How does SANS 10254:2017 impact on existing and new installations?

How does SANS 10254:2017 impact on existing and new installations?

By Patrick Gordon
Most of us know that SANS 10254 applies to all installations (new, maintenance, and repairs), but how does the new 2017 version impact on previously compliant installations?

We know that we must report all non-compliance, but to whom must we report such non-compliance installations?

SANS 10254 says the following:

On completion of the installation, a certificate of compliance from the professional body for plumbers registered in terms of the relevant national legislation (see foreword), shall be issued to the owner of the installation or to the body requiring such a certificate.

Here it says that such non-compliance must be reported to the owner of the installation, so we would have to go directly to the owner and not hand it to the tenant. The safety of the installation remains with the owner, even if he or she does not actually reside in the home.

The previous version said that all the geyser ancillaries had to be of the same pressure rating. It could be lower than the geyser rating but not higher. Now the law says:

The rated pressure of the system shall not exceed a static pressure of 600kPa (see SANS 10252-1) and the pressure control valves and expansion control valves used in the system shall have the same pressure rating. This pressure rating may be less than the rated pressure of the storage water heater but shall never exceed it.

NOTE: The T&P valve and the drain valve are an integral part of the storage water heater and are supplied with or fitted to the storage water heater as required by SANS 60335-2-21.

So now the law says that the pressure-reducing valve and the expansion relief valve should be of the same rating but that the T&P valve is viewed as an integral part of the geyser and should be of the same rating of the geyser.

When heat pump installations started, there were many different ways to connect such heat pumps to the geyser. This is no longer permitted, as SANS says:

When flow and return circulation pipes are connected to the water heater to and from heat pumps, the safety, performance, and warranty of the water heater shall not be compromised by modifying the water heater.

This restricts the connection of heat pumps to the geyser by way of non-invasive methods; that is, any reticulation and connection to the system must be done in such a way that no changes are made to the original geyser. The law thus requires us to issue a non-compliance notification on any older intrusive ways of connections.

There are many more changes, so please look out for the continuation in the next article.

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