This unit covers testing, recovering, evacuating and charging refrigeration systems to achieve performance specification.

Unit details

Location:
Study level:
Vocational and further education (TAFE)
Unit code:
MEM18086B

Prerequisites

MEM09002B - Interpret technical drawing

MEM12023A - Perform engineering measurements

MEM18001C - Use hand tools

MEM18002B - Use power tools/hand held operations

MEM18055B - Dismantle, replace and assemble engineering components

Assessment

Assessment tasks will be designed to reinforce and extend knowledge and skill competence within set and controlled parameters in accordance with each unit's learning outcomes and performance criteria requirements, including the setting of work based practical application tasks designed to provide evidence of competence outcomes, within periodic and scheduled timelines. Students will be expected to demonstrate the following required skills: - planning and sequencing operations; - developing operating procedures for equipment as required; - selecting correct refrigerant for a given system; - obtaining and interpreting drawings, instructions, specifications, procedures, codes and regulations; - testing and checking refrigeration components and systems including electrical safety checks and tests; - checking for conformance to specifications; - undertaking numerical operations within the scope of this unit; - determining pressures and temperatures; - documenting test results and procedures undertaken; - using equipment and test techniques; - identifying faulty components and system contamination; - applying safety procedures, standard operating procedures and legislative requirements to all work undertaken, and; - selecting appropriate materials, equipment and solutions for specific refrigeration systems.Students will also be expected to demonstrate the following knowledge: - characteristics, properties and operating specifications of each type of refrigerant; - safety precautions and work practices to be undertaken when handling or working with refrigerants; - methods of identifying stored refrigerants; - methods of identifying the type of refrigerant used in refrigeration systems; - relevant codes and regulations applying to refrigeration systems; - procedures and safety precautions for testing/checking refrigeration systems; - corrective actions for system and component faults including appropriate basic electrical safety checks; - types of leak detection equipment/techniques and their applications; - causes of contamination in refrigeration systems and their effect on refrigeration system performance; - procedures, tools and equipment to be used to clean up contaminated systems; - care and use of vacuum pumps; - tools, techniques and equipment required to carry out recovery procedures; - procedures for storing/disposing of recovered refrigerant; - consequences of releasing quantities of refrigerant into the atmosphere; - procedures for charging refrigeration systems; - correct refrigerant for a range of given applications; - tools, techniques and equipment required to charge a refrigeration system with refrigerant; - precautions to be taken when charging by various methods, refrigeration systems with refrigerant; - procedures for checking level and adding lubricating oil; - properties and uses of refrigeration oil; - hazards and control measures associated with handling refrigerants, including housekeeping, and; - safe work practices and procedures.

Where to next?

As part of a course

This unit is studied as part of the following courses. Refer to the course page for information on how to apply for the course.

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