Specifications

ABOUT YOUR WATER HEATER
5
HOW HOT SHOULD THE WATER BE?
The water heater heats the water to the preset outlet
temperature setting. The factory preset outlet temperature
setting is:
874 series 60°C
Water Star water saving function 70°C
Water initially discharged by this water heater at start-up
may be at a temperature of up to 70°C before the water
heater normalises to its preset outlet temperature
Note: The preset outlet temperature setting of this water
heater cannot be adjusted by the householder. The setting
can only be adjusted by the installer, Rheem Service or their
nearest Accredited Service Agent.
Warning: Temperature controllers must not be fitted to this water heater (874 series) because water at a
temperature much higher than the controller setting can be delivered.
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 874 series water heater is installed. This will
keep the water temperature from exceeding 50°C at the bathroom and ensuite. The risk of scalding will be
reduced, and still allow hotter water to the kitchen and laundry.
THERMOSTAT
The thermostat automatically controls the electricity supply to the heating unit of the cylinder so a constant
temperature is maintained. The thermostat and its protective over temperature cut out is mounted inside the
front cover of the water heater. There is no need to switch the water heater off when it is not in use, except
when you are on an extended holiday. The thermostat is fully automatic and power is only used when
heating is required.
The thermostat on this water heater has a fixed setting at 70°C. This cannot be adjusted.
WARNING
This water heater is only intended to be operated by persons who have the experience or the knowledge and
the capabilities to do so. This water heater is not intended to be operated by persons with reduced physical,
sensory or mental capabilities i.e. the infirm, or by children. Children should be supervised to ensure they do
not interfere with the water heater.
The water heater uses 240 Volt AC electrical power for operation of the control systems and the combustion
fan. The removal of the front panel will expose 240 V wiring. It must only be removed by a qualified person.
The power lead from the water heater must be plugged into a weatherproof general purpose outlet (GPO).
Take care not to touch the power plug with wet hands.
Water Star thermostat setting
(not adjustable)
maximum recommended supply
temperature to bathrooms and
ensuites.
factory preset temperature setting
874W series