ABOUT YOUR WATER HEATER
12
Solar Monitor LED operation
The LEDs on the Solar Monitor, located on the side of the solar control unit, operate to show the operational
mode of the water heater. Refer also to
on page 15.
Mode
Green LED
Red LED
power on* > 48 hours power on* < 48 hours
Normal operation
rapid pulse
3 flashes
off **
Over-temperature operation
rapid pulse
3 flashes
off, or solid then off
Night Time Cooling operation
rapid pulse
3 flashes
off
Freeze Protection operation
rapid pulse
3 flashes
off
Standby mode
solid
slow pulse
off
Notes
* Power from the GPO to the solar control unit.
** In Normal Operation the red LED may emit a rapid pulse for a short period of time under certain
circumstances (refer to
on page 25).
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 amount of water heated by the raised booster heating unit of the Streamline solar storage tank is 220 litres
(410 model), 170 litres (320 model) or 140 litres (270 model).
The water heater is most suited for the booster heating unit to be connected to either a continuous, or a time
of use, or an extended Off-Peak (overnight and day) electricity supply. A timer can also be used to control the
boosting periods and help maximise solar savings. Refer to
on page 14.
The booster heating unit may be connected to an Off-Peak (overnight) electricity supply, however this will only
allow the booster to heat the water overnight. If this type of connection is considered, care must be taken to
ensure there is sufficient boost capacity to meet
the household’s full day and night’s hot water supply during
periods of no or low solar gain, particularly in cold weather.
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 front cover. If required, the water is heated
automatically to the thermostat setting by the booster heating unit when power is available.
HOW HOT SHOULD THE WATER BE?
The solar control unit will circulate water through the solar collectors until a
temperature of 70°C to 75°C is reached during normal operation.
During periods of low solar energy gain, the water temperature can be boosted
by the thermostatically controlled electric booster heating unit. Refer to
on page 14.
Solahart 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 or an EZiSET kit 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.
typical maximum
temperature from
solar gain
maximum
recommended
supply
temperature to
bathrooms and
ensuites
minimum
booster setting
maximum
booster setting
Содержание Streamline 270
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