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Evidence Guide: MEM18086 - Test, recover, evacuate and charge refrigeration systems

Student: __________________________________________________

Signature: _________________________________________________

Tips for gathering evidence to demonstrate your skills

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

 

MEM18086 - Test, recover, evacuate and charge refrigeration systems

What evidence can you provide to prove your understanding of each of the following citeria?

Determine job requirements

  1. Follow standard operating procedures (SOPs)
Follow standard operating procedures (SOPs)

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Comply with work health and safety (WHS) requirements at all times

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Use appropriate personal protective equipment (PPE) in accordance with SOPs

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Identify job requirements from specifications, drawings, job sheets or work instructions

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assess refrigeration system operation

  1. Apply refrigeration system operating principles and terminology to assessment of system operation
Apply refrigeration system operating principles and terminology to assessment of system operation

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Access and interpret all relevant informationto commencement of work on the refrigeration system

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Undertake checks on the refrigeration system, including appropriate basic electrical safety checks in accordance with relevant codes and regulations

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Develop appropriate operating procedures, as required

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Determine and record pressures and temperatures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Isolate faults to component level and determine appropriate corrective action

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Check the refrigeration system for leaks and any contamination

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Recover refrigerant and evacuate system

  1. Recover and contain refrigerant used in the system in accordance with codes and regulations
Recover and contain refrigerant used in the system in accordance with codes and regulations

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Evacuate the refrigeration system in accordance with codes and regulations

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Charge the refrigeration system

  1. Charge the refrigeration system with the correct refrigerant
Charge the refrigeration system with the correct refrigerant

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Add appropriate lubricating oil to the refrigeration system

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Check the refrigeration system for leaks

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Required Skills and Knowledge
Range Statement

This field allows for different work environments and conditions that may affect performance. Essential operating conditions that may be present (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) are included.

Relevant information includes one (1) or more of the following:

manufacturers' technical data

pressure temperature charts

operating manuals

Appropriate corrective action includes:

isolation and tagging of faulty components, repair and/or replacement

Contamination includes one (1) or more of the following:

moisture

non-condensables

solids and acids

Refrigerant includes one (1) or more of the following:

chlorofluorocarbons (CFCs)

hydrochlorofluorocarbons (HCFCs)

hydrofluorocarbons (HFCs)

natural refrigerants

ammonia

Relevant codes and regulations include:

Australian Standards, refrigeration and air conditioning codes of practice, relevant ozone and greenhouse substance legislation