Demonstrate knowledge of servicing automotive air conditioning systems

Transcription

1 Demonstrate knowledge of servicing automotive air conditioning systems version 1 Page 1 of 5 Level 3 Credits 2 Purpose This theory-based unit standard is for people in the automotive repair industry. People credited with this unit standard are able to demonstrate knowledge of: recovering refrigerant and compressor oil from an automotive air conditioning system; flushing an automotive air conditioning system; evacuating an automotive air conditioning system; charging an automotive air conditioning system; and testing an automotive air conditioning system for leaks. Subfield Domain Status Motor Industry Automotive Heating, Ventilation, and Air Conditioning Registered Status date 25 January 2008 Date version published 25 January 2008 Planned review date 31 December 2012 Entry information Accreditation Standard setting body (SSB) Recommended: Unit 15373, Demonstrate knowledge of automotive air conditioning; and Unit 19666, Demonstrate knowledge of ozone and how it relates to the refrigeration and air conditioning industry; or demonstrate equivalent knowledge and skills. Evaluation of documentation and visit by NZQA and industry. NZ Motor Industry Training Organisation (Incorporated) Accreditation and Moderation Action Plan (AMAP) reference 0014 This AMAP can be accessed at Special notes 1 Legislation and publications relevant to this unit standard include but are not limited to Health and Safety in Employment Act 1992; Ozone Layer Protection Act 1996; Resource Management Act 1991, s15 Discharge of contaminants into environment; Motor Trade Association (MTA) Automotive Air Conditioning Code of Practice.

2 Page 2 of 5 2 MTA Automotive Air Conditioning Code of Practice is available from the Motor Trade Association, PO Box 9244, Wellington, phone , website 3 Definition Company requirements refer to instructions to staff on policy and procedures which are documented in memo or manual format and are available in the workplace. These requirements include but are not limited to company specifications and procedures, work instructions, manufacturer specifications, product quality specifications, and legislative requirements. Suitable tools and equipment means industry approved tools and equipment that are recognised within the industry as being the most suited to complete the task in a professional and competent manner with due regard to safe working practices. Elements and performance criteria Element 1 Demonstrate knowledge of recovering refrigerant and compressor oil from an automotive air conditioning system. 1.1 Safe working practices when recovering refrigerant are described in accordance 1.2 Suitable tools and equipment to enable oil to be recovered are described in accordance may include but is not limited to operation manual, refrigerant recovery system, refrigerant identifier, oil, electronic scales. 1.3 Procedures for connecting the recovery system to the air conditioning system and recovering the refrigerant from the system are described in accordance with recovery equipment instructions. 1.4 The procedures for disposing of the oil are described in accordance with legislative requirements.

3 Page 3 of 5 Element 2 Demonstrate knowledge of flushing an automotive air conditioning system. 2.1 Safe working practices when flushing the system are described in accordance 2.2 Suitable tools and equipment to enable the system to be flushed are described in accordance may include but is not limited to operation manual, power flushing machine, flush gun kit, flushing agent. 2.3 The procedure to flush the system is described in accordance with flushing equipment instructions. complete system, replacement of contaminated components. Element 3 Demonstrate knowledge of evacuating an automotive air conditioning system. 3.1 Safe working practices when evacuating the system are described in accordance 3.2 Suitable tools and equipment to enable the system to be evacuated are described in accordance includes but is not limited to operation manual, vacuum pump or combination recovery system, service manifold.

4 Page 4 of The procedure to evacuate the system is described in accordance with recovery or evacuation equipment instructions and legislative requirements. Element 4 Demonstrate knowledge of charging an automotive air conditioning system. 4.1 Safe working practices when charging the system are described in accordance 4.2 Suitable tools and equipment to enable the system to be charged and commissioned are described in accordance includes but is not limited to operation manual, service manifold, charging system, electronic scales, thermometer, oil, electronic leak detector. 4.3 The procedure to charge the system to the specified level with refrigerant and compressor oil is described in accordance with charging equipment instructions and legislative requirements. Element 5 Demonstrate knowledge of testing an automotive air conditioning system for leaks. 5.1 Safe working practices when testing the system for leaks are described in accordance

5 Page 5 of Suitable tools and equipment to enable the system to be tested for leaks are described in accordance includes but is not limited to electronic leak detector, ultra-violet (UV) leak detection dye, refrigerant identifier, test gas. 5.3 Procedures to test the system for leaks are described in accordance with company requirements or leak detection equipment instructions. includes but is not limited to electronic leak detection, UV leak detection dye, nitrogen and soapy water. Please note Providers must be accredited by NZQA, or an inter-institutional body with delegated authority for quality assurance, before they can report credits from assessment against unit standards or deliver courses of study leading to that assessment. Industry Training Organisations must be accredited by NZQA before they can register credits from assessment against unit standards. Accredited providers and Industry Training Organisations assessing against unit standards must engage with the moderation system that applies to those standards. Accreditation requirements and an outline of the moderation system that applies to this standard are outlined in the Accreditation and Moderation Action Plan (AMAP). The AMAP also includes useful information about special requirements for organisations wishing to develop education and training programmes, such as minimum qualifications for tutors and assessors, and special resource requirements. Comments on this unit standard Please contact the NZ Motor Industry Training Organisation (Incorporated) info@mito.org.nz if you wish to suggest changes to the content of this unit standard.