Rheem 610340 Owner's Manual And Installation Instructions page 15

INSTALLATION
HOT WATER DELIVERY
This storage tank can deliver water at temperatures which can cause scalding.
It is necessary and we recommend that a temperature limiting device be fitted between the storage tank and
the hot water outlets in any ablution and public areas such as bathrooms, ensuites or public amenities to
reduce the risk of scalding. The installing plumber may have a legal obligation to ensure the installation of this
storage tank meets the delivery water temperature requirements of AS/NZS 3500.4 so that scalding water
temperatures are not delivered to a bathroom, ensuite, or other ablution or public area.
Where a temperature limiting device is installed adjacent to the storage tank, the cold water line to the
temperature limiting device can be branched off the cold water line either before or after the isolation valve
and pressure limiting valve to the solar storage tank, but it MUST BE before the non-return valve. If an
expansion control valve is required, it must always be installed after the non-return valve and be the last valve
prior to the solar storage tank.
Warning: A non-return valve MUST BE installed on the cold water line to the solar storage tank AFTER
the cold water branch to a temperature limiting device.
If a combination isolation valve and non-return valve (duo or trio valve) is installed on the cold water line to
the storage tank and the cold water line to the temperature limiting device branches off after this valve, then a
second non-return valve must be installed between the cold water branch and the solar storage tank.
If a pressure limiting valve is installed on the cold water line to the storage tank and the cold water line to a
temperature limiting device branches off before this valve or from another cold water line in the premises,
then a pressure limiting valve of an equal pressure setting may be required prior to the temperature limiting
device.
Two Temperature Zones Using a Temperature Limiting Device
LEGEND
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