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

applying OHS practices in relation to hydrocarbon refrigerants

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

KSEJA

Safe working practices with carbon dioxide refrigerant

Evidence shall show an understanding of safe working practices with carbon dioxide refrigerant and relevant Standards Codes and Regulations an extent indicated by the following aspects

T Introduction to Carbon Dioxide refrigerant

Refrigerants and CFCHFC phase out

Introduction to Carbon Dioxide CO

Benefits of using Carbon Dioxide as a Refrigerant R

T Introduction to HAZCHEM Codes and Material Safety Data Sheets MSDS

Classification of Dangerous Goods

HAZCHEM CODE

Refrigerant RE Hazchem Codes

UN United Nations Number

Material Safety Data Sheets MSDS

Personal Protection Equipment PPE

T Carbon Dioxide Plant Safety

Carbon Dioxide CO R Detectors

Appropriate Type

Care Maintenance and Installation

Cylinder Regulators CO

All currently available regulators provide vapour feed only

Pressure readings bottle and line

Refrigerant Cylinders CO

Refrigerant conditions

Hazards and related safe working practices dangerous system pressures

Pressure to temperature conversion Saturated PT is only between kPa and kPa

Carbon Dioxide Relief Valves AS

T Emergency Management

Planning for emergencies

The emergency plan

Risk Assessment

T First Aid for CO Exposure

Type of exposure

Acute

Chronic

Swallowed

Eye

Skin

Inhaled

Carbon Dioxide CO R is a narcotic and an asphyxiant in large concentrations in air Concentrations above in air may lead to death very quickly

First Aid Facilities

Ensure plenty of drinking water

Safety shower

Eye wash station eye wash bottle available

Oxygen for resuscitation

Always seek urgent medical attention when an incident occurs with Carbon Dioxide CO R refrigerant

DRABC steps or procedures that must be carried out if a first aid person or emergency personnel come across a person who is unconscious

SCBA Self contained breathing apparatus Compressed air comes in bottles strapped to the users body Note all personnel who may be required to use SCBA type equipment require specialised training

T Applicable Standards and Codes

Hazards associated with Carbon Dioxide MSDS

AS

New South Wales OHampS Act No

Storage and handling of workplace Dangerous Goods National Code of Practice NOHSC

Dangerous Goods Act

AS The storage and handling of flammable and combustible liquids

ASNZS

ASNZS

IIAR Bulletins

ANSIASHRAE Standards

IOR Safety code for Refrigerating Systems utilising Carbon Dioxide

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

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 Industrys 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 It is recognised that 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 substancematerial 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 every day work have a bearing on the decision as to how much and how detailed 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

Before the critical aspects of evidence are considered all prerequisites shall 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 UEE Evidence shall also comprise

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

A

Preparing to enter the workplace including the use of work permits and clearances and isolation permissions

B

Applying work procedures and instructions as they apply to risk control measures

C

Dealing with accidents and emergencies within the scope of responsibility

D

Participation in consultation processes identifying hazards and implementing and monitoring control measures

E

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

Context of and specific resources for assessment

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 learningassessment 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

In addition to the resources listed above evidence should show demonstrated competency in applying specific hydrocarbon OHS practices in the workplace

Method of assessment

This unit shall be assessed by methods given in Volume Part 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 primarily intended for learningassessment 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

This unit shall be assessed concurrently as it relates to other units undertaken in a possible skill clusters or qualification

Components of this unit are included in the critical aspects of evidence of all units to help ensure the appropriate level of responsibility for safety has been acquired