Support in the inspection of refrigeration plants as per Unit Standard 262159 and knowledge of SANS10147 , SANS347 , the OHS Act and Regulations . C12 . Inspector - Refrigeration installations C13 . Inspector - Refrigeration associated with air conditioning C14 . Designer - Refrigeration and air conditioning - The card holder is an authorised designer of refrigeration and air conditioning installations . This category is aimed at those who design refrigeration systems and refrigeration related to air conditioning at different levels . A technical / engineering diploma or degree is a requirement .
Dawie , when referring to SANS 10147 we find :
• Competence training Training of persons to achieve competence in safety aspects of refrigerating systems and components , environmental and energy conservation requirements shall be governed by national schemes .
Where required by legislation or because industry considers it desirable , a certification scheme shall be implemented . This clause suggests methods by which a certification scheme will be achieved . These will be used if there are no other legislation or industry requirements .
• Category of competent persons As with the SAQCC categories we find here are three categories of competence levels , depending on the duties to be performed in SANS10147 : a . level A : Operation personnel ; b . level B : installation personnel and repair personnel ; c . level C : designers , commissioning personnel and inspectors .
Over and above the categories , SANS 10147 specifically states that persons working with refrigerants in Categories A3 and B3 must have received specialised training in the use thereof .
The SANS 10147 standard is inclusive of but exceeds the SAQCC gas safe handling of authorised refrigeration practitioner training . However , the SAQCC gas registration processes are inclusive of the SANS standard requirements as follows :
• Level A A person with competence in level A ( that complies with the minimum relevant national requirement ) shall be able to operate a refrigerating system safely with due regard to environmental requirements and energy efficiency without breaking into the refrigerant circuit .
The minimum requirements for theoretical knowledge and practical experience for level A shall be as follows : a . Knowledge of basic health and safety requirements . b . Legislation : Basic knowledge of the relevant national legislation and the Montreal Protocol on substances that deplete the ozone layer . c . National standards . Basic knowledge of this standard ( with particular clauses ) d . Basic knowledge and skills concerning : 1 . The handling of refrigerants ( knowledge only ), 2 . personal protective equipment ( how to use it ), 3 . leakage prevention of refrigerants ( measures to prevent leakage ), 4 . the refrigerating process , 5 . refrigerants , 6 . refrigeration components and equipment , 7 . electrical and control functions , 8 . maintenance , 9 . piping and instrumentation diagrams ( P and ID ), 10 . refrigerating systems , and 11 . energy conservation ( measures applied for energy efficiency ). e . Practical experience , for example in plant installation ,
• Level B
operation and maintenance .
A person with competence in level B ( that complies with the minimum relevant national requirement ( see foreword ) shall : a . Understand and be able to apply given specifications and piping and instrumentation diagrams ; b . understand and be able to apply requirements in this standard that concern health , safety , environmental protection and energy efficiency ; and c . understand and be able to apply , in a practical manner , safety measures for different refrigerants .
The minimum requirements for theoretical knowledge and practical experience for level B shall be as follows : a . Knowledge of health and safety requirements . b . Legislation : Detailed knowledge of the relevant national legislation ( see foreword ), and the Montreal Protocol on substances that deplete the ozone layer .
Control and safety devices shall not be operated by unauthorised persons ."
www . refrigerationandaircon . co . za RACA Journal I November 2022 33