Unit of Competency Mapping – Information for Teachers/Assessors – Information for Learners

MEM18091 Mapping and Delivery Guide
Maintain and repair multistage, cascade and/or ultra-cold industrial refrigeration systems

Version 1.0
Issue Date: May 2024


Qualification -
Unit of Competency MEM18091 - Maintain and repair multistage, cascade and/or ultra-cold industrial refrigeration systems
Description
Employability Skills
Learning Outcomes and Application This unit of competency defines the skills and knowledge required to maintain and repair multistage, cascade and ultra-cold industrial refrigeration systems.It applies to retrofitting existing multi-stage, cascade and/or ultra-cold industrial refrigeration systems; reconditioning components; returning to service and testing systems; and completing service reports for administrative action.A Refrigerant Handling Licence must be held by any person who carries out work in relation to refrigeration and air conditioning equipment. Band: BUnit Weight: 4
Duration and Setting X weeks, nominally xx hours, delivered in a classroom/online/blended learning setting.
Prerequisites/co-requisites
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
Elements of Competency Performance Criteria              
Element: Determine job requirements
  • Follow standard operating procedures (SOPs)
       
Element: Comply with work health and safety (WHS) requirements at all times
       
Element: Use appropriate personal protective equipment (PPE) in accordance with SOPs
       
Element: Identify job requirements from specifications, drawings, job sheets or work instructions
       
Element: Undertake preventive maintenance checks/ adjustments
  • Check the temperature, pressure and properties of the system for conformance to specification
       
Element: Check the noise/vibration levels of the system for conformance to specification
       
Element: Perform preventative maintenance tasks according to manufacturers' specifications using refrigeration techniques/practices
       
Element: Undertake fault-finding
  • Identify system components
       
Element: Interpret the characteristics and operation of each component
       
Element: Inspect and test the operational function of each component and assess correct operation against specification
       
Element: Repair/replace faulty components
  • Localise faulty components and confirm malfunction
       
Element: Remove the refrigerant safely from the system and contain in accordance with procedures and regulatory requirements, where appropriate
       
Element: Dismantle faulty components and repair to manufacturers' specifications, as required
       
Element: Select replacement parts from manufacturers' catalogues
       
Element: Return to service multistage, cascade and/or ultra-cold refrigeration systems
  • Reassemble components and test for correct operation and assess against specification
       
Element: Charge the system safely with correct refrigerant and in accordance with procedures and regulatory requirements, where appropriate
       
Element: Verify correct operation of the equipment
       
Element: Complete maintenance records/service reports according to SOPs and legislative requirements
       

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.

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.

Test equipment includes one (1) or more of the following:

measuring instruments/equipment for checking:

temperatures

pressures

properties

noise and vibration levels

multimeter

ampmeter

insulation resistance tester

Preventative maintenance tasks include one (1) or more of the following:

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
Follow standard operating procedures (SOPs) 
 
 
 
Check the temperature, pressure and properties of the system for conformance to specification 
 
 
Identify system components 
 
 
Localise faulty components and confirm malfunction 
 
 
 
Reassemble components and test for correct operation and assess against specification 
 
 
 

Forms

Assessment Cover Sheet

MEM18091 - Maintain and repair multistage, cascade and/or ultra-cold industrial refrigeration systems
Assessment task 1: [title]

Student name:

Student ID:

I declare that the assessment tasks submitted for this unit are my own work.

Student signature:

Result: Competent Not yet competent

Feedback to student

 

 

 

 

 

 

 

 

Assessor name:

Signature:

Date:

Assessment Record Sheet

MEM18091 - Maintain and repair multistage, cascade and/or ultra-cold industrial refrigeration systems

Student name:

Student ID:

Assessment task 1: [title] Result: Competent Not yet competent

(add lines for each task)

Feedback to student:

 

 

 

 

 

 

 

 

Overall assessment result: Competent Not yet competent

Assessor name:

Signature:

Date:

Student signature:

Date: