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Elements and Performance Criteria

1. Identify and confirm the work requirement
   • Objective of the analysis and evaluation is determined from workplace instructions
   • Specifications for embedded network air conditioning and HVAC system are sourced and interpreted
   • System faults, deficiencies or discrepancies are identified and confirmed
   • Hazards associated with the work are identified and risks are managed according to workplace procedures and safety and environmental requirements
2. Prepare for analysis and evaluation
   • Evaluation criteria are developed or adopted to meet the objective of the analysis and evaluation
   • Analytical and evaluative methodology is developed or identified from technical information
   • Testing equipment is prepared according to manufacturer specifications and workplace procedures
   • Tools and materials required to support the diagnostic procedure are identified, selected and prepared for use
   • Air conditioning and HVAC system and components are prepared for the diagnostic process
3. Carry out failure analysis
   • Selected analytical and evaluative methodology is followed according to manufacturer specifications and workplace procedures
   • Tests are carried out according to manufacturer specifications, workplace procedures, and safety and environmental requirements
   • Analytical and other diagnostic findings are verified, as required, by using reliable alternative or optional processes
   • Analytical findings and results are assessed against evaluation criteria
   • Valid conclusions are drawn from available evidence and documented according to workplace requirements
4. Make recommendations
   • Options for responding to the objective are determined from further research of technical support information
   • Rectification method is selected from an analysis of the options, operating conditions, regulatory and licensing requirements, and financial implications
   • Report is prepared specifying analysis and evaluation process, and detailing and justifying rectification method or variation to the rectification method
5. Complete work processes
   • Final inspection is made to ensure work is to workplace expectations
   • 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 is processed according to workplace procedures
6. Identify and confirm the work requirement
   • Objective of the analysis and evaluation is determined from workplace instructions
   • Specifications for embedded network air conditioning and HVAC system are sourced and interpreted
   • System faults, deficiencies or discrepancies are identified and confirmed
   • Hazards associated with the work are identified and risks are managed according to workplace procedures and safety and environmental requirements
7. Prepare for analysis and evaluation
   • Evaluation criteria are developed or adopted to meet the objective of the analysis and evaluation
   • Analytical and evaluative methodology is developed or identified from technical information
   • Testing equipment is prepared according to manufacturer specifications and workplace procedures
   • Tools and materials required to support the diagnostic procedure are identified, selected and prepared for use
   • Air conditioning and HVAC system and components are prepared for the diagnostic process
8. Carry out failure analysis
   • Selected analytical and evaluative methodology is followed according to manufacturer specifications and workplace procedures
   • Tests are carried out according to manufacturer specifications, workplace procedures, and safety and environmental requirements
   • Analytical and other diagnostic findings are verified, as required, by using reliable alternative or optional processes
   • Analytical findings and results are assessed against evaluation criteria
   • Valid conclusions are drawn from available evidence and documented according to workplace requirements
9. Make recommendations
   • Options for responding to the objective are determined from further research of technical support information
   • Rectification method is selected from an analysis of the options, operating conditions, regulatory and licensing requirements, and financial implications
   • Report is prepared specifying analysis and evaluation process, and detailing and justifying rectification method or variation to the rectification method
10. Complete work processes
    • Final inspection is made to ensure work is to workplace expectations
    • 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 is 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.

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 using personal protective equipment identifying fire safety equipment environmental requirements, including procedures for preventing loss of refrigerant to the atmosphere.
Analytical and evaluative methodology must include:	diagnostic process, sequence, tests and testing equipment.
Regulatory and licensing requirements must include those of:	Australian Refrigeration Council (ARCtick) Australian automotive code of practice: Control of refrigerant gases during manufacture, installation, servicing or de-commissioning of motor vehicle air conditioners Australian Design Rules (ADRs).

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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:

analyse and evaluate an electrical or electronic fault in the air conditioning and heating, ventilation and air conditioning (HVAC) systems of two different vehicles or machinery

the above faults must involve two of the following:

compressor system

control module

system pressure and temperature sensor

erratic performance of air conditioning and HVAC system.

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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 analysing and evaluating faults in air conditioning and HVAC systems, including procedures for:

working with refrigerants at boiling point given risk of frostbite

working with system lubricants, including carcinogenic oils

handling flammable refrigerants

using personal protective equipment

identifying and using fire safety equipment

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

principles and processes involved in planning and implementing analysis and evaluation of electrical and electronic faults in air conditioning and HVAC systems

design and planning of diagnostic procedures for faults in air conditioning and HVAC systems, including procedures for diagnosing:

electrical faults

electronic faults

types, functions, operation and limitations of air conditioning and HVAC systems, including:

gateway network control module

bus network topography

body control module (BCM) functions

associated network air conditioning and HVAC system components

sensor and actuator control and monitoring systems

control signal circuits

testing procedures for air conditioning and HVAC systems, including the use of:

digital multimeter

scan tool

oscilloscope

manifold and gauge set

recovery unit

vacuum pump

electronic leak detector

nitrogen cylinder and regulator

digital vacuum gauge (vacrometer)

electronic scales

oil injector

infra-red thermometer (pyrometer)

electronic temperature probe

valve core removing or replacement tool

humidity detector (psychrometer)

types, functions, operation and limitations of diagnostic testing equipment required to analyse and evaluate electrical and electronic faults in air conditioning and HVAC systems

procedures for accessing and interpreting scan tool system data, including:

diagnostic trouble codes (DTCs), including:

conditions that set the DTCs

conditions for running DTCs

live data

freeze frame data

waveforms

procedures for documenting and reporting the analysis and evaluation process

regulatory and licensing requirements relating to air conditioning and HVAC systems, including those of:

Australian Refrigeration Council (ARCtick)

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

Australian Design Rules (ADRs).

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