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SOUTH AFRICAN QUALIFICATIONS AUTHORITY 
REGISTERED UNIT STANDARD THAT HAS PASSED THE END DATE: 

Install externally powered transport refrigeration systems 
SAQA US ID UNIT STANDARD TITLE
9546  Install externally powered transport refrigeration systems 
ORIGINATOR
SGB Air-conditioning Refrigeration and Ventilation 
PRIMARY OR DELEGATED QUALITY ASSURANCE FUNCTIONARY
-  
FIELD SUBFIELD
Field 06 - Manufacturing, Engineering and Technology Engineering and Related Design 
ABET BAND UNIT STANDARD TYPE PRE-2009 NQF LEVEL NQF LEVEL CREDITS
Undefined  Regular  Level 3  NQF Level 03  6 
REGISTRATION STATUS REGISTRATION START DATE REGISTRATION END DATE SAQA DECISION NUMBER
Passed the End Date -
Status was "Reregistered" 		 2018-07-01  2023-06-30  SAQA 06120/18 
LAST DATE FOR ENROLMENT LAST DATE FOR ACHIEVEMENT
2024-06-30   2027-06-30  

In all of the tables in this document, both the pre-2009 NQF Level and the NQF Level is shown. In the text (purpose statements, qualification rules, etc), any references to NQF Levels are to the pre-2009 levels unless specifically stated otherwise.  

This unit standard does not replace any other unit standard and is not replaced by any other unit standard. 

PURPOSE OF THE UNIT STANDARD 
Installing externally powered, transport refrigeration systems. 

LEARNING ASSUMED TO BE IN PLACE AND RECOGNITION OF PRIOR LEARNING 
  • Use hand tools and refrigeration trade tools used in refrigeration.
  • Apply fixing methods, keys and locking devices.
  • Use electrical testing tools.
  • Explain the operation and function of the vapour compression refrigeration system components and accessories.
  • Join and install refrigerant piping.
  • Install belt-drives. 
    		•

    UNIT STANDARD RANGE 
    Commonly applied externally powered transport refrigeration systems. 

    Specific Outcomes and Assessment Criteria: 

    SPECIFIC OUTCOME 1 
    Prepare to install the equipment. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    1. The works order is obtained. 

    ASSESSMENT CRITERION 2 
    2. The truck in which the unit is to be installed is identified. 

    ASSESSMENT CRITERION 3 
    3. The equipment to be installed and the accessories required are obtained from the store and are as specified on the work order. 

    ASSESSMENT CRITERION 4 
    4. The equipment is checked for damage. 

    ASSESSMENT CRITERION 5 
    5. Tools required are obtained and checked. 

    ASSESSMENT CRITERION 6 
    6. The correct installation instructions are obtained. 

    SPECIFIC OUTCOME 2 
    Install the equipment. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    1. Equipment is installed in accordance with the installation instructions. 

    ASSESSMENT CRITERION 2 
    2. The interconnecting piping and accessories are installed and secured correctly and without ingress of moisture or dirt. 

    ASSESSMENT CRITERION 3 
    3. The belt drive is correctly installed and aligned. 

    ASSESSMENT CRITERION 4 
    4. The installation is pressure tested and evacuated correctly. 

    ASSESSMENT CRITERION 5 
    5. The correct refrigerant charge is introduced into the system. 

    ASSESSMENT CRITERION 6 
    6. Refrigerant is handled correctly and no excessive waste occurs. 

    ASSESSMENT CRITERION 7 
    7. The equipment is installed without injury to persons and damage to equipment. 

    ASSESSMENT CRITERION 8 
    8. The vapour barrier and thermal structure is restored. 

    SPECIFIC OUTCOME 3 
    Connect the unit electrically. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    1. The electrical wiring is connected correctly. 

    ASSESSMENT CRITERION 2 
    2. The correct size and colour wires are used. 

    ASSESSMENT CRITERION 3 
    3. Electrical wiring is tested and corrected if required. 

    ASSESSMENT CRITERION 4 
    4. Safety measures are applied. 

    SPECIFIC OUTCOME 4 
    Carry out post-installation work. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    1. The installation is cleaned properly. 

