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 refrigerant, pressure and leak test, evacuate and charge split systems
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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 not previously identified are assessed, reported and advice on risk control measures sought from supervisor |
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Completed |
Evidence:
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Nature of the work is obtained from documentation or supervisor to determine the scope of work to be undertaken |
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Completed |
Evidence:
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Work activity is appropriately sequenced in accordance with job schedule |
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Completed |
Evidence:
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Relevant person/s is consulted to ensure work is coordinated effectively with others involved on the worksite |
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Completed |
Evidence:
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Refrigerant, lubricants and cleaning materials for work are obtained in accordance with workplace procedures and checked against job/task requirements |
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Completed |
Evidence:
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Tools, equipment and testing devices needed to carry out the work are obtained and checked for correct operation and safety |
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Completed |
Evidence:
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Preparatory work is inspected and checked to ensure no damage has occurred and complies with workplace procedures and job/task requirements |
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Completed |
Evidence:
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Recover refrigerant, pressure and leak test evacuate and charge split systems
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Checks are carried out to ensure the system and/or component parts are isolated in accordance with workplace procedures Completed |
Evidence:
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Machines, plant and circuits are isolated in accordance with workplace procedures |
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Completed |
Evidence:
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Refrigerants are safely removed from split system and placed into labelled containers in accordance with regulatory requirements, industry standards and codes of practice, and any electrical work is referred to a licensed electrician in accordance with workplace procedures. |
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Completed |
Evidence:
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Precautions are taken to prevent damage to components while pressure testing the system |
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Completed |
Evidence:
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Pressure testing is conducted using dry nitrogen at a pressure relative to the refrigerant to be used |
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Completed |
Evidence:
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Leaks are located and rectified using testing methods appropriate to system under test in accordance with industry standards |
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Completed |
Evidence:
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Split system is evacuated to required level and system is cleaned of all moisture and other containments in accordance with industry standards and codes of practice |
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Completed |
Evidence:
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A drop test is performed to test evacuation using an electronic vacuum gauge in accordance with industry standards and codes of practice |
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Completed |
Evidence:
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Component lubricants are checked and maintained in accordance with manufacturer specifications |
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Completed |
Evidence:
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Split systems are charged with refrigerant in accordance with manufacturer specifications, industry standards and codes of practice |
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Completed |
Evidence:
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Problematic situations are resolved in accordance with workplace procedures and reported to supervisor |
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Completed |
Evidence:
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Split systems are pressure and leak tested, evacuated and charged without waste of materials or damage to apparatus, the surrounding environment or services in accordance with relevant workplace sustainable energy practices |
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Completed |
Evidence:
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Report on refrigerant recovery, pressure and leak test, evacuation and charge work
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Worksite is 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 appropriate person/supervisor notified in accordance with workplace procedures |
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Completed |
Evidence:
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