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

Use water circuits to determine the performance of a refrigeration plant and take appropriate remedial action 
SAQA US ID UNIT STANDARD TITLE
120340  Use water circuits to determine the performance of a refrigeration plant and take appropriate remedial action 
ORIGINATOR
SGB Occupational Health and Safety 
PRIMARY OR DELEGATED QUALITY ASSURANCE FUNCTIONARY
-  
FIELD SUBFIELD
Field 09 - Health Sciences and Social Services Preventive Health 
ABET BAND UNIT STANDARD TYPE PRE-2009 NQF LEVEL NQF LEVEL CREDITS
Undefined  Regular-Fundamental  Level 4  NQF Level 04  3 
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 
Learners credited with this unit standard will be able to evaluate a refrigeration plant with respect to the water circuit. The competency includes all the actions associated with assessing the performance of the water circuit. 

LEARNING ASSUMED TO BE IN PLACE AND RECOGNITION OF PRIOR LEARNING 
  • Communication at NQF Level 2
  • Mathematical Literacy at NQF Level 2 
    		•

    UNIT STANDARD RANGE 
    All the Specific Outcomes and Associated Assessment Criteria are assessed in accordance with specified requirements and-where applicable-consequences to health and safety.
  • This unit standard is universally applicable to all refrigeration plants.
  • The measuring of environmental factors include, but are not limited to:

    > Air velocities.
    > Thermal conditions.
    > Illumination.
    > Sound (noise).
    > Gases and vapours.
    > Aerosols.
    > Dusts.
    > Fibres.
    > Ventilation system pressures.
  • The measuring methods of air velocities include, but are not limited to:
    > Tape and smoke.
    > Vane anemometer.
    > Hot-wire anemometer.
    > Kata thermometer.
  • Liquid and vapour cycles.
  • Hot and cold circuits.
  • High pressure and low-pressure regions.
  • Evaporative cooling.
  • Plant room and equipment.

    Specified requirements include current legal and site-specific requirements and are contained in one or more of the following documents:

    Legal:
  • OHS Act and Regulations
  • Mine Health and Safety Act and Regulations
  • Guideline for mandatory Codes of Practice

    Site-specific:
  • Managerial instructions
  • Codes of Practice
  • Company Standards
  • Standard Task Procedures
  • Health Management Program
  • Risk Assessment Documentation
  • Working Guides
  • Manufacturers' specifications 
    		•

    Specific Outcomes and Assessment Criteria: 

    SPECIFIC OUTCOME 1 
    Explain the fundamental principles of the installation and operation of a refrigeration plant. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    The basic principles of refrigeration are explained. 

    ASSESSMENT CRITERION 2 
    The basic units of measurement are stated. 

    ASSESSMENT CRITERION 3 
    The legal and site-specific requirements pertaining to refrigeration plant rooms are given. 

    SPECIFIC OUTCOME 2 
    Prepare to assess the performance of the water circuit of a refrigeration plant. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    Suitable personal protective equipment is examined for functionality and used in accordance with its design. 

    ASSESSMENT CRITERION 2 
    The measuring instruments and their calibrations are examined. 

    ASSESSMENT CRITERION 3 
    Permission to enter the working place is obtained and the consequences of entering a workplace without obtaining permission are explained. 

    ASSESSMENT CRITERION 4 
    The site where the assessment is to take place is examined for hazards and risks and any present are dealt with. 

    ASSESSMENT CRITERION 5 
    The measuring positions are selected. 

    ASSESSMENT CRITERION 6 
    Preparatory work is performed in a manner that fosters teamwork and avoids conflict. 

    SPECIFIC OUTCOME 3 
    Assess the water circuit performance of a refrigeration plant. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    The physical inspection of the refrigeration plant room and equipment, including safety signs, is conducted. 

    ASSESSMENT CRITERION 2 
    The measurement of conditions and recording of data is carried out. 

