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

MEM27027 Mapping and Delivery Guide
Install or modify mobile plant air conditioning systems

Version 1.0
Issue Date: May 2024


Qualification -
Unit of Competency MEM27027 - Install or modify mobile plant air conditioning systems
Description
Employability Skills
Learning Outcomes and Application This unit of competency defines the skills and knowledge required for installing or modifying in cabin air conditioning systems installed in mobile plant and rail vehicles. The unit covers systems supplying heating, ventilation, air conditioning (HVAC) and cooling systems to operator compartments and includes installing new air conditioning systems into new or operating mobile plant or rail vehicles, modification of existing air conditioning systems, commissioning of systems and replacement and recovery of refrigerant. This unit forms part of the requirements to obtain an Australian Refrigerant 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: BUnit 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: Install air conditioning system in new mobile plant
  • Check that mobile plant is parked and engine/power source are safe for air conditioning system access and work
       
Element: Check cabin installation site against drawings or specifications for access, dimension and levels
       
Element: Check supplied air conditioning system matches specification and is complete
       
Element: Identify locations for structural support brackets and other support and holding components
       
Element: Identify air conditioning connection location and requirements for power, control modules, fieldbus wiring and sensors
       
Element: Prepare all surfaces, materials and components for use
       
Element: Install air conditioning system and connections in conformance with manufacturer and customer specifications
       
Element: Check air conditioning system is levelled, aligned, coupled and connected in accordance with specifications
       
Element: Charge system with specified refrigerant according to manufacturer specifications and regulatory requirements
       
Element: Modify or retrofit mobile plant air conditioning system
  • Determine modification requirements from customer specifications, job instructions and drawings, and equipment manuals
       
Element: Check that mobile plant is isolated/made safe according to SOPs
       
Element: De-gas system using approved recovery unit and appropriate refrigerant recovery cylinder for the refrigerant type
       
Element: Recover oil and evacuate system
       
Element: Remove air conditioning system or components requiring modification according to SOPs
       
Element: Retrofit or modify air conditioning system according to manufacturer specifications and customer requirements
       
Element: Pressure test system and identify leaks and non-conformances to specifications
       
Element: Re-charge system with specified refrigerant according to manufacturer specifications and regulatory requirements
       
Element: Test and complete installation of new /retrofitted or modified mobile plant air conditioning system
  • Test air conditioning system for correct operation against specifications
       
Element: Trace non-conformances to specifications to root cause and rectify
       
Element: Document installation or modification 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 
 
 
 
 
 
 
 
 
Determine modification requirements from customer specifications, job instructions and drawings, and equipment manuals 
 
 
 
 
 
 
 
Test air conditioning system for correct operation against specifications 
 
 

Forms

Assessment Cover Sheet

MEM27027 - Install or modify 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

MEM27027 - Install or modify 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: