Solahart Streamline Owner's Manual page 5

ABOUT YOUR WATER HEATER
WATER OUTLET TEMPERATURE
This water heater has two outlets. One is a hot water outlet and the other is a tempered water outlet. The
purpose of the hot water outlet is to deliver hot water at between 60°C and 75°C, usually for kitchen and
laundry use. The purpose of the tempered water outlet is to deliver water up to 50°C, usually for bathroom or
ensuite use.
The tempered water outlet is from the tempering valve, located under the pipe cover at the front of the water
heater immediately below the gas booster. The tempering valve is the brass valve with a white plastic cap.
The tempering valve mixes hot water from the solar storage tank and gas booster with cold water from the
mains supply and delivers tempered water from its outlet.
The hot water outlet is located above the tempering valve. Depending upon how the water heater was
installed, either both or only one of these outlets may have been plumbed to the hot water pipe work in the
premises.
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.
The supply pressure should be greater than 140 kPa for the rated flow and performance of the gas booster
to be achieved.
HOW HOT SHOULD THE WATER BE?
The solar control unit will circulate the closed circuit fluid through the
solar collectors until a temperature of approximately 75°C is
typical maximum
reached in the solar storage tank. During periods of low solar energy
temperature from solar gain
gain, the gas booster will boost the water temperature automatically
to its preset outlet temperature setting when required.
booster factory preset outlet
temperature setting
Note:
The preset outlet booster temperature setting of the gas
booster cannot be adjusted by the householder. The setting can
maximum recommended
only be adjusted by your nearest Solahart Dealer. The factory preset
supply temperature to
outlet temperature setting of the gas booster is 60°C.
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 has an in-series gas booster which can satisfy this AS 3498
requirement provided the gas booster is energised, the booster
preset outlet temperature setting is 70°C or higher and a remote
temperature controller is not used.
Warning: Temperature controllers must not be fitted to an in-series gas booster as part of a solar water
heater system 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 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.
The tempered water outlet from this water heater will not deliver temperatures exceeding 50°C, in
accordance with AS 4032.2 There is no statutory requirement to fit a supplementary temperature limiting
device after this outlet if this water heater is installed in other than an early childhood centre, school, nursing
home or a facility for young, aged, sick or disabled people.
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