TECHNICAL
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Table 3:
primary circulation loop pipes and fittings, the type
and quality of which shall comply with requirements of
SANS 10252-1.
4.1.3.3 An approved air source water heating heat pump
unit shall be used.
4.1.3.4 The storage water heater shall comply with
SANS 151.
4.1.3.5 Drain valves for water heaters shall comply with
SANS 1808-53.
4.1.3.6 All pressure control valves, expansion control
valves. Safety valve (temperature and pressure control)
and vacuum control valves, shall comply with
SANS 198.
Municipal by-laws: Technical requirements for a water
installation
39 (1) Notwithstanding the requirement that a certificate be
March 2020 Volume 26 I Number 01
issued in terms of section 36(3)(c), water installations must
comply with SABS Code 0252 Part 1 and all fixed electrical
storage water heaters must comply with SABS Code 0254.
A very high proportion (perhaps as much as 90%) of
municipalities have similar requirements.
The municipal water by-laws and SANS documents require that
the storage water heater must comply with SANS 151, and do
not mention class B requirements. The current SANS 151 does
not have a pass/fail criteria of class B, but a lower standing loss
requirement in Table 3. VC 9006 has two requirements, namely
that storage water heaters must comply with both SANS 151
and Class B. Therefore, the VC requirements are contradictory
until SANS 151 standing loss requirements are changed to
accommodate Class B requirements.
This means suppliers and installers that do not have
the necessary documentary evidence will be at risk of
prosecution by the NCRS. PA
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