The important thing to remember when gathering evidence is that the more evidence the better - that is, the more evidence you gather to demonstrate your skills, the more confident an assessor can be that you have learned the skills not just at one point in time, but are continuing to apply and develop those skills (as opposed to just learning for the test!). Furthermore, one piece of evidence that you collect will not usualy demonstrate all the required criteria for a unit of competency, whereas multiple overlapping pieces of evidence will usually do the trick!
From the Wiki University
What evidence can you provide to prove your understanding of each of the following citeria?
Prepare to recover refrigerants, pressure and leak test, evacuate and charge refrigeration appliance
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WHS/OHS hazards, risk control methods, relevant standards, codes and legislation are obtained and applied in accordance with workplace procedures Completed |
Evidence:
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Safety hazards which have not previously been identified are noted and risk control measures implemented in accordance with workplace procedures |
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Completed |
Evidence:
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Extent of work to be completed is determined from documentation and/or discussion with supervisor/appropriate person/s in accordance with workplace procedures |
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Completed |
Evidence:
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Work is sequenced in accordance with job schedule and workplace procedures |
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Completed |
Evidence:
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Appropriate person/s is consulted, as required, to ensure work is coordinated with others |
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Completed |
Evidence:
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Refrigerants, lubricants and cleaning materials are obtained in accordance with workplace procedures |
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Completed |
Evidence:
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Tools, equipment and testing devices are obtained in accordance with workplace procedures and checked for operational safety |
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Completed |
Evidence:
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Recover refrigerants, pressure and leak test, evacuate and charge refrigeration appliance
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Checks are carried out to ensure system or component parts are isolated, when necessary, in accordance with workplace procedures and WHS/OHS requirements Completed |
Evidence:
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Circuits, machines and plant are checked as being isolated, where necessary, in accordance with workplace procedures and WHS/OHS requirements |
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Completed |
Evidence:
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Refrigerant is removed from appliance safely and is placed into labelled containers in accordance with workplace procedures and regulatory requirements |
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Completed |
Evidence:
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Precautions are taken in accordance with workplace procedures to prevent damage to components while pressure testing appliance |
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Completed |
Evidence:
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Pressure testing is conducted in accordance with workplace procedures using dry nitrogen at a pressure relative to refrigerant used |
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Completed |
Evidence:
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Leaks are located and rectified using testing methods appropriate to the appliance under test in accordance with workplace procedures |
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Completed |
Evidence:
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Appliance is evacuated to required level and is cleaned of all moisture and other contaminates in accordance with workplace procedures |
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Completed |
Evidence:
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A 'drop test' is used to test effectiveness of evacuation in accordance with workplace procedures using an appropriate electronic vacuum gauge |
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Completed |
Evidence:
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Components and lubricants are checked and maintained in accordance with workplace procedures and manufacturer specifications |
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Completed |
Evidence:
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Appliance is charged with appropriate refrigerant in accordance with workplace procedures and manufacturer specifications |
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Completed |
Evidence:
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Problematic situations are resolved in accordance with workplace procedures and are referred to a supervisor |
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Completed |
Evidence:
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Appliance is pressure and leak tested, evacuated and charged without waste of materials or damage to apparatus, the surrounding environment and/or services using relevant sustainable energy practices in accordance with workplace procedures |
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Completed |
Evidence:
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Complete and report on refrigerants recovery pressure and leak test and evacuate and charge work
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Worksite and equipment are cleaned and made safe in accordance with workplace procedures Completed |
Evidence:
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Contaminated refrigerant is dealt with in accordance with workplace procedures and legislative/regulatory requirements |
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Completed |
Evidence:
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Completion of work is documented and an appropriate person/supervisor is notified in accordance with workplace procedures |
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Completed |
Evidence:
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