Rheem 864 Series Owner's Manual And Installation Instructions page 93

PRESET OUTLET TEMPERATURE SETTING
The factory preset outlet temperature setting of the water heater is:

864 series

866 series
If a temperature controller is connected to the water heater, this will override the preset outlet temperature
setting and the maximum temperature setting will be:
Maximum Outlet Temperature
Kitchen controller connected
Bathroom controller only connected
It is usually not necessary to adjust the factory preset outlet temperature setting of the water heater, unless
the customer has a particular requirement for this to be done or it is to be installed as an in-series gas booster
to a solar water heater.
"To Check or Adjust the Preset Outlet Temperature Setting"
Refer to
adjust the preset outlet temperature setting of the water heater.
Gas Booster for a Solar Water Heater
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.
It will be necessary to check and if required to adjust the preset outlet temperature setting of the continuous
flow water heater when:

it is installed as an in-series gas booster to a solar water heater

it is an existing continuous flow water heater and a solar water heater is then installed.
Notes:

Consideration must be given to the delivery temperature to any ablution and public areas such as a
bathroom, ensuite or public amenities. Refer to
Two Temperature Zones Using A Temperature Limiting Device"
 The 866 series water heater, marked "THIS APPLIANCE DELIVERS WATER NOT EXCEEDING 50°C IN
ACCORDANCE WITH AS 3498" on the front panel, must not be installed as an in-series gas booster to
a solar water heater, as water temperature greater than 50°C can be delivered from the water heater
contravening its compliance to AS 3498.
TO CHECK OR ADJUST THE PRESET OUTLET TEMPERATURE SETTING
The temperature settings will be displayed on the LED display. The preset outlet temperature settings are:

864 series

866 series
It is necessary to have the electrical supply to the water heater switched on during stages of checking or
adjusting the preset outlet temperature setting procedure.
60°C – AU, 55°C – NZ
50°C
60°C – AU, 55°C – NZ
"Hot Water Delivery"
38°C, 40°C, 42°C, 43°C, 45°C, 50°C, 55°C, 60°C*, 70°C, 75°C
* AUS – 60°C is a preset outlet temperature setting for Australian models only.
38°C, 40°C, 42°C, 43°C, 45°C, 50°C
93
864 series 866 series
50°C
on page 93 to check or if required to
on page 48 and to
on page 49.
COMMISSIONING
50°C
50°C
"Schematics of