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FEATURE
We now move to SANS 10106 for a more detailed approach . Again , it is critical and essential that every plumber has the complete current version . Sure , it costs money , but imagine if your doctor stopped reading and knowing the law that pertains to him . Tell me the same principle does not apply to a plumber who must keep upto-date with ever-evolving technology . If you are running a business properly , the cost of acquiring such material must be part of your annual budget . IOPSA and PIRB offers webinars , some free , and those that aren ’ t are in depth and worth the money .
Every standard has normative references which are described as “ indispensable .” It is a moot point whether these are listed for information only or whether they are a must . Indispensable is defined as ‘ not subject to being set aside or neglected ’ and ‘ obligatory ’ or finally ‘ absolutely necessary ’.
The standard describes the requirements to cover preventing damage , manufacturer ’ s advice shall be followed , the instruction booklet given for in SANS 1397 shall be given to the homeowner / user of the solar water heater and very importantly 4.7 where any provisions of this standard cannot be applied , the installation shall comply with the details given in a rational design …”
Under Assembly the standard states that : The SWH shall comply with SANS 1307 .
Control components and drip trays comply with SANS 10254 , where water temperature supplied to terminal fittings is higher than the requirements of SANS 10252-1 , tempering valves that comply with SANS 1299 shall be used to achieve the requirements of 10252-1 .
Under the Operation and maintenance , repair , or replacement these are subject to SANS 1307 and SANS 10254 , respectively . The tone throughout is “ SAFE and EFFECTIVE ” operation , discharge and repairs easily done . Any non-compliance can be noted on the COC issued by the professional body , PIRB . As per 10252 all pipes must be insulated according to 10252-1 . The standard provides an annexure that indicates the ‘ usual freeze areas and resistance to freezing must be in accordance with ASTM E 1056 .
The solar collector 5.3 Before installation , a deemed to satisfy or rational design by a competent person must be provided . This section refers to the collector itself , orientation , outlet positioning supports , access to components for maintenance and repair .
*** The orientation is critical obviously and this is the solar collectors shall be true north with maximum allowed deviation toward East or West . Annexure A is part of the standard which outlines design considerations and positioning of the collectors .
The Storage Container 5.4 This section looks at the storage capacity , discharge pipes , drip tray positioning , secure fixing of container , conditions that could provide an opportunity for legionella to develop , temperature settings . ( It is worth mentioning the importance of understanding that a compliant installation will ensure less chance of legionella ’ s developing , whereas a non-compliant installation opens the door for this disease to run amok .)
Section 5.5 . Safety devices and functional control devices covers pressure control , flow control and safety devices e . g .,
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