Owner`s manual

2.12. Legionella
To kill legionella bacteria that may grow in potable water, AS 3498 requires that a storage
type water heater raise the water temperature at the hot water outlet to at least 60 degree C.
Therefore, we recommend that you leave your Solarstream switched on when you are away,
where it will typically turn on for a short run every several days to raise the water temperature
in the tank back to 60 degree C.
2.13. Scalding
To minimize scalding, especially for those people in high scald risk categories such as
young children, people with potentially incapacitating medical conditions and elderly
people, the Solarstream must be installed in accordance with the Australian Standard
AS/NZS3500.5. This will ensure that new hot water installations deliver tempered water
not exceeding 50 degree C to bathrooms and other locations used primarily for personal
hygiene purposes.
2.14. Pressure Limiting Valve
This water heater is designed for connection to a maximum water supply pressure of
500kPa. Where the mains pressure can exceed or fluctuate beyond this pressure, a
Pressure Limiting Valve complying with AS1357 must be fitted to the cold-water supply
line. This device must be installed after the stop / isolating valve and set at 500kPa.
Failure to install this device correctly will void your warranty and likely cause damage to
your water storage tank, plumbing components and fittings. It will also cause malfunctioning
of the PTR and ECV valves.
2.15. Cold Water Expansion Control Valve
A Cold Water Expansion Control Valve (ECV) should be fitted when the water supply has
a tendency to form scale. This type of water is referred to as hard water or scaling water
because calcium carbonate is deposited out of the water onto any hot metallic surface.
The fitting of an ECV is mandatory in WA, SA and some other areas of Australia for this
reason as per local regulations. If you don't have a water supply from a mountain reservoir,
then check this point with your plumber. The ECV should be rated at 700kPa, 200kPa more
than the Pressure Limiting Valve, and 150kPa less than the PTR Valve.
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AIR TO WATER HEAT PUMP WATER HEATERAIR TO WATER HEAT PUMP WATER HEATER
2.16. Stop / Isolating Valve
An approved stop / isolating valve, non-return valve, line strainer (optional but recom
mended), and union must be fitted between the main supply and the inlet socket of the
water storage tank.
2.17 Pressure and Temperature Relief Valve
The Pressure and Temperature Relief (PTR) valve is designed to relieve the increased water
pressure during the normal heating cycle of the water heater.
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If the heat pump stops operating within 5 minutes, then air is still likely trapped in the water
pipes. Power off the heat pump and open the hot water taps again for a few more minutes
to let the water flow out, then power up the heat pump again.
Follow the above process again if the heat pump does continue operating.
Alternately, remove the flat base plate from the heat pump underneath the curved corner
plate to reveal the water pump. Turn the centre screw to release air, then re-tighten and
replace the base plate.