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

MEM18092 Mapping and Delivery Guide
Maintain and repair commercial and/or industrial refrigeration and/or air conditioning controls

Version 1.0
Issue Date: May 2024


Qualification -
Unit of Competency MEM18092 - Maintain and repair commercial and/or industrial refrigeration and/or air conditioning controls
Description
Employability Skills
Learning Outcomes and Application This unit of competency defines the skills and knowledge required to repair or replace commercial and/or industrial refrigeration and/or commercial air conditioning controls.This unit applies to the installation, adjustment, repairs, replacements and overhauls undertaken to site or manufacturers' specifications, using application of principles of domestic refrigeration and/or commercial air conditioning control sequencing.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: 6
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: Install/replace refrigeration/air conditioning controls
  • Identify control circuit components and inspect for compliance to specification
       
Element: Undertake sequential installation according to manufacturers' specifications and procedures
       
Element: Check and adjust refrigeration/air conditioning control sequence and operation
  • Check the temperature, quality, pressure and properties of the air delivered by the air conditioning system for conformance to specification
       
Element: Check controls operation against operational specifications using appropriate test equipment and application principles/techniques
       
Element: Perform adjustments to control sequence to meet/align to operational requirements and specifications
       
Element: Record modifications/alterations and report according to SOPs
       
Element: Check controls operation and return to service to specification
       
Element: Fault find refrigeration/air conditioning control circuits
  • Identify and inspect control circuit components
       
Element: Trace control circuit and diagnose action of components to identify and localise faults
       
Element: Test control circuit parts using appropriate test equipment and application principles
       
Element: Assess control circuit parts against operational specification
       
Element: Localise fault condition at the component level, evaluate faulty condition, analyse root cause and plan corrective action
       
Element: Maintain, repair/replace control components
  • Apply correct maintenance procedures according to procedures
       
Element: Use appropriate tools, equipment and techniques to test faulty items and repair or replace using sequential installation procedures according to manufacturers' specifications
       
Element: Select replacement items from manufacturers' catalogues
       
Element: Reassemble control components according to specification
       
Element: Check and adjust sequence of refrigeration/air conditioning controls
  • Identify sensors and controllers
       
Element: Make necessary adjustments to sequence control circuit and check correct operation to meet operational specification
       
Element: Return refrigeration/air conditioning controls to service to specification
       
Element: Adopt appropriate follow-up procedures
       
Element: Complete service/maintenance report in accordance with SOPs
       

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.

Control sequencing includes one (1) or more of the following:

programmable logic controllers (PLCs)

relay logic control systems

unitised/modular sensors

transducers

timers

counters

associated equipment

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

pressure gauges

multimeters

ampmeters

insulation resistance tester

cable analyser

Modifications/alterations include (1) one or more of the following:

pressure control settings

timer settings

thermostat settings

Corrective action includes one (1) or more of the following:

replacement

repair

adjustment

Maintenance procedures include the following:

overhaul of major system components

cleaning of major system components

testing operation of all control and 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) 
 
 
 
Identify control circuit components and inspect for compliance to specification 
 
Check the temperature, quality, pressure and properties of the air delivered by the air conditioning system for conformance to specification 
 
 
 
 
Identify and inspect control circuit components 
 
 
 
 
Apply correct maintenance procedures according to procedures 
 
 
 
Identify sensors and controllers 
 
 
 
 

Forms

Assessment Cover Sheet

MEM18092 - Maintain and repair commercial and/or industrial refrigeration and/or air conditioning controls
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

MEM18092 - Maintain and repair commercial and/or industrial refrigeration and/or air conditioning controls

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: