- MEM18090B - Maintain and repair industrial refrigeration systems and components
Unit of Competency Mapping – Information for Teachers/Assessors – Information for Learners
MEM18090B Mapping and Delivery Guide
Maintain and repair industrial refrigeration systems and components
Version 1.0
Issue Date: June 2024
Qualification | - |
Unit of Competency | MEM18090B - Maintain and repair industrial refrigeration systems and components |
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Description | The unit covers maintaining and repairing industrial refrigeration systems. It includes interpreting drawings and diagrams of industrial refrigeration systems systems; utilising fault finding procedures and testing equipment to identify and diagnose faults in systems and isolate faulty components; rectifying faults; returning to service; testing the systems; and completing service reports. | ||
Employability Skills | This unit contains employability skills. | ||
Learning Outcomes and Application | This unit applies to industrial refrigeration systems that may include large capacity plant typically used for product/process temperature/environment control. Work may also include retrofitting existing industrial refrigeration systems and reconditioning components. The application of this competency must cover a variety of refrigeration and air conditioning equipment and systems. Prerequisite pathways must be applied within a refrigeration/air conditioning context.Band: AUnit Weight: 6 | ||
Duration and Setting | X weeks, nominally xx hours, delivered in a classroom/online/blended learning setting. |
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Prerequisites/co-requisites | Path 1MEM05006C Perform brazing and /or silver solderingMEM09002B Interpret technical drawingMEM10002B Terminate and connect electrical wiringMEM10010B Install pipework and pipework assembliesMEM12002B Perform electrical/electronic measurementMEM12023A Perform engineering measurementsMEM18001C Use hand toolsMEM18002B Use power tools/hand held operationsMEM18049C Disconnect/reconnect fixed wired equipment up to 1000 volts a.c./1500 volts d.c.MEM18055B Dismantle, replace and assemble engineering componentsMEM18086B Test, recover, evacuate and charge refrigeration systems | ||
Competency Field | Maintenance and diagnostics |
Development and validation strategy and guide for assessors and learners | Student Learning Resources | Handouts Activities |
Slides PPT |
Assessment 1 | Assessment 2 | Assessment 3 | Assessment 4 | |
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Elements of Competency | Performance Criteria | |||||||
Element: Undertake preventive maintenance checks/adjustment on industrial refrigeration systems and components |
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Element: Undertake fault finding on industrial refrigeration systems and components |
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Element: Repair/replace faulty industrial refrigeration components |
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Element: Return to service industrial refrigeration systems and components |
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Evidence Required
List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.
The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package. | |
Overview of assessment | A person who demonstrates competency in this unit must be able to maintain and repair industrial refrigeration systems and components. Competency in this unit cannot be claimed until all prerequisites have been satisfied. |
Critical aspects for assessment and evidence required to demonstrate competency in this unit | Assessors must be satisfied that the candidate can competently and consistently perform all elements of the unit as specified by the criteria, including required knowledge, and be capable of applying the competency in new and different situations and contexts. |
Context of and specific resources for assessment | This unit may be assessed on the job, off the job or a combination of both on and off the job. Where assessment occurs off the job, that is the candidate is not in productive work, then an appropriate simulation must be used where the range of conditions reflects realistic workplace situations. The competencies covered by this unit would be demonstrated by an individual working alone or as part of a team. The assessment environment should not disadvantage the candidate. This unit could be assessed in conjunction with any other units addressing the safety, quality, communication, materials handling, recording and reporting associated with the maintenance and repair of industrial refrigeration systems, or other units requiring the exercise of the skills and knowledge covered by this unit. |
Method of assessment | Assessors should gather a range of evidence that is valid, sufficient, current and authentic. Evidence can be gathered through a variety of ways including direct observation, supervisor's reports, project work, samples and questioning. Questioning techniques should not require language, literacy and numeracy skills beyond those required in this unit of competency. The candidate must have access to all tools, equipment, materials and documentation required. The candidate must be permitted to refer to any relevant workplace procedures, product and manufacturing specifications, codes, standards, manuals and reference materials. |
Guidance information for assessment |
Submission Requirements
List each assessment task's title, type (eg project, observation/demonstration, essay, assignment, checklist) and due date here
Assessment task 1: [title] Due date:
(add new lines for each of the assessment tasks)
Assessment Tasks
Copy and paste from the following data to produce each assessment task. Write these in plain English and spell out how, when and where the task is to be carried out, under what conditions, and what resources are needed. Include guidelines about how well the candidate has to perform a task for it to be judged satisfactory.