    SPECIFIC OUTCOME 4 
    Report, make recommendations and deal with equipment. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    Instruments are retrieved, examined and re-calibrated. 

    ASSESSMENT CRITERION 2 
    The equipment and instruments are re-examined and conditions that may influence the measurements and accuracy of readings are identified and dealt with accordingly. 

    ASSESSMENT CRITERION 3 
    The instruments are cleaned and stored, and defective instruments are dealt with accordingly. 

    ASSESSMENT CRITERION 4 
    Recording and reporting are completed accurately, in the required format, and submitted to relevant designated persons within the required time frame. 


    UNIT STANDARD ACCREDITATION AND MODERATION OPTIONS 
  • Anyone assessing a learner against this unit standard must be registered as an assessor with the relevant ETQA or ETQA that has a Memorandum of Understanding in place with the relevant ETQA.
  • Any institution offering learning that will enable achievement of this unit standard must be accredited, as a provider, by the relevant ETQA or ETQA that has a Memorandum of Understanding in place with the relevant ETQA.
  • Moderation of assessment will be overseen by the relevant ETQA according the moderation guidelines in the relevant qualification and the agreed ETQA procedures. 
    		•

    UNIT STANDARD ESSENTIAL EMBEDDED KNOWLEDGE 
    N/A 

    UNIT STANDARD DEVELOPMENTAL OUTCOME 
    N/A 

    UNIT STANDARD LINKAGES 
    N/A 


    Critical Cross-field Outcomes (CCFO): 

    UNIT STANDARD CCFO IDENTIFYING 
    Solve problems related to the measurement and assessment of a refrigeration plant performance by recommending remedial and preventative measures. 

    UNIT STANDARD CCFO WORKING 
    Work effectively with others as a member of a team/group/organisation/community by accepting, interpreting and delegating instructions correctly, if and when required, in a context-appropriate manner. 

    UNIT STANDARD CCFO ORGANISING 
    Organise and manage themselves and their activities responsibly and effectively by meeting specified requirements, recording test results in specified formats, and recommending appropriate action where necessary. 

    UNIT STANDARD CCFO COLLECTING 
    Collect, organise and critically evaluate information to correct for conditions, environmental factors, and limitations that can influence readings, interpret information obtained, and recommend appropriate remedial action. 

    UNIT STANDARD CCFO COMMUNICATING 
    Communicate effectively using visual, mathematics and language skills in the modes of oral and written presentations to record and report test results. 

    UNIT STANDARD CCFO SCIENCE 
    Use science and technology effectively and critically (showing responsibility towards the environment and health of others) to select the appropriate methods and instruments for assessing and evaluating the performance of a refrigeration plant. 

    UNIT STANDARD CCFO DEMONSTRATING 
    Demonstrate an understanding of the world as a set of related systems by recommending appropriate actions based on the evaluation of test results and reporting results to relevant designated persons, confirming that a specific observation, inference, action or decision can have an interrelated effect. 

    UNIT STANDARD ASSESSOR CRITERIA 
    N/A 

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

    UNIT STANDARD NOTES 
    This unit standard was Gazetted on 21 October 2005 with the title 'Determine a refrigeration plant duty with respect to water circuits and recommend appropriate remedial action'. However, it has subsequently been agreed that the title should be 'Use water circuits to determine the performance of a refrigeration plant and take appropriate remedial action'. 

    QUALIFICATIONS UTILISING THIS UNIT STANDARD: 
      ID QUALIFICATION TITLE PRE-2009 NQF LEVEL NQF LEVEL STATUS END DATE PRIMARY OR DELEGATED QA FUNCTIONARY
    Core  79806   National Certificate: Occupational Hygiene and Safety  Level 3  NQF Level 03  Passed the End Date -
    Status was "Reregistered"     		 2023-06-30  As per Learning Programmes recorded against this Qual 


    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.
     
    1. MODIKWA MINING PERSONNEL SERVICES PTY L TD 
    2. Nokaneng Environmental Management Consulting 


    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.