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ABOUT YOUR WATER HEATER
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
22, a pressure limiting valve must be
fitted. The supply pressure should be greater than 350 kPa for true mains pressure operation to be achieved.
A minimum water supply pressure of 200 kPa is required to enable the solar circulator and solar circuit
system to operate effectively.
HOW HOT SHOULD THE WATER BE?
typical maximum temperature
The solar control unit will circulate water through the solar collectors
from solar gain
until a temperature of 70°C to 75°C is reached.
maximum booster setting
During periods of low solar energy gain, the water temperature can
be boosted by the thermostatically controlled electric booster
minimum booster setting
heating unit. Refer to
"Booster Control"
on page 6.
Rheem recommends the thermostat is set at 60°C to maximise solar
maximum recommended
contribution.
supply temperature to
bathrooms and ensuites
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 the electric
booster is energised for a sufficient period each day and the electric
booster thermostat setting is 60°C or higher.
If this water heater is installed with an in-series continuous flow gas booster, then this requirement of
AS 3498 can be satisfied provided the booster is energised, its preset outlet temperature setting is 70°C or
higher and a remote temperature controller is not used.
If this water heater is installed with an in-series storage booster, then this requirement of AS 3498 can be
satisfied provided the storage booster is energised and its thermostat setting is 60°C or higher.
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 this 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.
TEMPERATURE ADJUSTMENT
The water heater features a tradesperson adjustable thermostat. This requires a licensed tradesperson to
make any temperature adjustments. The thermostat has a maximum temperature setting of 70°C and a
minimum temperature setting of 60°C.
We advise you have your electrician adjust the thermostat to the lowest setting which meets your needs,
especially if there are young children or elderly people in the home. Refer to
"Hotter Water Increases the
Risk of Scald Injury"
on page 5.
5
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