Required skills |
Look for evidence that confirms skills in: using tools, techniques and equipment necessary to check industrial refrigeration systems and components for correct operation comparing system and component performance/operation against specification identifying faulty components and non-compliances making required adjustments to achieve specifications sourcing and using relevant catalogues/lists applying safety procedures, standard operating procedures and legislative requirements to all work undertaken documenting results of the adjustments reading, interpreting and following information on written job instructions, specifications, standard operating procedures, charts, lists, drawings and other applicable reference documents planning and sequencing operations checking task-related information undertaking calculations and numerical operations within the scope of this unit |
Required knowledge |
Look for evidence that confirms knowledge of: measuring instruments/equipment, specifications and procedures for checking temperature(s) properties of controlled medium(s) measuring instruments/equipment, specifications and procedures for checking components noise and vibration levels procedures for reporting non-conformances procedures and sequence for performing preventative maintenance on air conditioning systems specifications, operational characteristics and process for identifying system components process for localising and confirming faulty components procedures and all legislative and regulatory requirements for safely removing the refrigerant and charging the system procedures for dismantling, repairing, reassembling and testing components procedures for selecting replacement parts procedures for completing maintenance records/service reports hazards and control measures associated with maintaining and repairing industrial refrigeration systems and components safe work practices and procedures |
The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included. | |
Controlled medium/s | Process chilling, secondary refrigerants e.g. glycol, brine, air, water, ice etc. |
Preventative maintenance tasks | Check/adjust fan belts, check/clean filters, check/clean heat exchangers (evaporator and condenser), overhaul of major system components, cleaning of major system components, testing operation of all safety devices |
Copy and paste from the following performance criteria to create an observation checklist for each task. When you have finished writing your assessment tool every one of these must have been addressed, preferably several times in a variety of contexts. To ensure this occurs download the assessment matrix for the unit; enter each assessment task as a column header and place check marks against each performance criteria that task addresses.
Observation Checklist
Tasks to be observed according to workplace/college/TAFE policy and procedures, relevant legislation and Codes of Practice | Yes | No | Comments/feedback |
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The temperature and properties of the controlled medium/s are checked for conformance to specification. | |||
The noise/vibration levels of the industrial refrigeration system components are checked for conformance to specification. | |||
Preventative maintenance tasks and plant room safety equipment checks are performed according to manufacturers' specifications using refrigeration principles techniques/practices. | |||
System components are identified correctly. | |||
The characteristics and operation of each component is understood. | |||
The operational function of each component is inspected and tested. | |||
Correct operation of each component is assessed against specification. | |||
Faulty components are localised and malfunction is confirmed by inspection and testing using industrial refrigeration principles, procedures and safety requirements. | |||
The refrigerant is removed safely from the system and contained in accordance with standard operating procedures and regulatory requirements where appropriate. | |||
Faulty components are dismantled and repaired to manufacturers' specifications as required. | |||
Replacement parts are selected from manufacturers' catalogues according to required specifications. | |||
Components are reassembled and tested for correct operation and assessed against specification. | |||
The system is charged with correct refrigerant safely and in accordance with standard operating procedures and regulatory requirements where appropriate. | |||
Using industrial refrigeration principles and system application techniques, correct operation of the equipment is verified. | |||
Maintenance records/service reports are completed by appropriate designated means. |
Forms
Assessment Cover Sheet
MEM18090B - Maintain and repair industrial refrigeration systems and components
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Assessment Record Sheet
MEM18090B - Maintain and repair industrial refrigeration systems and components
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Assessment task 1: [title] Result: Competent Not yet competent
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Feedback to student:
Overall assessment result: Competent Not yet competent
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