Assessor Resource

UEERA0064
Recover, pressure test, evacuate, charge and leak test refrigerants - split systems

Assessment tool

Version 1.0
Issue Date: May 2024


This unit involves the skills and knowledge required to undertake the recovery of refrigerants, perform pressure and leak testing, evacuations and refrigerant charging in split air conditioning and heat pump systems.

It includes working safely; applying relevant regulations, industry standards and codes of practice in recovering refrigerants; performing pressure and leak tests; evacuating and charging with refrigerant split systems; and completing all required documentation.

To undertake this unit, the learner must have a Trainee Refrigerant Handling Licence as it includes work on refrigeration and air conditioning equipment that carries the risk of a fluorocarbon refrigerant being emitted.

The skills and knowledge described in this unit require a national Refrigerant Handling Licence as it includes work on refrigeration and air conditioning equipment that carries the risk of a fluorocarbon refrigerant being emitted while decanting the refrigerant or manufacturing, installing, commissioning, servicing, maintaining or decommissioning refrigeration and air conditioning equipment.

The skills and knowledge described in this unit may, in some jurisdictions, also require a licence or permit to practice in the workplace subject to regulations for undertaking refrigeration and air conditioning work. Practice in the workplace and during training is also subject to work health and safety (WHS)/occupational health and safety (OHS) regulations.

You may want to include more information here about the target group and the purpose of the assessments (eg formative, summative, recognition)


Evidence Required

List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements, performance criteria and range of conditions on at least two separate occasions and include:

applying relevant work health and safety (WHS)/occupational health and safety (OHS) requirements, including:

identifying hazards

risk control measures

using personal protective equipment (PPE)

applying safe working practices and relevant legislation, industry standards, codes of practice and regulations

completing required documentation, including reporting refrigerant recovery, pressure and leak tests, evacuations, charging refrigerant work and system operating conditions determining basic operating conditions, including:

ambient, evaporation and condensing temperatures

evaporator and condenser temperature differences

suction and discharge pressures

recovering, pressure testing, evacuating, charging and leak testing refrigerant in newly installed split systems to requirements using appropriate equipment, tools and measurement devices

starting up system and performing function checks

selecting, obtaining and checking relevant equipment, materials, tools and testing devices required to carry out the work, including:

A1, A2 and A2L class refrigerants, lubricants and charging equipment

oxygen-free dry nitrogen cylinder and regulator

pressure and temperature measurement devices

pressure testing and refrigerant leak testing equipment and tools

refrigeration evacuation equipment and measuring equipment suitable for A1, A2 and A2L class refrigerants

refrigerant recovery/reclaim equipment suitable for A1, A2 and A2L class refrigerants

refrigeration hand and power tools

refrigeration service tools

single head split air conditioning systems

using lubricants and cleaning materials safely in accordance with safety data sheets (SDS)/material safety data sheets (MSDS).

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements, performance criteria and range of conditions and include knowledge of:

equipment and procedures for working with refrigerants, including:

charging refrigerant into a newly installed split system detecting refrigerant leaks (electronic, bubbles and halide for R22)

contaminant detection and removal

evacuating newly installed split systems

pressure testing systems newly installed split systems using dry nitrogen

reclaiming/recovering refrigerants using recovery units and recovery cylinders

heat and heat transfer

leak detectors types, applications, operation and procedures

manifold gauges types, applications, operation and procedures

pressure temperature relationships and charts

pressure, units and measurement

refrigerant conditions, including saturation, superheat and sub-cooling

relative humidity, unit and measurement

relevant industry standards, codes of practice and regulations, including WHS/OHS legislated requirements

relevant manufacturer specifications

relevant risk mitigation processes, including risk control measures

safe working practices, safe handling and SDS/MSDS

sensible and latent heat

split heat pump Class A1, A2 and A2L refrigerant types, properties and applications

split heat pump refrigerant oil types, properties and applications

sustainable energy principles and practices, including:

environment protection requirements

sustainable energy practices

sustainable resources

system access fittings types, applications, operation and procedures

temperature, units and measurement

vapour compression cycle, basic operation and major system components.

Assessors must hold credentials specified within the Standards for Registered Training Organisations current at the time of assessment.

Assessment must satisfy the Principles of Assessment and Rules of Evidence and all regulatory requirements included within the Standards for Registered Training Organisations current at the time of assessment.

Assessment must occur in workplace operational situations where it is appropriate to do so; where this is not appropriate, assessment must occur in simulated workplace operational situations that replicate workplace conditions.

Assessment processes and techniques must be appropriate to the language, literacy and numeracy requirements of the work being performed and the needs of the candidate.

Resources for assessment must include access to:

a range of relevant exercises, case studies and/or other simulations

relevant and appropriate materials, tools, equipment and PPE currently used in industry

applicable documentation, including workplace procedures, industry standards, equipment specifications, regulations, codes of practice and operation manuals.

Submission Requirements

List each assessment task's title, type (eg project, observation/demonstration, essay, assingnment, checklist) and due date here

Assessment task 1: [title]      Due date:

(add new lines for each of the assessment tasks)

Assessment Tasks

Copy and paste from the following data to produce each assessment task. Write these in plain English and spell out how, when and where the task is to be carried out, under what conditions, and what resources are needed. Include guidelines about how well the candidate has to perform a task for it to be judged satisfactory.

Range is restricted to essential operating conditions and any other variables essential to the work environment.

