Technical data

4
ABOUT YOUR WATER HEATER
WATER HEATER APPLICATION
This water heater is designed for the purpose of heating potable water. Its use in an application other than
this may shorten its life.
MODEL TYPE
The Rheem
®
Heavy Duty Electric water heater model you have chosen
can be installed indoor or outdoor and is either a 50 litre or 315 litre
model. The 50 litre has three heating units and the 315 litre has either
three or six heating units.
Water is stored in a vitreous enamel lined steel cylinder and heated by
either 3 or 6 electric immersion heating units. The temperature is
controlled by thermostats. Automatic safety controls are fitted to the
water heater to provide safe and efficient operation.
MAINS PRESSURE
The water heater is designed to operate at mains pressure by
connecting directly to the mains water supply. If the mains supply
pressure in your area exceeds that shown on page 15, a pressure
limiting valve must be fitted. The supply pressure should be greater
than 350 kPa for true mains pressure operation to be achieved.
HOW HOT SHOULD THE WATER BE?
The water heater has a minimum temperature setting of 60°C and a
maximum recommended thermostat setting of 75°C – 613050, 77°C –
613315, 82°C – 616315. Refer to “Temperature Adjustment” on
page 5.
The water heater can provide hot water at sanitising temperatures.
To meet the requirements of the National Plumbing Standard the
temperature of the stored water must not be below 60°C.
If this water heater is installed as an in-series booster water heater as
part of a solar water heating system, to maximise solar contribution it is
recommended the thermostats are set at 60°C, unless sanitising
temperatures are required.
Note: AS 3498 requires that a water heater provides the means to
inhibit the growth of Legionella bacteria in potable water. This water
heater can satisfy this AS 3498 requirement provided it is energised
and the thermostat setting is 60°C or higher, including when it is used
as an in-series booster water heater for a solar water heater.
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 also be required by regulations that an approved temperature limiting device be
fitted into the hot water pipe work to the bathing and public areas when this water heater is installed. This will
keep the water temperature below the maximum permitted by AS/NZS 3500.4 to these areas. The risk of
scald injury will be reduced and still allow hotter water to the kitchen, laundry and other areas requiring
sanitising temperatures.
maximum recommended
thermostat setting
616315 – 82°C
613315 – 77°C
613050 – 75°C
minimum recommended
stored water temperature
and minimum thermostat
setting
maximum recommended
supply temperature to
bathrooms, ensuites and
public areas