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SOUTH AFRICAN QUALIFICATIONS AUTHORITY 
REGISTERED UNIT STANDARD: 

Apply plumbing principles as they pertain to the installation of a hot water system 
SAQA US ID UNIT STANDARD TITLE
262786  Apply plumbing principles as they pertain to the installation of a hot water system 
ORIGINATOR
SGB Civil Engineering Construction 
PRIMARY OR DELEGATED QUALITY ASSURANCE FUNCTIONARY
-  
FIELD SUBFIELD
Field 12 - Physical Planning and Construction Civil Engineering Construction 
ABET BAND UNIT STANDARD TYPE PRE-2009 NQF LEVEL NQF LEVEL CREDITS
Undefined  Regular  Level 2  NQF Level 02 
REGISTRATION STATUS REGISTRATION START DATE REGISTRATION END DATE SAQA DECISION NUMBER
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 
The purpose of this Unit Standard is to enable learners to understand and apply basic knowledge of all principles pertaining to the installation of hot water system, to interpret and apply building drawings, use basic pipe sizing, and to select plumbing system components and materials. These principles are critically important for the work to be performed by an installer.

Learners credited with this standard will be able to:
  • Apply principles pertaining to installation of a hot water system.
  • Apply basic pipe sizing to plumbing applications/operations.
  • Describe domestic solar and electrical hot water systems components and materials.
  • Identify and describe the uses of plumbing tools, components and materials. 

  • LEARNING ASSUMED TO BE IN PLACE AND RECOGNITION OF PRIOR LEARNING 
  • Communication at NQF Level 1.
  • Mathematical Literacy at NQF Level 1. 

  • UNIT STANDARD RANGE 
    This Unit Standard is for those working in a domestic context only.

    The application of basic plumbing hydraulic theory, the design and sizing of piping, and the selection of components are according to the following qualitative specifications:
  • SANS 10254.
  • SANS 10252 Part 1.
  • SANS 10106.
  • SANS 10400.

    Pressure includes:
  • Gauge, negative (vacuum) pressures, and their relationship to height.

    Pollution includes for:
  • Backflow prevention.

    Pipe sizing includes:
  • Determining site and structural constraints; select practical routing; determining available supply pressure.

    Valves include:
  • Ball; float; gate; diaphragm; control, air relief; vacuum relief; pressure reducing; pressure relief; temperature and pressure safety. Also: strainers/filters.

    Pumps include:
  • Hot water circulating; basic pump installations.

    Includes but is not limited to:
  • Pipe and fitting materials like copper, Polypropylene, galvanized mild steel (GMS), cross linked polyethylene (PE-X), polybutylene.

    Hot water systems include:
  • Pressurised storage; Roof tank fed; Combination; Solar (direct and indirect) two part (split); Insulation; and Circulating flow and return.

    An understanding of Water and Energy conservation.

    Health and safety - related to water heating systems. 

  • Specific Outcomes and Assessment Criteria: 

    SPECIFIC OUTCOME 1 
    Apply principles pertaining to installation of a water system. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    The theory/role of pressure and flow principles are explained to show their importance in the installation of a water system. 

    ASSESSMENT CRITERION 2 
    The use and importance of a pressure and a temperature gauge are demonstrated in the context of the activity being performed. 

    ASSESSMENT CRITERION 3 
    Pressure and flow principles are applied to ensure that plumbing work performed is in accordance with relevant regulations requirements. 

    ASSESSMENT CRITERION 4 
    The principles pertaining to the physical properties of water are explained to show its behaviour in different circumstances. 

    ASSESSMENT CRITERION 5 
    The principles of pressure loss are described in terms of how it affects the performance of a water supply system. 

    ASSESSMENT CRITERION 6 
    The principle of thermal expansion is explained in terms of how it can impact on installation of a water system. 

    ASSESSMENT CRITERION 7 
    Pollution prevention principles are applied so that cross connections and backflow are avoided. 
    ASSESSMENT CRITERION RANGE 
    Includes but is not limited to glycol contamination.
     

    SPECIFIC OUTCOME 2 
    Apply basic pipe sizing to plumbing applications/operations. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    Various types and sizes of pipes and fittings are identified and described in terms of their differences. 

    ASSESSMENT CRITERION 2 
    The pipe sizes are determined to ensure correct flow rate, velocity and pressure. 

    SPECIFIC OUTCOME 3 
    Describe domestic solar and electrical hot water systems components and materials. 
    OUTCOME RANGE 
    Includes but is not limited to SANS 1307 combinations and SANS 10106. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    The types of solar and electrical hot water systems are identified and described in terms of their differences. 

