Modification History
Not Applicable
Unit Descriptor
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Unit Descriptor |
1 ) 1 .1 ) Descriptor |
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This unit covers the determination of the operating conditions of vapour compression systems. It encompasses working safely, determining refrigerant pressures and temperatures and relevant air and water temperatures using measurement and basic calculation methods. |
Application of the Unit
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Application of the Unit |
4 ) |
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This competency standard is suitable for employment-based programs under an approved contract of training at the AQF level of the qualification in which the unit is first packaged or higher. The unit may be selected as an elective from the relevant schedule (see qualification packaging rules) provided that all prerequisite units are undertaken or addressed through recognition processes. This unit may be included in a skill set provided that it is listed in the schedule of electives (see Qualification Framework) and all prerequisite units are undertaken or addressed through recognition processes. Delivery and assessment of this unit should be undertaken within regard to the requirements of License to Practice (1.2 above), Prerequisite Competencies and Literacy and Numeracy skills (2 above) and the recommendations for concurrent assessment and relationship with other units (9.5 below). Practice in the workplace and during training is also subject to regulations directly related to occupational health and safety and where applicable contracts of training such as apprenticeships. Note: 1. Compliance with permits may be required in various jurisdictions and typically relates to the operation of plant, machinery and equipment such as elevating work platforms, powder operated fixing tools, power operated tools, vehicles, road signage and traffic control and lifting equipment. Permits may also be required for some work environments such as confined spaces, working aloft, near live electrical apparatus and site rehabilitation. 2. Compliance may be required in various jurisdictions relating to currency in First Aid, confined space, lifting, risk safety measures etc. |
Licensing/Regulatory Information
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1 .2 ) License to practice |
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The skills and knowledge described in this unit may, in some jurisdictions, require a license to practice in the workplace subject to regulations for undertaking refrigeration and air conditioning work. Practice in workplace and during training is also subject to regulations directly related to occupational health and safety and where applicable contracts of training such as apprenticeships. Note: 1. Compliance with permits may be required in various jurisdictions and typically relates to the operation of plant, machinery and equipment such as elevating work platforms, powder operated fixing tools, power operated tools, vehicles, road signage and traffic control, lifting equipment. Permits may also be required for some work environments such as confined spaces, working aloft, near live electrical apparatus and site rehabilitation. 2. Compliance may be required in various jurisdictions relating to currency in First Aid, confined space, lifting and risk safety measures. |
Pre-Requisites
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Prerequisite Unit (s ) |
2 ) |
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2 .1 ) Competencies |
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Granting competency in this unit shall be made only after competency in the following unit(s) has/have been confirmed. |
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UEENEEE101A |
Apply Occupational Health and Safety regulations, codes and practices in the workplace |
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Employability Skills Information
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Employability Skills |
3 ) This unit contains Employability Skills The required outcomes described in this unit of competency contain applicable facets of Employability Skills. The Employability Skills Summary of the qualification in which this unit of competency is packaged will assist in identifying Employability Skill requirements. |
Elements and Performance Criteria Pre-Content
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6 ) Elements describe the essential outcomes of a unit |
Performance criteria describe the required performance needed to demonstrate achievement of the element. Assessment of performance is to be consistent with the evidence guide. |
Elements and Performance Criteria
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ELEMENT |
PERFORMANCE CRITERIA |
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1 |
Prepare to determine the basic operating conditions of vapour compression systems |
1.1 |
OHS procedures for a given work area are identified, obtained and understood through established routines and procedures |
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1.2 |
Established OHS risk control measures and procedures are followed in preparation for the work |
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1.3 |
Safety hazards which have not previously been identified are reported and advice on risk control measures is sought from the work supervisor |
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1.4 |
Expected operating conditions are obtained from documentation or from work supervisor to establish the scope of work to be undertaken |
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1.5 |
Advice is sought from the work supervisor to ensure the work is coordinated effectively with others |
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1.6 |
Sources of materials that may be required for the work are identified and accessed in accordance with established routines and procedures |
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1.7 |
Tools, equipment and testing devices needed to determine the basic operating conditions are obtained and checked for correct operation and safety |
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2 |
Determine the basic operating conditions of vapour compression systems |
2.1 |
Established OHS risk control measures and procedures for carrying out the work are followed |
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2.2 |
Measuring system operating parameters is conducted in strict accordance with OHS requirements and established safety procedures |
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2.3 |
System is checked and isolated where necessary, in strict accordance OHS requirements and procedures |
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2.4 |
Established procedures are used to determine actual and specified range of operating conditions from measured and calculated values as they apply to particular vapour compression systems. |
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2.5 |
Established methods for dealing with unexpected situations are discussed with appropriate person or persons and documented. |
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2.6 |
Unexpected situations are dealt with safely and with the approval of an authorised person |
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2.7 |
Operating conditions are determined without damage to apparatus, circuits, the surrounding environment or services and using sustainable energy practices |
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3 |
Complete work and report |
3.1 |
OHS work completion risk control measures and procedures are followed |
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3.2 |
Work site and equipment is cleaned and made safe in accordance with established procedures |
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3.3 |
Operation conditions are documented, including identification of any parameter that is not within the specified range for the system |
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3.4 |
Work supervisor is notified of the completion of the work in accordance with established procedures |
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Required Skills and Knowledge
