2.4Equipment is selected in accordance with the design specifications and workplace procedures
  • 2.5Location of components is documented in accordance workplace procedures and operation of system functions
  • 2.6System design draft is checked for compliance in accordance with the design brief and relevant industry standards
  • 2.7System design is documented for submission to relevant person/s for approval
  • 2.8Unplanned events are dealt with in accordance with problem-solving techniques and workplace procedures

3 Obtain approval for hydrocarbon refrigeration systems design

  • 3.1System design is presented to customer and/or relevant person/s in accordance with workplace procedures
  • 3.2Requests for alterations to the design are negotiated with relevant person/s in accordance with workplace procedures
  • 3.3Final design is documented and approval obtained from relevant person/s
  • 3.4Quality of work is monitored in accordance with workplace procedures and relevant industry standards

Performance evidence

  • understanding required operating functions and parameters from the design specification
  • developing the design within the safety, regulatory and functional requirements and budget limitations
  • documenting and presenting design effectively
  • successfully negotiating design alteration requests
  • obtaining approval for final design
  • dealing with unplanned events
  • applying relevant work health and safety (WHS)/occupational health and safety (OHS) requirements, including using risk control measures
  • designing hydrocarbon refrigeration systems
  • preparing to design hydrocarbon refrigeration systems

Knowledge evidence

  • hydrocarbon refrigeration systems design, components and piping design requirements, safe working practices and relevant standards, codes and regulations, including:
  • technical standards, regulations and codes for hydrocarbon refrigeration systems:
  • standard philosophy and format
  • standards, regulations and codes that apply to hydrocarbon refrigeration systems
  • equipment manufactures specifications
  • hydrocarbon refrigeration system design requirements:
  • applications of hydrocarbon refrigeration systems:
  • domestic refrigerators
  • commercial refrigeration
  • thermodynamic properties of hydrocarbon
  • hydrocarbon phase diagram
  • hydrocarbon properties tables and chart
  • hydrocarbon refrigeration cycle:
  • Ph diagram representation
  • expansion, evaporation, compression and condensation processes
  • performance analysis of hydrocarbon refrigeration systems:
  • refrigerating effect
  • heat of rejection
  • heat of compression
  • coefficient of performance
  • effects of suction superheating on cycle efficiency
  • effects of liquid sub-cooling on cycle efficiency
  • actual hydrocarbon refrigeration cycles:
  • superheating inside and outside the refrigerated space
  • liquid-suction heat exchangers
  • pressure drop in piping due to friction and dynamic losses
  • hydrocarbon refrigeration system components and piping:
  • design preliminaries:
  • system operating parameters
  • project specifications
  • equipment selection criteria
  • selection tables, charts and catalogues
  • materials used with hydrocarbon refrigerants
  • heat exchanger selection:
  • selection of evaporators
  • selection of condensers
  • compressor selection
  • liquid expansion devices selection
  • system load balance point
  • refrigeration line design and sizing
  • automatic controls
  • safety:
  • safety data sheets (SDS)/material safety data sheets (MSDS) for hydrocarbon refrigerants
  • problem-solving techniques
  • relevant WHS/OHS legislated requirements
  • relevant workplace budget, quality, policies and procedures
  • relevant workplace documentation

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 UEERA0023

What does an assessment tool for UEERA0023 need to cover?

To satisfy the Principles of Assessment and Rules of Evidence, an assessment for UEERA0023 needs to address all 73 unit components: 3 elements with 17 performance criteria, 9 performance evidence requirements, 47 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 UEERA0023?

Auditori pulls the current release of UEERA0023 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 UEERA0023 — with no card and no subscription required. After that it's pay-as-you-go per unit.

Can I check my existing UEERA0023 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 UEERA0023, showing exactly what's covered and what's missing. Mapping costs a quarter of a credit.

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