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

MEM27026 Mapping and Delivery Guide
Service and repair mobile plant air conditioning systems

Version 1.0
Issue Date: May 2024


Qualification -
Unit of Competency MEM27026 - Service and repair mobile plant air conditioning systems
Description
Employability Skills
Learning Outcomes and Application This unit of competency defines the skills and knowledge required to service and repair in cabin air conditioning systems installed in mobile plant and rail vehicles. It covers systems supplying heating, ventilation, air conditioning (HVAC) and cooling systems to operator compartments and includes servicing, fault finding, repairing and replacing of control and operating components, refrigerant check, replacement and recovery, and recommissioning of the air conditioning system. This unit forms part of the requirements to obtain an Australian Refrigeration Council (ARC) Refrigerant handling licence – qualified persons (Automotive air conditioning licence.)In some jurisdictions, an occupational licence for refrigeration/air conditioning or electrical restricted licence may be required. Band: AUnit Weight: 4
Duration and Setting X weeks, nominally xx hours, delivered in a classroom/online/blended learning setting.
Prerequisites/co-requisites
Competency Field Fixed and Mobile Plant
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: Plan job to conform to Australian Refrigeration Council (ARC) code of practice requirements
       
Element: Service mobile plant air conditioning system
  • Check that mobile plant is parked and engine/power source are safe for air conditioning system access and work
       
Element: Conduct visual check of mobile plant air conditioning system
       
Element: Identify control modules, fieldbus wiring, sensors and control module locations for air conditioning system
       
Element: Test air conditioning system according to manufacturer specifications
       
Element: Service system and components to manufacturer specifications and workplace requirements
       
Element: Identify performance faults, leaks and blockages
       
Element: Comply with regulations regarding any required topping up of refrigerant
       
Element: Document test results according to workplace procedures
       
Element: Fault find mobile plant air conditioning system
  • Interpret system/circuit diagrams and data sheets
       
Element: Identify and inspect system and circuit components
       
Element: Select diagnostic procedures and test equipment appropriate to the system and operational history of the vehicle
       
Element: Check for leaks and blockages
       
Element: Conduct diagnostic tests on system and components performance
       
Element: Inspect and assess system/circuit parts against operational specifications
       
Element: Evaluate faulty conditions, analyse root cause and plan corrective action
       
Element: Repair or replace faulty components
       
Element: Recharge refrigerant according to procedures and regulations
       
Element: Recommission mobile plant air conditioning system
  • Reassemble air conditioning system
       
Element: Conduct post-repair/post-servicing system checks for correct operation
       
Element: Document service and repair actions according to workplace procedures
       

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.

Mobile plant air conditioning systems include one (1) or more of the following:

in cabin units

above, behind or below cabin units

single units that feed two driver cabins (e.g. some locomotive systems)

Mobile plant air conditioning system components include one (1) or more of the following:

fieldbus system control unit, modules and sensors relevant to the air conditioning system

integrated or separate measurement/testing/data logging equipment

pumps

motors

compressors

condensers

filters

pipes and hoses

switches

valves

coils and radiators

receivers

ancillary equipment

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 that mobile plant is parked and engine/power source are safe for air conditioning system access and work 
 
 
 
 
 
 
 
Interpret system/circuit diagrams and data sheets 
 
 
 
 
 
 
 
 
Reassemble air conditioning system 
 
 

Forms

Assessment Cover Sheet

MEM27026 - Service and repair mobile plant air conditioning 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

MEM27026 - Service and repair mobile plant air conditioning 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: