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HOW YOUR WATER HEATER WORKS
10
The Rheem solar Loline system has its vitreous enamel lined solar storage tank
installed at ground or floor level, remotely from the solar collectors. As the sun
heats the water in the solar collectors the increase in temperature activates the
circulator. The circulator then moves the water from the solar collectors through an
insulated copper pipe to the solar storage tank. The circulator switches on
whenever the water in the solar collectors is hotter than the water in the tank.
Cooler water from the solar storage tank is circulated to the solar collectors to be
heated by the sun’s energy. This process continues while solar energy is available
and until the water in the solar storage tank reaches a temperature of
approximately 75°C.
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 19, a pressure limiting valve must be fitted. The supply pressure
should be greater than 350 kPa for true mains pressure operation to be achieved.
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 winter months.
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. The water temperature is
automatically controlled to the thermostat
setting when the booster heating unit is
energised.
The Optima models feature a user
adjustable thermostat, which allows you to
choose the most suitable boost
temperature for your hot water needs. It
has a minimum temperature setting of
60°C and a maximum temperature setting
of 75°C. The thermostat on the Rheemglas
models is tradesperson adjustable. It has a
minimum temperature setting of 60°C and
a maximum temperature setting of 70°C. It
can only be adjusted by an authorised
person. Automatic safety controls are fitted
to the water heater to provide safe and
efficient operation.