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Elements and Performance Criteria

1. Air conditioning system safety and regulatory compliance requirements are identified and applied
2. Develop compliance pipe work arrangements
   • Location of air conditioning equipment is determined from regulatory requirements, job specifications and site drawings
3. Air conditioning pipe work is arranged to ensure safe and functional operation of the system
4. Air conditioning system pipe work is arranged to comply with technical industry standards, job specifications and requirements
5. Select residential air conditioning system equipment and components
   • Pipe and tubing are selected for suitability for the residential environments it is to be installed
6. Pipe and tubing are sized to meet air conditioning parameters and capacity requirements for the refrigerant to be used
7. Pipe and tubing quantities are determined from equipment location diagrams and job specifications
8. Air conditioning unitary equipment and components are selected to meet load requirements based on calculated or deemed-to-comply solutions
9. Air distribution components and controls are selected to meet functional, specified and regulatory requirements
10. Automatic control devices are selected to meet functional, specified regulatory requirements, current voltage and IP ratings
11. Evidence is obtained that the selected air conditioning equipment and components comply with job requirements and industry standards
12. Document selection of system equipment and components
    • Reasons for selections made, including calculations, are documented in accordance with workplace procedures
13. Air conditioning installation arrangement and specifications for selected items are documented in accordance with workplace procedures and forwarded to appropriate person/s

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.
Selecting residential air conditioning equipment and components, pipe work, air distribution components and controls must include at least the following:	two different air conditioning systems, including: unitary air conditioning equipment and components system controls refrigerant and condensate pipe work air distribution system and components

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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:

arranging pipe work to comply with regulatory and functional requirements selecting appropriate type, size and quantity of pipe and tubing selecting air conditioning unitary equipment and components that meets load requirements selecting air distribution components and controls that meets load requirements selecting automatic control devices that meet functional and regulatory requirements documenting pipe work arrangement, specification for items selected and reasons for the selections made dealing with unplanned events 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.

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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:

air conditioning system equipment, component selection, components and piping selection, safe working practices and relevant standards, codes and regulations, including: residential air conditioning unitary equipment: construction, operation, application and selection of: room air conditioners split systems – wall hang, cassettes and ducted small package units cooling only and reverse cycle line sizing and design: quick selection tables velocity tables pressure drop in lines and fittings oil migration stabilisation effect of varying system capacity oil traps liquid migration control systems: construction, operation, application and selection of: cycling and safety controls pressure-stats thermostats de-ice controls air conditioning automation systems control strategies air distribution: principles: factors affecting the design of ductwork systems flexible ductwork systems static, velocity and total pressure pressure loss: friction and dynamic in ducts, friction charts in fittings, loss coefficients diffuser pressure loss system sizing: standard duct sizes and gauges duct selection fitting selection air diffuser selection balancing relevant industry standards, including industry practices and technologies relevant job safety assessments or risk mitigation processes relevant manufacturer specifications relevant WHS/OHS legislated requirements relevant workplace documentation relevant workplace policies and procedures.

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