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Elements and Performance Criteria

1. Prepare to audit energy use for a commercial HVAC/R application
   • WHS/OHS processes and workplace procedures for a given work area are identified and applied
2. WHS/OHS risk control measures and workplace procedures are followed in preparation for the work
3. HVAC/R system assessment and testing area are checked for safety hazards and risk control measures implemented in accordance with safety policy and workplace procedures
4. Relevant documentation is obtained and read to determine performance/certification assessment requirements
5. Advice is sought from the work supervisor to ensure work is coordinated effectively with others
6. Tools, testing devices and materials needed to carry out the work are obtained and checked for correct operation and safety
7. Audit energy use for a commercial HVAC/R application
   • WHS/OHS risk control measures and workplace procedures for carrying out the work are followed
8. Circuits/apparatus/plant are checked and isolated in accordance with WHS/OHS requirements and workplace procedures
9. HVAC/R system performance and energy efficiency requirements and assessment methods are applied to the audit process
10. HVAC/R apparatus assessment and tests are set up in accordance with established test methods and workplace procedures for each parameter being audited
11. HVAC/R system assessment and tests are carried out methodically and results and required actions systematically noted
12. Unexpected situations are dealt with safely in accordance with workplace procedures with the approval of an authorised person/s in a manner that minimises risk to personnel and equipment
13. Auditing is carried out without damage to systems, circuits, the surrounding environment or services using sustainable energy practices
14. Document auditing activities and results
    • WHS/OHS work completion risk control measures and workplace procedures are followed
15. Worksite is cleaned and made safe in accordance with workplace procedures
16. Assessment and test results are evaluated, non-compliance issues identified, and appropriate actions determined and documented
17. Assessment test results and recommendations on non-compliance issues are documented and reported to appropriate person/s in accordance with workplace procedures

Range Statement

Range is restricted to essential operating conditions and any other variables essential to the work environment. Non-essential conditions may be found in the UEE Electrotechnology Training Package Companion Volume Implementation Guide.
Auditing energy use must include at least the following:	two different commercial HVAC/R systems

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Performance Evidence

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements, performance criteria and range of conditions on at least one occasion and include:

interpreting performance/certification requirements correctly setting up and conducting appropriate system assessments and tests identifying non-compliance issues reporting assessment and test results and non-compliance issues and recommendations appropriately dealing with unplanned events analysing results from test data, including: analysing electricity tariffs and implications analysing total consumption versus peak load comparing against industry standards reviewing current practices against ideal applying relevant work health and safety (WHS)/occupational health and safety (WHS/OHS) workplace procedures and practices, including using risk control measures applying sustainable energy principles and practices auditing energy use for commercial heating, ventilation and air conditioning/refrigeration (HVAC/R) system, including: documenting auditing activities results and appropriate actions planning audit energy use for a commercial HVAC/R application.

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Knowledge Evidence

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements, performance criteria and range of conditions and include knowledge of:

HVAC/R energy audits, safe working practices and relevant standards, codes and regulations, including: identification of major energy consuming plant: review of HVAC/R system components methods of energy conservation: review of energy conserving strategies house keeping time schedules good maintenance practices: filters, fans, appropriate set points and dead bands HVAC/R system control: night cycle optimum stop/start purge cycles chiller/boiler/cooling tower sequencing economy cycles (based on temperature or enthalpy) supply air reset condenser water temperature reset electrical load control: power demand control load limiting load shedding set point relaxation ventilation cycles tests and data collection procedures: use of building management system for data collection (trending) use of data recorders (loggers) monitoring of building operations generally analysis of results from test data: comparison against standards (BOMA) revision of current practices against ideal total consumption vs. peak load electricity tariffs and implications methods of reducing energy usage: plant retrofits controls - application of strategies plant - fixed OA to economy, boiler to electric reheat, constant volume to variable air volume (VAV) and cost-benefit (payback) relevant manufacturer specifications relevant safe work method statements (SWMS)/job safety assessments or risk mitigation processes relevant WHS/OHS legislated requirements relevant workplace documentation relevant workplace policies and procedures.

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