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ABOUT YOUR WATER HEATER
9
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 bathroom
and ensuite when a Rheemglas 49 series water heater is installed. This will keep
the water temperature below 50°C at the bathroom and ensuite. The risk of scald
injury will be reduced and still allow hotter water to the kitchen and laundry.
A RheemPlus 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 a RheemPlus 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.
THERMOSTAT
The thermostat automatically controls the electricity supply to the heating unit 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.
TEMPERATURE ADJUSTMENT
A Rheemglas 49 series or RheemPlus 421 series water heater features a
tradesperson adjustable thermostat. This requires a licensed electrical worker to
make any temperature adjustments. The thermostat on a 080 to 400 litre model
(bottom thermostat on twin element models) has a maximum temperature setting
of 70°C and a minimum temperature setting of 60°C. The top thermostat on a
twin element model has a fixed setting of 60°C and cannot be adjusted.
We advise you to have a licensed electrical worker adjust the thermostat to the
lowest temperature setting that meets your needs, especially if there are young
children or elderly people in your home. Refer to “Hotter Water Increases The
Risk of Scald Injury” on page 9.
A RheemPlus water heater is temperature limited to 50°C at the hot water outlet.
The minimum thermostat setting should be 65°C to assist in the specified
operation of its temperature limiting device. Increasing the thermostat setting will
not increase the outlet temperature but will provide more hot water capacity.
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