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Elements and Performance Criteria

1. Prepare to determine operating conditions of vapour compression system
   • WHS/OHS hazards, risk control methods, relevant standards, codes and legislation are obtained and applied in accordance with workplace procedures
2. Safety hazards, which have not previously been identified are reported in accordance with workplace procedures, and advice on risk control measures is sought from supervisor
3. Details on work are obtained from documentation and/or from supervisor to establish the scope of work to be completed
4. Advice is sought from supervisor, as required, to ensure work is coordinated with others
5. Sources of materials required for work are identified and accessed in accordance with workplace procedures
6. Tools, equipment and testing devices to establish the operating conditions of appliance's vapour compression system are obtained and checked for operational safety
7. Determine operating condition of a vapour compression system
   • Measuring systems operating parameters are used in accordance with workplace procedures and WHS/OHS requirements
8. Appliance vapour compression system is checked and isolated, where necessary, in accordance with workplace procedures and WHS/OHS requirements
9. Actual and specified range of operating conditions of vapour compression system is established from measured and calculated values in accordance with workplace procedures
10. Unplanned situations are responded to in accordance with workplace procedures and discussed with relevant person/supervisor in a manner that minimises risk to personnel and equipment
11. Operating conditions of vapour compression system are determined without damage to appliance, circuits, the surrounding environment and/or services using relevant sustainable energy practices in accordance with workplace procedures
12. Complete work and report activities
    • Worksite and equipment are cleaned and made safe in accordance with workplace procedures
13. Operating condition of a vapour compression system is documented in accordance with workplace procedures, including identification of any parameter that is not within the specified range for the system
14. Supervisor is notified of completion of work 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.
Determining operating conditions of a vapour compression system must include the following:	suction and discharge pressures ambient, evaporator and condensing temperatures evaporator and condenser temperature difference

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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 two separate occasions and include:

applying legislation, industry standards, codes of practice and regulations applying relevant work, health and safety (WHS)/occupational health and safety (OHS) requirements, including applying risk control measures identifying hazards implementing safe working practices completing work and reporting requirements determining operating conditions of appliance vapour compression systems, including: selecting and using appropriate measuring devices recording measurements using calculation methods identifying conditions of refrigerant at various locations in appliance vapour compression system documenting operating conditions dealing with unplanned events/situations in accordance with workplace procedures in a manner that minimises risk to personnel and equipment using manufacturer specifications.

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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:

operating conditions of vapour compression systems used in refrigerated appliances, including: domestic refrigeration vapour compression system heat temperature and relative humidity sensible and latent heat pressure refrigerant conditions vapour compression cycle leak detectors service gauges refrigeration compressors condensers and related components evaporators and related components common refrigerant metering devices basic operating conditions relevant legislation, industry standards, codes of practice and regulations relevant manufacturer specifications relevant risk mitigation processes, including: safe working practices potential hazards risk control measures relevant WHS/OHS legislated requirements relevant workplace documentation relevant workplace policies and procedures.

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