    ASSESSMENT CRITERION 2 
    2. Packing and waste material is disposed of according to company instructions. 

    ASSESSMENT CRITERION 3 
    3. Job card is completed. 

    ASSESSMENT CRITERION 4 
    4. Completion is reported to supervisor. 


    UNIT STANDARD ACCREDITATION AND MODERATION OPTIONS 
    Any person wishing to be assessed against this unit standard may apply to an assessment agency, assessor or provider institution accredited by the relevant ETQA, who may appoint a moderator to be present at the assessment.

    The assessor must have knowledge and experience of air-conditioning or refrigeration. 

    UNIT STANDARD ESSENTIAL EMBEDDED KNOWLEDGE 
  • The procedures to prepare and install the equipment in the vehicle.
  • The procedure to wire up the equipment and complete the task. 
    		•


    Critical Cross-field Outcomes (CCFO): 

    UNIT STANDARD CCFO IDENTIFYING 
    Identify and solve problems
  • Select components and measuring instruments. 
    		•

    UNIT STANDARD CCFO COLLECTING 
    Collect, analyse, organise and critically evaluate information
  • Reading of installation instructions 
    		•

    UNIT STANDARD CCFO COMMUNICATING 
    Communicate effectively
  • Being able to name components and explain processes involved 
    		•

    UNIT STANDARD CCFO SCIENCE 
    Use science and technology effectively and critically
  • Appropriate use of tools and instruments
  • Identification of accessories and their purpose 
    		•

    UNIT STANDARD CCFO DEMONSTRATING 
    Demonstrate an understanding of the world as a set of related systems
  • Understanding the effect of refrigerants, when released into the atmosphere, can have on the environment 
    		•

    UNIT STANDARD CCFO CONTRIBUTING 
    Learner and societal development
  • By learning how the refrigeration system works 
    		•

    REREGISTRATION HISTORY 
    As per the SAQA Board decision/s at that time, this unit standard was Reregistered in 2012; 2015. 

    UNIT STANDARD NOTES 
    An externally powered transport refrigeration system consists of a refrigeration compressor driven by the truck engine, a coil installed upstream of the radiator and a blower coil to be installed inside the truck cooled compartment. The trucks are used for transporting goods at low temperature. The components are interconnected by means of copper piping. 

    QUALIFICATIONS UTILISING THIS UNIT STANDARD: 
      ID QUALIFICATION TITLE PRE-2009 NQF LEVEL NQF LEVEL STATUS END DATE PRIMARY OR DELEGATED QA FUNCTIONARY
    Elective  48963   National Certificate: Air-Conditioning, Refrigeration and Ventilation  Level 3  NQF Level 03  Passed the End Date -
    Status was "Reregistered"     		 2009-03-12  Was MERSETA until Last Date for Achievement 
    Elective  65489   National Certificate: Air-Conditioning, Refrigeration and Ventilation  Level 3  NQF Level 03  Passed the End Date -
    Status was "Reregistered"     		 2023-06-30  MERSETA 
    Elective  20720   National Certificate: Air-Conditioning, Refrigeration and Ventilation  Level 3  NQF Level 03  Passed the End Date -
    Status was "Registered"     		 2004-06-13  Was MERSETA until Last Date for Achievement 


    PROVIDERS CURRENTLY ACCREDITED TO OFFER THIS UNIT STANDARD: 
    This information shows the current accreditations (i.e. those not past their accreditation end dates), and is the most complete record available to SAQA as of today. Some Primary or Delegated Quality Assurance Functionaries have a lag in their recording systems for provider accreditation, in turn leading to a lag in notifying SAQA of all the providers that they have accredited to offer qualifications and unit standards, as well as any extensions to accreditation end dates. The relevant Primary or Delegated Quality Assurance Functionary should be notified if a record appears to be missing from here.
     
    NONE 


    All qualifications and part qualifications registered on the National Qualifications Framework are public property. Thus the only payment that can be made for them is for service and reproduction. It is illegal to sell this material for profit. If the material is reproduced or quoted, the South African Qualifications Authority (SAQA) should be acknowledged as the source.