Non-essential conditions may be found in the UEE Electrotechnology Training Package Companion Volume Implementation Guide.

testing and charging split air conditioning systems must include at least the following:

determining, using measurement and basic calculations methods, the operating conditions of vapour compression split system, including suction and discharge pressures

ambient, evaporator and condensing temperatures

evaporator and condenser temperature differences recovering Class A1 and A2L refrigerant from an existing split system, including split single head air conditioning and/or hot water heat pump systems pressure and leak testing a newly installed system

evacuating newly installed systems in preparation for charging with refrigerant

charging newly installed systems with Class A1 and A2L refrigerant

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements, performance criteria and range of conditions on at least two separate occasions and include:

applying relevant work health and safety (WHS)/occupational health and safety (OHS) requirements, including:

identifying hazards

risk control measures

using personal protective equipment (PPE)

applying safe working practices and relevant legislation, industry standards, codes of practice and regulations

completing required documentation, including reporting refrigerant recovery, pressure and leak tests, evacuations, charging refrigerant work and system operating conditions determining basic operating conditions, including:

ambient, evaporation and condensing temperatures

evaporator and condenser temperature differences

suction and discharge pressures

recovering, pressure testing, evacuating, charging and leak testing refrigerant in newly installed split systems to requirements using appropriate equipment, tools and measurement devices

starting up system and performing function checks

selecting, obtaining and checking relevant equipment, materials, tools and testing devices required to carry out the work, including:

A1, A2 and A2L class refrigerants, lubricants and charging equipment

oxygen-free dry nitrogen cylinder and regulator

pressure and temperature measurement devices

pressure testing and refrigerant leak testing equipment and tools

refrigeration evacuation equipment and measuring equipment suitable for A1, A2 and A2L class refrigerants

refrigerant recovery/reclaim equipment suitable for A1, A2 and A2L class refrigerants

refrigeration hand and power tools

refrigeration service tools

single head split air conditioning systems

using lubricants and cleaning materials safely in accordance with safety data sheets (SDS)/material safety data sheets (MSDS).

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements, performance criteria and range of conditions and include knowledge of:

equipment and procedures for working with refrigerants, including:

charging refrigerant into a newly installed split system detecting refrigerant leaks (electronic, bubbles and halide for R22)

contaminant detection and removal

evacuating newly installed split systems

pressure testing systems newly installed split systems using dry nitrogen

reclaiming/recovering refrigerants using recovery units and recovery cylinders

heat and heat transfer

leak detectors types, applications, operation and procedures

manifold gauges types, applications, operation and procedures

pressure temperature relationships and charts

pressure, units and measurement

refrigerant conditions, including saturation, superheat and sub-cooling

relative humidity, unit and measurement

relevant industry standards, codes of practice and regulations, including WHS/OHS legislated requirements

relevant manufacturer specifications

relevant risk mitigation processes, including risk control measures

safe working practices, safe handling and SDS/MSDS

sensible and latent heat

split heat pump Class A1, A2 and A2L refrigerant types, properties and applications

split heat pump refrigerant oil types, properties and applications

sustainable energy principles and practices, including:

environment protection requirements

sustainable energy practices

sustainable resources

system access fittings types, applications, operation and procedures

temperature, units and measurement

vapour compression cycle, basic operation and major system components.

Assessors must hold credentials specified within the Standards for Registered Training Organisations current at the time of assessment.

Assessment must satisfy the Principles of Assessment and Rules of Evidence and all regulatory requirements included within the Standards for Registered Training Organisations current at the time of assessment.

Assessment must occur in workplace operational situations where it is appropriate to do so; where this is not appropriate, assessment must occur in simulated workplace operational situations that replicate workplace conditions.

Assessment processes and techniques must be appropriate to the language, literacy and numeracy requirements of the work being performed and the needs of the candidate.

Resources for assessment must include access to:

a range of relevant exercises, case studies and/or other simulations

relevant and appropriate materials, tools, equipment and PPE currently used in industry

applicable documentation, including workplace procedures, industry standards, equipment specifications, regulations, codes of practice and operation manuals.

Copy and paste from the following performance criteria to create an observation checklist for each task. When you have finished writing your assessment tool every one of these must have been addressed, preferably several times in a variety of contexts. To ensure this occurs download the assessment matrix for the unit; enter each assessment task as a column header and place check marks against each performance criteria that task addresses.

Observation Checklist

Tasks to be observed according to workplace/college/TAFE policy and procedures, relevant legislation and Codes of Practice Yes No Comments/feedback
WHS/OHS hazards, risk control methods, relevant standards, codes and legislation are obtained and applied in accordance with workplace procedures 
 
 
 
 
 
 
 
Checks are carried out to ensure the system and/or component parts are isolated in accordance with workplace procedures 
 
 
 
 
 
 
 
 
 
 
 
Worksite is cleaned and made safe in accordance with workplace procedures 
 
 

Forms

Assessment Cover Sheet

UEERA0064 - Recover, pressure test, evacuate, charge and leak test refrigerants - split systems
Assessment task 1: [title]

Student name:

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I declare that the assessment tasks submitted for this unit are my own work.

Student signature:

Result: Competent Not yet competent

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Assessment Record Sheet

UEERA0064 - Recover, pressure test, evacuate, charge and leak test refrigerants - split systems

Student name:

Student ID:

Assessment task 1: [title] Result: Competent Not yet competent

(add lines for each task)

Feedback to student:

 

 

 

 

 

 

 

 

Overall assessment result: Competent Not yet competent

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Student signature:

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