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.

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.

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.

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:

A representative body of work performance demonstrated within the timeframes typically expected of the discipline, work function and industrial environment. In particular this shall incorporate evidence that shows a candidate is able to:

Implement Occupational Health and Safety workplace procedures and practices including the use of risk control measures as specified in the performance criteria and range statement

Apply sustainable energy principles and practices as specified in the performance criteria and range statement

Demonstrate an understanding of the essential knowledge and associated skills as described in this unit. It may be required by some jurisdictions that RTOs provide a percentile graded result for the purpose of regulatory or licensing requirements.

Demonstrate an appropriate level of skills enabling employment

Conduct work observing the relevant Anti Discrimination legislation, regulations, polices and workplace procedures

Demonstrated consistent performance across a representative range of contexts from the prescribed items below:

Install refrigerant pipe work, flow controls and accessories for refrigeration and air conditioning systems as described in 8) and including:

A

Reading and interpreting drawings related to pipe work layouts and apparatus locations

B

Routing, placing and securing pipe work to comply with requirements

C

Placing and securing flow controls and accessories accurately

D

Connecting pipe work, flow controls and accessories to comply with requirements

E

Cleaning pipe work of contaminants

F

Ensuring pipe work, flow controls and accessories will not leak under pressure

G

Checking operation, adjusting settings and replacement of flow controls

H

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

Note:
Successful completion of relevant vendor training may be used to contribute to evidence on which competency is deemed. In these cases the alignment of outcomes of vendor training with performance criteria and critical aspects of evidence shall be clearly identified.

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:

OHS policy and work procedures and instructions.

Suitable work environment, facilities, equipment and materials to undertake actual work as prescribed by this unit.

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.

Evidence should show demonstrated competency in installing pipe work for refrigeration and air conditioning systems.

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.

Concurrent assessment and relationship with other units

9.5)

For optimisation of training and assessment effort, competency development in this unit may be arranged concurrently with unit:

UEENEEJ107A

Install refrigeration and air conditioning systems, major components and associated equipment

7) This describes the essential skills and knowledge and their level, required for this unit.

Evidence shall show that knowledge has been acquired of safe working practices and installing pipe work for refrigeration and air conditioning systems.

All knowledge and skills detailed in this unit should be contextualised to current industry practices and technologies.

KS01-EJ106A Refrigerant pipework, flow controls and accessories

Evidence shall show an understanding of refrigerant pipework, flow controls and accessories, applying safe working practices and relevant Standards, Codes and Regulations to an extent indicated by the following aspects:

T1 Environmental and building regulation

types of heritage listings

purpose and principles of regulations related maintaining heritage sites

responsibilities of those working in and around heritage sites

scope of environmental protection and related regulations

purpose and principles of regulations related to environmental protection

responsibilities of those working in and around environmentally protected sites

the protocols for working in and around protected environments and heritage sites.

T2 Refrigeration pipework

appropriate piping arrangements for refrigerant lines including discharge lines, liquid lines, suction lines

position of equipment in relation pipework

requirements for vertical and horizontal pipe runs.

requirements for oil return and prevention of flood back

techniques for the prevention of noise and vibration

insulation requirements and materials

pipework insulation requirements, including relevant technical standards, regulations and codes

pipe work installation techniques

insulation requirements and materials

T3 Refrigerant pipework accessories

types

including pipe work fittings, hand valves, isolation valves, solenoid valves, check valves, reversing valves, filter/dryers, sight glasses, accumulators, oil separators, pressure relief devices

applications

operation

location and installation

testing

replacement

T4 Refrigerant liquid flow controls and distributors

types

including capillary, hand expansion valve, thermostatic expansion valve, thermo-electric expansion valve, electronic expansion valve, low side floats, high side floats, liquid level controllers

applications

operation

location and installation

testing and adjusting settings

replacement

T5 Refrigerant vapour flow controls

types

including evaporator pressure regulators, crankcase pressure regulators, condenser bypass valves, electronic valves/controllers

applications

operation

location and installation

testing and adjusting settings

replacement

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.

This unit must be demonstrated in relation to the installation of pipe work,flow controls and accessories for at least two different types of refrigeration and/or air conditioning systems.

The pipe work shall include suction lines, liquid lines, discharge lines andcontrol lines.. Accessories shall include pipe work fittings, hand valves, isolation valves, solenoid valves, check valves, reversing valves, filter/dryers, sight glasses, accumulators, oil separators. Flow controls shall include both liquid and vapour flow controls, mechanical and electronic.

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.