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Elements and Performance Criteria

1. Prepare to install air conditioning system
   • Job requirements are determined according to workplace instructions
   • Installation information is sourced and interpreted
   • Installation options are considered and those most appropriate to the circumstances are selected
   • Hazards associated with the work are identified and risks are managed
   • Tools, equipment and materials are selected and checked for serviceability
2. Install air conditioning system components
   • Air conditioning system components are installed according to workplace procedures and safety and environmental requirements, and without causing damage to components and vehicle or machinery systems
   • Installation is visually checked prior to pressure testing and system charging
3. Charge air conditioning system with refrigerant and lubricating oil
   • System is pressure tested for leaks prior to being evacuated using approved methods and equipment
   • System is charged with appropriate refrigerant gas and lubricating oil according to manufacturer specifications, workplace procedures, and relevant industry code of practice
4. Test air conditioning system
   • Post-installation testing is carried out to ensure performance and operation comply with manufacturer specifications
   • Test results are reported according to workplace procedures
5. Complete work processes
   • Final inspection is made to ensure work is to workplace expectations and vehicle or machinery is presented ready for use
   • Work area is cleaned, waste and non-recyclable materials are disposed of, and recyclable material is collected
   • Tools and equipment are checked and stored and any faulty electrical equipment is identified, tagged and isolated according to workplace procedures
   • Workplace documentation, including ARCtick service decal sticker, is completed and processed according to workplace procedures
6. Prepare to install air conditioning system
   • Job requirements are determined according to workplace instructions
   • Installation information is sourced and interpreted
   • Installation options are considered and those most appropriate to the circumstances are selected
   • Hazards associated with the work are identified and risks are managed
   • Tools, equipment and materials are selected and checked for serviceability
7. Install air conditioning system components
   • Air conditioning system components are installed according to workplace procedures and safety and environmental requirements, and without causing damage to components and vehicle or machinery systems
   • Installation is visually checked prior to pressure testing and system charging
8. Charge air conditioning system with refrigerant and lubricating oil
   • System is pressure tested for leaks prior to being evacuated using approved methods and equipment
   • System is charged with appropriate refrigerant gas and lubricating oil according to manufacturer specifications, workplace procedures, and relevant industry code of practice
9. Test air conditioning system
   • Post-installation testing is carried out to ensure performance and operation comply with manufacturer specifications
   • Test results are reported according to workplace procedures
10. Complete work processes
    • Final inspection is made to ensure work is to workplace expectations and vehicle or machinery is presented ready for use
    • Work area is cleaned, waste and non-recyclable materials are disposed of, and recyclable material is collected
    • Tools and equipment are checked and stored and any faulty electrical equipment is identified, tagged and isolated according to workplace procedures
    • Workplace documentation, including ARCtick service decal sticker, is completed and processed according to workplace procedures

Range Statement

This section specifies work environments and conditions that may affect performance. Essential operating conditions that may be present (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) are included. Bold italicised wording, if used in the performance criteria, is detailed below.

Installation informationmust include:	manufacturer specifications installation fitting instructions Australian automotive code of practice: Control of refrigerant gases during manufacture, installation, servicing or de-commissioning of motor vehicle air conditioners.
Installation options must include:	refrigerant types: R134a R1234yf R290 and R600a blends fluid levels: refrigerant lubricating oils filter serviceability: receiver dryer cabin filter O rings and seals adjustments and operational testing visual inspections and documentation.
Safety and environmental requirements must include:	work health and safety (WHS) and occupational health and safety (OHS) requirements, including procedures for: working with refrigerants at boiling point given risk of frostbite working with system lubricants, including carcinogenic oils handling flammable refrigerants and refrigerant recovery equipment selecting and using personal protective equipment (PPE) identifying and using fire safety equipment environmental requirements, including procedures for preventing loss of refrigerant to atmosphere.
ARCtick service decal sticker informationmust include:	name of the service organisation ARCtick business authority number quantity of refrigerant added refrigerant and oil type service date technician’s name and licence number.

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Performance Evidence

Before competency can be determined, individuals must demonstrate they can perform the following according to the standards defined in this unit’s elements, performance criteria, range of conditions and foundation skills:

install an air conditioning system in two different vehicles or machinery.

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Knowledge Evidence

Individuals must be able to demonstrate knowledge of:

work health and safety (WHS) and occupational health and safety (OHS) requirements relating to installing air conditioning systems, including procedures for:

working with refrigerants at boiling point given risk of frostbite

working with system lubricants, including carcinogenic oils

handling flammable refrigerants and refrigerant recovery equipment

selecting and using personal protective equipment (PPE)

identifying and using fire safety equipment

environmental requirements, including procedures for preventing loss of refrigerant to the atmosphere.

methods for locating manufacturer specifications and workplace procedures, including safe operating procedures and current Australian automotive code of practice

requirements of Automotive code of practice: Control of refrigerant gases during manufacture, installation, servicing or de-commissioning of motor vehicle air conditioners

principal types of vehicle air conditioning systems, including:

piston, scroll and rotary vane compressors

electric compressors

variable displacement compressors

clutchless compressors

application, purpose and operation of air conditioning systems, including:

climate control

multi-zone systems

refrigerant types, operating pressures and suitable lubricating oils

techniques for reading and interpreting technical information, including:

refrigerant saturation temperatures in relation to ambient temperatures and changing levels of humidity

graphic symbols and diagrams

procedures for using and operating tools and equipment, including:

hand tools

manifold and gauge sets

refrigerant hoses and couplers

recovery units and vacuum pumps

electronic leak detector

nitrogen cylinder and regulator

digital vacuum gauge (vacrometer)

oil injector

infra-red thermometer (pyrometer)

electronic temperature probe

electronic scales

valve core removal or replacement tool

humidity detector (psychrometer)

multimeter

procedures for installing air conditioning systems and components, including:

techniques for reading and interpreting technical information, wiring diagrams and graphic symbols

methods of determining wiring and connection type and size for system

methods of determining placement of components on vehicle or machinery

methods of connecting system and components to existing electrical system without causing damage or problems, including:

selecting and soldering wires

selecting and crimping terminals

removing and replacing connectors

post-installation testing procedures, including:

validating effectiveness of installation, including checking for:

electrical connector mating

ambient temperature

centre vent temperature

condenser and suction line temperature

manifold gauge pressure readings

refrigerant leaks

procedures for completing workplace documentation, including ARCtick sticker.

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