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REQUIRED SKILLS AND KNOWLEDGE |
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7) This describes the essential skills and knowledge and their level, required for this unit. |
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Evidence shall show that knowledge has been acquired of safe working practices and determining the basic operating conditions of vapour compression systems. All knowledge and skills detailed in this unit should be contextualised to current industry practices and technologies. KS01-EJ103A Basic operating conditions of vapour compression systems Evidence shall show an understanding of basic operating conditions of vapour compression systems, applying safe working practices and relevant Standards, Codes and Regulations to an extent indicated by the following aspects: T1 Refrigeration Industry
T2 Introduction to the Vapour Compression System
T3 Heat
T4 Temperature and relative humidity
T5 Sensible and Latent Heat
T6 Pressure
T7 Refrigerant conditions
T8 The vapour compression cycle
T9 Working safely with refrigeration vapour compression systems
T10 Leak detectors
T11 Service gauges
T12 Refrigeration Compressors
T13 Condensers and related components
T14 Evaporators and related components
T15 Common Refrigerant Metering Devices
T16 Basic Operating Conditions
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Evidence Guide
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EVIDENCE GUIDE |
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9 ) 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 this Training Package. . The Evidence Guide forms an integral part of this Unit. It must be used in conjunction with all parts of this unit and performed in accordance with the Assessment Guidelines of this Training Package. |
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Overview of Assessment |
9 .1 ) Longitudinal competency development approaches to assessment, such as Profiling, require data to be reliably gathered in a form that can be consistently interpreted over time. This approach is best utilised in Apprenticeship programs and reduces assessment intervention. It is the industry-preferred model for apprenticeships. However, where summative (or final) assessment is used it is to include the application of the competency in the normal work environment or, at a minimum, the application of the competency in a realistically simulated work environment. In some circumstances, assessment in part or full can occur outside the workplace. However, it must be in accordance with industry and regulatory policy. Methods chosen for a particular assessment will be influenced by various factors. These include the extent of the assessment, the most effective locations for the assessment activities to take place, access to physical resources, additional safety measures that may be required and the critical nature of the competencies being assessed. The critical safety nature of working with electricity, electrical equipment, gas or any other hazardous substance/material carries risk in deeming a person competent. Sources of evidence need to be 'rich' in nature to minimise error in judgment. Activities associated with normal everyday work influence decisions about how/how much the data gathered will contribute to its 'richness'. Some skills are more critical to safety and operational requirements while the same skills may be more or less frequently practised. These points are raised for the assessors to consider when choosing an assessment method and developing assessment instruments. Sample assessment instruments are included for Assessors in the Assessment Guidelines of this Training Package. |
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Critical aspects of evidence required to demonstrate competency in this unit |
9 .2 ) Before the critical aspects of evidence are considered all prerequisites must be met. |
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Evidence for competence in this unit shall be considered holistically. Each Element and associated performance criteria shall be demonstrated on at least two occasions in accordance with the 'Assessment Guidelines - UEE07'. Evidence shall also comprise:
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A |
Selecting and using appropriate measuring devices correctly |
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B |
Recording measurements |
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C |
Using calculation methods accurately |
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D |
Identifying the conditions of a refrigerant at various locations in the vapour compression system |
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E |
Documenting operating conditions correctly |
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F |
Dealing with unplanned events by drawing on essential knowledge and skills to provide appropriate solutions incorporated in the holistic assessment with the above listed items |
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Context of and specific resources for assessment |
9 .3 ) This unit should be assessed as it relates to normal work practice using procedures, information and resources typical of a workplace. This should include:
These should be part of the formal learning/assessment environment. Note: Where simulation is considered a suitable strategy for assessment, conditions must be authentic and as far as possible reproduce and replicate the workplace and be consistent with the approved industry simulation policy. |
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Evidence should show demonstrated competency in determining the basic operating conditions of vapour compression systems. |
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Method of assessment |
9 .4 ) This unit shall be assessed by methods given in Volume 1, Part 3 'Assessment Guidelines'. Note: Competent performance with inherent safe working practices is expected in the Industry to which this unit applies. This requires assessment in a structured environment which is intended primarily for learning/assessment and incorporates all necessary equipment and facilities for learners to develop and demonstrate the essential knowledge and skills described in this unit. |
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Concurrent assessment and relationship with other units |
9 .5 ) |
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There are no concurrent assessment recommendations for this unit. |
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Range Statement
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RANGE STATEMENT |
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8 ) This relates to the unit as a whole providing the range of contexts and conditions to which the performance criteria apply. It allows for different work environments and situations that will affect performance. |
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This unit must be demonstrated in relation to determining operating conditions using measurement and basic calculation methods of vapour compression systems whether used for refrigeration or air conditioning. These conditions include suction and discharge pressures, ambient, evaporator and condensing temperatures, evaporator, and condenser temperature difference. |
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Generic terms used throughout this Vocational Standard shall be regarded as part of the Range Statement in which competency is demonstrated. The definition of these and other terms that apply are given in Volume 2, Part 2.1. |
Unit Sector(s)
Not Applicable
Competency Field
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2 .2 ) Literacy and numeracy skills Participants are best equipped to achieve competency in this unit if they have reading, writing and numeracy skills indicated by the following scales. Description of each scale is given in Volume 2, Part 3 'Literacy and Numeracy' |
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Reading |
3 |
Writing |
3 |
Numeracy |
3 |
Custom Content Section
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Competency Field |
5 ) |
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Refrigeration and Air Conditioning |
