Rheem 864 Series Owner's Manual And Installation Instructions page 5

HOW HOT SHOULD THE WATER BE?
The water heater may be installed with one or more user adjustable temperature controllers, which allow you
to choose the most suitable temperature for your hot water needs (refer to
If a controller is not installed, the water heater heats the water to the preset outlet temperature setting. The
factory preset outlet temperature setting is:

864 series

866 series
The preset outlet temperature setting of this water heater cannot be adjusted by the householder. The
Note:
setting can only be adjusted by the installer, Rheem Service or their nearest Accredited Service Agent / Centre.
Australia
maximum Kitchen controller
temperature setting 864 series
maximum recommended supply
temperature to bathrooms and ensuites.
maximum Bathroom controller
temperature setting 864 series.
maximum Kitchen and Bathroom
controller temperature setting
866 series.
minimum Kitchen and Bathroom
controller temperature setting
Note: Australian Standard AS 3498 and New Zealand Building Code Clause G12 requires that a water heater
provides the means to inhibit the growth of Legionella bacteria in potable water. When this water heater is
used as an in-series booster for a solar water heater it can satisfy these AS 3498 and Clause G12 requirements
provided it is energised, the booster preset outlet temperature setting is 70°C, and that a remote temperature
controller is not used.
Warning: Temperature controllers must not be fitted to this water heater (864 series) if it is installed as an
in-series gas booster with a solar water heater system because water at a temperature much higher than the
controller setting can be delivered. If a solar water heater has been installed to an existing water heater
installation, then all controllers must be disconnected and removed.
If this water heater is installed as part of a solar water heater system, the system can deliver water at
temperatures from 58°C up to 80°C and possibly higher depending upon the model of solar water heater
installed.
HOTTER WATER INCREASES THE RISK OF SCALD INJURY
This water heater can deliver water at temperatures which can cause scalding. Check the water temperature
before use, such as when entering a shower or filling a bath or basin, to ensure it is suitable for the application
and will not cause scald injury.
We recommend and it may be required by regulations that an approved temperature limiting device be fitted
into the hot water piping to the bathroom and ensuite when an 864 series water heater is installed. This will
keep the water temperature below 50°C – AU or 55°C – NZ at the bathroom and ensuite. The risk of scald
injury will be reduced and if no controllers are installed and the preset outlet temperature setting has not been
adjusted below 55°C or if a Kitchen controller is installed, still allow hotter water to the kitchen and laundry.
An 866 series water heater will not deliver temperatures exceeding 50°C, in accordance with AS 3498. There
is no need to fit a temperature limiting device to satisfy the requirements of AS/NZS 3500.4, if an 866 series
water heater is installed in an application where 50°C is the maximum permissible hot water temperature at
the outlet of a sanitary fixture used primarily for personal hygiene purposes.
60°C – AU 55°C – NZ
50°C
5
ABOUT YOUR WATER HEATER
"Temperature Control"
New Zealand
maximum Kitchen controller
temperature setting 864 series.
maximum recommended supply
temperature to bathrooms and ensuites.
maximum Bathroom controller
temperature setting 864 series
minimum Kitchen and Bathroom
controller temperature setting
on page 11).