Required skills

communication skills to

follow verbal and written instructions

clarify workplace instructions and determine job requirements

gain information from appropriate persons and assistance as required

initiative and enterprise skills to

apply learning when retrofitting and modifying various air conditioning and HVAC systems

recognise a workplace problem or potential problem and take action

learning skills to identify sources of information assistance and expert knowledge to expand skills knowledge and understanding

literacy skills to

read and follow information in written job instructions specifications standard operating procedures charts lists drawings and other applicable reference documents

obtain and record measurements

document required repairs and parts

numeracy skills to

test measure and analyse test equipment results compared to desired system performance

assess tolerances and apply accurate measurements and adjustments

planning and organising skills to

plan own work requirements and prioritise actions to achieve required outcomes and ensure tasks are completed on time

identify risk factors and take action to minimise them

problemsolving skills to

refer problems outside area of responsibility to appropriate person and suggest possible causes

seek information and assistance as required to solve problems

selfmanagement skills to

select and use appropriate equipment materials processes and procedures

recognise limitations and seek timely advice

follow workplace documentation such as codes of practice and operating procedures

teamwork skills to apply knowledge of own role to complete activities efficiently to support team activities and tasks

technical skills to use workplace technology and tools relating to the retrofit and modification of air conditioning and HVAC systems including

specialist tools and equipment

measuring equipment

computerised technology

technology skills to

operate diagnostic and test equipment

use technology to collect analyse and provide information

Required knowledge

WHS regulations requirements equipment material and personal safety requirements including

legislation

ARC code of practice

principles of operation of automotive air conditioning and HVAC systems including

piston scroll and rotary vane compressors

electric compressors

variable displacement compressors

clutchless compressors

application purpose and operation of air conditioning and HVAC systems including

climate control

multizone systems

technical information relating to air conditioning and HVAC systems including

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

graphic symbols and diagrams

diagnostic and testing procedures including

use of manifold gauges and surface probe thermocouples for complete system analysis

diagnostic procedures for air conditioning and HVAC systems including

accessing and interpreting diagnostic trouble codes

diagnostic flow charts

analysis of system operation using gauges temperature probes electrical test equipment scan tools oscilloscopes and other industryrelevant test equipment

visual aural and functional assessments including

component damage and wear

component corrosion

vacuum and leaks

repair procedures including

component removal and replacement procedures

component and associated system adjustment procedures

The evidence guide provides advice on assessment and must be read in conjunction with the Performance Criteria required Skills and Knowledge the Range Statement and the Assessment Guidelines for the Training Package

Overview of assessment

Critical aspects for assessment and evidence required to demonstrate competency in this unit

The evidence required to demonstrate competency in this unit must be relevant to workplace operations and satisfy all of the requirements of the performance criteria and required skills and knowledge

A person who demonstrates competency in this unit must be able to

observe safety procedures and requirements in particular the dangers associated with handling refrigerants

select methods and techniques appropriate to the retrofit and modification of an air conditioning system

conduct performance testing to establish viability of retrofit and modification

complete preparatory activity in a systematic manner

apply full retrofit and modify sequence in line with scope of work

accurately interpret air conditioning performance test results

conduct refrigerant recovery and evacuation of refrigerant operations according to industry codes of practice and legislation and charge the system with the appropriate refrigerant and oil type

complete a retrofit and modification of air conditioning system and associated components within workplace time frames

present vehicle and equipment in a condition that complies with workplace requirements

complete workplace and equipment documents to ARC code of practice requirements

clean up work area and maintain equipment to workplace standards

Context of and specific resources for assessment

Competency is to be assessed in the workplace or a simulated workplace environment that accurately reflects performance in a real workplace setting

Assessment is to occur

using standard workplace practices and procedures

following safety requirements

applying environmental constraints

Assessment is to comply with relevant

regulatory requirements

Australian standards

industry codes of practice

ARC code of practice

The following resources must be made available for the assessment of this unit

workplace location or simulated workplace

light and heavy vehicles with air conditioning and HVAC systems relevant to the qualification being sought

material relevant to perform a retrofit and modification of air conditioning systems

equipment appropriate for the retrofit or modification of light and heavy vehicle air conditioning and HVAC systems including

manifold and gauge set

recovery unit

vacuum pump

electronic leak detector

nitrogen cylinder and regulator

digital vacuum gauge vacrometer

digital multimeter

electronic scales

oil injector

infrared thermometer pyrometer

electronic temperature probe

valve core removingreplacement tool

psychrometer humidity detector

various refrigerant hoses and couplers

diagnostic scan tool

specifications and work instructions

service procedures for above equipment appropriate for the retrofit and modification of vehicle air conditioning and HVAC systems

Method of assessment

Assessment must satisfy the endorsed Assessment Guidelines of this Training Package

Assessment methods must confirm consistency and accuracy of performance over time and in a range of workplace relevant contexts together with the application of required skills and knowledge

Assessment methods must be by direct observation of tasks and include questioning on required skills and knowledge to ensure correct interpretation and application

Competence in this unit may be assessed in conjunction with other units which together form part of a holistic work role

Where applicable reasonable adjustment must be made to work environments and training situations to accommodate the needs of diverse clients

Assessment processes and techniques must be culturally sensitive and appropriate to the language literacy and numeracy capacity of the candidate and the work being performed

Scope of work may include:

Workplace health and safety requirements may include:

Procedures and information may include:

Retrofit options may include:

Tools and equipment:

Critical precautions may include:

Post-retrofit testing may include:

Information on decal sticker must include: