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 service and repair secondary refrigeration systems.
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The type of secondary refrigeration system, components and operation are understood. Completed |
Evidence:
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OHS procedures are identified, MSDS are obtained and understood, risk control measures are followed, PPE worn. Completed |
Evidence:
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Safety hazards that have not previously been identified are documented and risk control measures devised and implemented. Completed |
Evidence:
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The extent of faults is determined from reports, other documentation, observation and from discussion with appropriate personnel. Completed |
Evidence:
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Appropriate personnel are consulted to ensure the work is coordinated effectively with others involved on the work site. Completed |
Evidence:
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Tools, equipment and testing devices needed to carry out the work are obtained in accordance with established procedures and checked for correct operation and safety Completed |
Evidence:
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Carry out maintenance requirements
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OHS requirements, regulation, workplace procedures and risk control measures and are followed. Completed |
Evidence:
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Components are checked as being isolated, where necessary, in strict accordance OHS requirements and procedures. Completed |
Evidence:
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Maintenance tests are performed on the primary cooling source, operating pressures, operating current, refrigerant charge, secondary flow rates, condenser cooling system, document results including any systems faults or non compliance to operational specifications. Completed |
Evidence:
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Perform operational maintenance tests on the secondary refrigerant pumping / circulation devices, recording pressure and flow rates, document results, including faults or non compliance to system specification. Completed |
Evidence:
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Use test kit and follow approved OH&S procedure including PPE, check the chemical integrity (dilution rate, anti bacterial and anti corrosion rates) of the secondary refrigerant, document result or any non compliance. Completed |
Evidence:
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Secondary refrigerant pipework checked for leaks, insulation checked for soundness and pipework stability. Completed |
Evidence:
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System components evaporators, blowers, other heat exchangers, heat recovery or defrost systems are checked for correct operation and cleanliness. Completed |
Evidence:
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Test the control system operation, including safety controls, follow all OH&S guidelines, document results including any faults or non conformity to system specification. Completed |
Evidence:
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Repair secondary refrigeration systems.
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OHS work completion risk control measures and procedures are followed. Completed |
Evidence:
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Work site is cleaned and made safe in accordance with established procedures. Completed |
Evidence:
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Justification for solutions used to solve machine problems is documented. Completed |
Evidence:
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Work completion is documented and an appropriate person or persons notified in accordance with established procedures. Completed |
Evidence:
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Perform any required repairs to systems components to achieve compliance to design operation and manufactures recommendation for effective operation. Completed |
Evidence:
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Adjust control system as required to achieve compliance to design operation and manufactures recommendation, for effective operation. Completed |
Evidence:
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Record flows, pressures and temperatures obtained before and after repair and compare to specifications, implementing contingency measures where required, to ensure compliance to design operation and manufactures recommendation for effective operation. Completed |
Evidence:
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Complete reports on maintenance and repair activities
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Work completed safely, compliance is maintained with OH&S risk control measures. Completed |
Evidence:
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Work area is cleaned and made safe in accordance with established workplace procedures and practices. Completed |
Evidence:
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Report is written for service / maintenance and repair activities on secondary refrigeration system, non compliance after repair is reported to appropriate person. Completed |
Evidence:
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