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

Repair and overhaul air-conditioning, refrigeration and ventilation equipment 
SAQA US ID UNIT STANDARD TITLE
9521  Repair and overhaul air-conditioning, refrigeration and ventilation equipment 
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 4  NQF Level 04  8 
REGISTRATION STATUS REGISTRATION START DATE REGISTRATION END DATE SAQA DECISION NUMBER
Passed the End Date -
Status was "Registered" 		 2001-06-13  2004-06-13  SAQA 0836/01 
LAST DATE FOR ENROLMENT LAST DATE FOR ACHIEVEMENT
2005-06-13   2008-06-13  

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 is replaced by: 
US ID Unit Standard Title Pre-2009 NQF Level NQF Level Credits Replacement Status
116421  Repair and overhaul air-conditioning, refrigeration and ventilation equipment  Level 4  NQF Level 04  8   

PURPOSE OF THE UNIT STANDARD 
Repair and overhaul air-conditioning, refrigeration and ventilation components and equipment. People credited with this unit standard have proven the ability to:
  • Apply instructions, technical drawings, specifications and data to repair and overhaul refrigeration and air-conditioning components and equipment.
  • Select the correct method of repair and overhaul.
  • Undertake the work correctly and safely.
  • Test the assembled component or equipment for acceptable operation. 
    		•

    LEARNING ASSUMED TO BE IN PLACE AND RECOGNITION OF PRIOR LEARNING 
    Ability to select, use and care for the relevant refrigeration tools and instrumentation.
  • Operate and maintain power tools used in the refrigeration, air-conditioning and ventilation trade.
  • Use and maintain refrigeration trade service tools and instruments.
  • Interpret technical drawings. 
    		•

    UNIT STANDARD RANGE 
    Compressors, motors, pumps, fans and components used in refrigeration and air-conditioning. 

    Specific Outcomes and Assessment Criteria: 

    SPECIFIC OUTCOME 1 
    State the purpose of component overhaul and repair. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    1. The purpose of overhaul and repair in terms of performance and economic considerations is explained. 

    ASSESSMENT CRITERION 2 
    2. The type of overhaul and repair is explained and described. 
    ASSESSMENT CRITERION RANGE 
    Minor repair on site. Minor overhaul, repair and reconditioning. Major overhaul and repair and complete reconditioning of components and ancillaries.
     

    SPECIFIC OUTCOME 2 
    Plan the overhaul and repair operation. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    1. The work sequence and techniques for the overhaul and repair is planned and the importance of the various sequences and techniques is explained. 

    ASSESSMENT CRITERION 2 
    2. The type and quantities of material, tools, equipment and instrumentation required is included in the plan. 

    ASSESSMENT CRITERION 3 
    3. Work activities are planned to maintain productive work output and ensure compliance with given work instructions. 

    ASSESSMENT CRITERION 4 
    4. The form and principles of tools used for overhaul and repair is described. 

    SPECIFIC OUTCOME 3 
    Carry out overhaul and repair activities. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    1. Safe handling of tools, equipment and instrumentation in accordance with their intended use and/or manufacturer's specification and to prevent harm to oneself and others and damage to equipment, is demonstrated. 

    ASSESSMENT CRITERION 2 
    2. Overhaul and repair is carried out according to manufacturer's specifications and procedures. 

    ASSESSMENT CRITERION 3 
    3. Functioning of the various components of the equipment is described. 

    ASSESSMENT CRITERION 4 
    4. The common defects, for which equipment parts should be examined, are described. 

    ASSESSMENT CRITERION 5 
    5. Reconditioning processes to rectify defects are described. 

    ASSESSMENT CRITERION 6 
    6. Components or parts are checked for functionality and defective components are repaired or replaced according to standard operating procedures. 

    ASSESSMENT CRITERION 7 
    7. All components and spare parts are positioned and secured in accordance with manufacturer's recommendations. 

    ASSESSMENT CRITERION 8 
    8. Frequent checks are carried out during the progress of work to ensure correctness of operation. 

    ASSESSMENT CRITERION 9 
    9. Spare parts are inspected for functionality and any deviation form specification is identified and corrective action is taken in line with company procedures and manufacturer's instructions. 

    ASSESSMENT CRITERION 10 
    10. The equipment is repaired or overhauled within agreed time frames. 

    ASSESSMENT CRITERION 11 
    11. The consequence of sub-standard repair is described in terms of loss in production, danger to plant and personnel, long-term damage to machinery and their cost implication. 

    ASSESSMENT CRITERION 12 
    12. The effects and importance of forces, tolerances, correct positioning and mating of components required during assembly, are described. 

    SPECIFIC OUTCOME 4 
    Carry out post-repair and overhaul activities. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    1. Work is checked in accordance with written instructions to ensure compliance. 

    ASSESSMENT CRITERION 2 
    2. The method and equipment required for testing the component is described. 

    ASSESSMENT CRITERION 3 
    3. Operation of the component and/or equipment is tested in accordance with specified operating instructions. 

    ASSESSMENT CRITERION 4 
    4. The work area is cleaned, and tools and surplus material is stored in accordance with accepted housekeeping principles. 

    ASSESSMENT CRITERION 5 
    5. Completion of the work is reported in line with agreed company procedures. 


    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, refrigeration or ventilation equipment. 

    UNIT STANDARD ESSENTIAL EMBEDDED KNOWLEDGE 
  • Use of technical drawings and specifications used for repair and overhaul of equipment.
  • Knowledge of consequences of sub-standard workmanship.
  • Planning repair and overhaul procedures. 
    		•


    Critical Cross-field Outcomes (CCFO): 

    UNIT STANDARD CCFO IDENTIFYING 
    Identify and solve problems
  • Identifying components and faulty parts to be replaced 
    		•

    UNIT STANDARD CCFO WORKING 
    Work effectively with others
  • Work with others during assembly of equipment 
    		•

    UNIT STANDARD CCFO ORGANISING 
    Organise and manage myself and my activities responsibly and effectively
  • Preparing, planning and selecting correct repair and overhaul procedures 
    		•

    UNIT STANDARD CCFO COMMUNICATING 
    Communicate effectively
  • Presenting oral or written reports to supervisor 
    		•

    UNIT STANDARD CCFO SCIENCE 
    Use science and technology effectively and critically
  • Using correct tools, instrumentation and parts 
    		•

    UNIT STANDARD CCFO DEMONSTRATING 
    Demonstrate an understanding of the world as a set of related systems
  • Impact of substandard or incorrect repair method on people and environment 
    		•

    UNIT STANDARD NOTES 
    This unit standard has been replaced by unit standard 116421, which is "Repair and overhaul air-conditioning, refrigeration and ventilation equipment", Level 4, 8 credits.

    Specific requirements are contained in one or more of the following documents:
  • Manufacturer`s instructions regarding dismantling and assembly of equipment.
  • Relevant technical drawings and specifications.
  • Company procedures and guidelines.
  • Occupational Health and Safety Act. 
    		•

    QUALIFICATIONS UTILISING THIS UNIT STANDARD: 
      ID QUALIFICATION TITLE PRE-2009 NQF LEVEL NQF LEVEL STATUS END DATE PRIMARY OR DELEGATED QA FUNCTIONARY
    Core  20721   National Certificate: Air Conditioning, Refrigeration and Ventilation  Level 4  NQF Level 04  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.