ABOUT YOUR WATER HEATER
5
ELECTRIC BOOSTING
Water stored in the solar storage tank can be heated by an electric booster heating unit. The booster heating
unit is for heating the water at times of low solar energy gain, such as during very cloudy or rainy weather, or
during the colder months. The solar Hiline water heater is suitable for the heating unit to be connected to
either a continuous, or a time of use, or an extended Off-Peak (overnight and day) or an Off-Peak (overnight)
electricity supply.
The booster heating unit is controlled by an electric thermostat. The thermostat and its over temperature
energy cut out are mounted on the solar storage tank behind the side cover. The water temperature is
automatically controlled to the thermostat setting when the booster heating unit is energised.
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
21, 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 is fitted with a Rheem Sunstat
®
valve which
limits the solar heated water to a maximum of approximately
75°C.
During periods of low solar energy gain, the water temperature
can be boosted by the thermostatically controlled electric booster
heating unit. Refer to
“Booster Control”
on page 7.
Rheem recommends the thermostat is set at 60°C to maximise
solar contribution.
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.
typical maximum temperature
from solar gain
maximum booster setting
maximum recommended
supply temperature to
bathrooms and ensuites
minimum booster setting
Содержание Solar Hiline Water Heater
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