    ASSESSMENT CRITERION 2 
    Components for the different systems are identified in terms of the functions they perform in their respective systems. 
    ASSESSMENT CRITERION RANGE 
    In the case of solar water heating systems this includes but is not limited to basic valve; collectors heat exchangers, pump, storage units.
     

    ASSESSMENT CRITERION 3 
    The reasons for their use in the different systems are explained to show how their incorrect usage will affect the system. 

    SPECIFIC OUTCOME 4 
    Identify and describe the uses of plumbing tools, components and materials. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    Plumbing tools and equipment are identified and their uses are described. 

    ASSESSMENT CRITERION 2 
    Plumbing pipe work and related fittings are identified and their uses are described. 

    ASSESSMENT CRITERION 3 
    Plumbing sanitary ware fixtures and fittings are identified and their uses are described. 

    ASSESSMENT CRITERION 4 
    Ancillary plumbing materials and consumables are identified and their uses are described. 


    UNIT STANDARD ACCREDITATION AND MODERATION OPTIONS 
  • Anyone assessing a learner or moderating the assessment of a learner against this unit standard must be registered as an assessor with the relevant ETQA.
  • Any institution offering learning that will enable the achievement of this unit standard must be accredited as a provider with the relevant ETQA.
  • Assessment and moderation of assessment will be overseen by the relevant ETQA according to the ETQA policies and guidelines for assessment and moderation.
  • Moderation must include both internal and external moderation of assessments at exit points of the qualification, unless ETQA policies specify otherwise. Moderation should also encompass achievement of the competence described both in individual unit standards as well as the integrated competence described in the qualification. 

  • UNIT STANDARD ESSENTIAL EMBEDDED KNOWLEDGE 
    Qualifying learners understand and can explain:
  • Pressure and how it is expressed and measured, the use of pressure gauges; differential areas; effect on velocity; effect on flow rate; static pressure; flow/dynamic pressure; terminal pressure; pressure gradient; Bernoulli`s theorem - application; flow restrictions/enlargements; differential pressures; friction pressure loss; reading flow rate/pressure loss charts; pressure/energy gradient; cavitation; velocity; flow rate; siphon; effects of entrapped air; pressure shocks; water hammer; laminar & turbulent flow; vortices; open channel flow, and flow in pipelines.
  • Sound waves in water.
  • Air dissolved in water and how it is expressed.
  • Temperature of water and how it is expressed and measured, as well as the concepts of: thermal expansion linear/volumetric; dew point/condensation; boiling point/steam; freezing point/ice; density graph; latent heat of fusion; latent heat of evaporation; super heated water.
  • Corrosion and the causes and prevention of corrosion, material selection, and dezincification.
  • The concepts and principles related to ground water and grey water. 

  • UNIT STANDARD DEVELOPMENTAL OUTCOME 
    N/A 

    UNIT STANDARD LINKAGES 
    N/A 


    Critical Cross-field Outcomes (CCFO): 

    UNIT STANDARD CCFO IDENTIFYING 
    Identify and solve problems in which responses display that responsible decisions using critical and creative thinking have been made when:
  • Reading and interpreting building drawings. 

  • UNIT STANDARD CCFO WORKING 
    Work effectively with others as a member of a team, group, organisation, community to:
  • Ensure that plumbing principles are correctly applied in the installation of hot water systems. 

  • UNIT STANDARD CCFO ORGANISING 
    Organise and manage oneself and one's activities responsively and effectively when:
  • Applying pressure and flow principles.
  • Reading and interpreting building drawings.
  • Determining pipe sizes.
  • Describing components of domestic solar and electrical hot water systems. 

  • UNIT STANDARD CCFO COMMUNICATING 
    Communicate effectively using visual, mathematical and/or language skills in the modes of oral and/or written presentation to:
  • Use plumbing principles to the installation of a hot water system. 

  • UNIT STANDARD CCFO SCIENCE 
    Use science and technology effectively and critically, showing responsibility towards the environment and the health of others by:
  • Using the equipment according to manufacturer's instructions. 

  • 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 
    N/A 

    QUALIFICATIONS UTILISING THIS UNIT STANDARD: 
      ID QUALIFICATION TITLE PRE-2009 NQF LEVEL NQF LEVEL STATUS END DATE PRIMARY OR DELEGATED QA FUNCTIONARY
    Core  96402   National Certificate: Hot Water System Installation  Level 2  NQF Level 02  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. Africa International Training Facilities T/A AITF (BREDELL) (TP) 
    2. BELCOMEC TRAINING 
    3. CLEAN HEAT ENERGY SAVING SOLUTIONS (PTY) LTD 
    4. INDUSTRIES EDUCATION & TRAINING INSTITUTE 
    5. PCD College cc 
    6. Schoolboy Training Centre 



    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.