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Elements and Performance Criteria

1. Prepare to install and commission flammable refrigerant refrigeration and air conditioning systems
   • WHS/OHS hazards, risk control methods, relevant standards, codes and legislation are obtained and applied
2. Safety hazards not previously identified are noted and risk control measures implemented
3. Scope of work is determined from documentation and/or relevant person/s to establish work to be undertaken
4. Component, equipment installation and commissioning work are sequenced in accordance with job schedule
5. Relevant person/s is consulted to ensure the work is coordinated with others involved
6. Materials required to install pipe work are obtained in accordance with workplace procedures and job specifications
7. Tools, equipment and testing devices required to install and commission components and equipment are obtained in accordance with workplace procedures and checked for correct operation and safety
8. System control settings and operating parameters are determined from job specifications
9. Preparatory work is scheduled to ensure no damage has occurred in accordance with workplace procedures and relevant industry standards
10. Install flammable refrigerant refrigeration and air conditioning systems
    • Circuits/machines/plant are checked and isolated in accordance with WHS/OHS requirements and workplace procedures
11. Components and equipment are installed with sufficient access to affect electrical and pipe work connections and maintenance in accordance with relevant legislation, standards and code requirements, manufacturer instructions, job specificationsand workplace procedures
12. Components and equipment are installed in the required locations and within acceptable tolerances in accordance with relevant legislation, standards and code requirements, manufacturer instructions, job specificationsand workplace procedures
13. Refrigerant tubing and fittings are silver brazed with dry nitrogen to prevent contamination in accordance with relevant legislation, standards and code requirements, manufacturer instructions, job specificationsand workplace procedures
14. Unplanned situations from installation of components and equipment are dealt with in accordance with workplace procedures
15. Quality checks of pipe work, pressure testing and repair of leaks are conducted in accordance with relevant legislation, standard and code requirements, manufacturer instructions, job specificationsand workplace procedures
16. Components and equipment are installed efficiently without waste of materials or damage/contamination to apparatus, the surrounding environment or services using sustainable energy practices
17. Commission flammable refrigerant refrigeration and air conditioning systems
    • Installed system’s pipe work and components are evacuated to the required level in accordance with relevant legislation, standards and code requirements and manufacturer instruction
18. System is charged with flammable refrigerant to the required level in accordance with relevant legislation, standard and code requirements, manufacturer instructions and job specification
19. Refrigeration system pressure controls, valves and regulators are adjusted in accordance with relevant legislation, standard and code requirements, manufacturer instructions, job specificationsand workplace procedures
20. Testing/measuring devices are used to observe operation of the refrigeration system and fine adjustments of controls made, as required, in accordance with relevant legislation, standard and code requirements, manufacturer instructions, job specificationsand workplace procedures
21. Unplanned situations are dealt with safely and with the approval of relevant person/s
22. Commissioning is conducted efficiently without waste of materials or damage to apparatus, the surrounding environment or services using sustainable energy practices
23. Complete installation and commissioning work
    • Worksite is cleaned and made safe in accordance with workplace procedures
24. Final check of the installed components and equipment is made in accordance with relevant industry standards and job specifications
25. 'As installed' components and equipment are documented and relevant person/s notified in accordance with workplace procedures
26. Results of commissioning and final operating parameters are documented and relevant person/s notified 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.
Installing and commissioning major components and associated equipment must include at least the following:	two refrigeration and/or air conditioning systems operating with a flammable refrigerants refrigerant
Major components must include at least the following:	refrigeration compressors condensers condensing units evaporators
Associated equipment must include at least the following:	refrigerant flow controls cycling controls safety controls on-site leak detection equipment ventilation systems spark isolation systems and electrical isolation monitoring equipment inspection accessories

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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 relevant work health and safety (WHS)/occupational health and safety (WHS/OHS) requirements, including using risk control measures commissioning flammable refrigerants systems completing installation and commissioning reports and documentation dealing with unplanned events discharging/recovering and charging refrigerant/lubricants safely and without damage to components evacuating the system to the required level safely and without damage to components identifying the conditions of the refrigerant at various locations installing flammable refrigerants refrigeration and air conditioning systems installing, connecting, securing and aligning components and equipment locating and rectifying leaks preparing to install and commission flammable refrigerants refrigeration and air conditioning systems pressure testing the system to the required level safely and without damage to components reading and interpreting drawings to pipe work layouts and apparatus locations recording measurements selecting and using appropriate measuring devices correctly using commissioning techniques using sustainable energy principles and practices.

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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:

relevant codes, regulations and standards relevant manufacturer specifications relevant safe work method statements (SWMS)/job safety assessments or risk mitigation processes relevant site arrangements, including pipe work requirements and equipment location relevant special features for flammable refrigerant systems, including component compatibility, refrigerant leakage and enclosures relevant system diagrams relevant WHS/OHS legislated requirements relevant workplace documentation relevant workplace quality, policies and procedures sustainable energy principles and practices system commissioning requirements and procedures system, pipe work and component installation requirements and procedures.

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