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ABOUT YOUR WATER HEATER
WATER HEATER APPLICATION
This water heater is designed for use in a single family domestic dwelling for the purpose of heating potable
water. Its use in an application other than this may shorten its life.
MODEL TYPE
®
Your Rheem
solar Hiline™ water heater is designed for both the solar collectors and the solar storage tank
®
to be roof mounted. The solar storage tank has a Colorbond
jacket and is suitable for installation with Rheem
NPT 200 solar collectors.
A 52D series system does not have freeze protection. The system is not suitable for installation in areas subject
to frost or freeze conditions. Freeze conditions occur below 6°C. The system has NO WARRANTY for freeze
"Terms of the Rheem Warranty"
damage. Refer to
on page 4.
This water heater is designed to be installed as an electric boosted solar water heater with its booster heating
unit connected to a power supply, however it may be installed with an in-series continuous flow or storage
booster water heater.
If this water heater is installed with an in-series booster, then the electric booster heating unit will not be
connected to a power supply and the references to the electric booster heating unit, thermostat and boosting
controls in this Guide will not be applicable to the installation. For information relating to the function and
operation of the in-series booster, refer to the Owners Guide and Installation Instructions supplied with the
booster water heater.
SOLAR OPERATION
The solar water heater uses the thermosiphon principle, without
the need for a pump, circulator or sensors. It works on the simple
scientific fact that hot fluid rises. The solar collector's low-iron
content solar glass allows more solar energy from the sun to pass
through and be used to heat the collector's absorber plate than
conventional glass. This solar energy heats the water in the
absorber plate which is then transferred to the storage tank.
The Rheem Hiline 52D series system is an open circuit solar water
heater with its vitreous enamel lined solar storage tank installed on
the roof directly coupled to the solar collectors. An open circuit
system has a collector circuit which is directly connected to the
potable water in the solar storage tank by copper pipe work.
As the water in the solar collector gains the solar energy from the absorber, the increase in temperature causes
the water to rise through the collector and the solar hot pipe into the solar storage tank. As the heated water
enters the storage tank, cooler water from the bottom of the solar storage tank flows down the solar cold pipe
into the solar collectors to be heated by the solar energy. This process continues while solar energy is available
and the water in the solar storage tank requires heating.
Automatic safety controls are fitted to the water heater to provide safe and efficient operation.
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 solar Hiline storage tank will be 180 litres
(300 litre model), or 90 litres (180 litre model).
The water heater is more 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
"Booster Control"
boosting periods and help maximise solar savings. Refer to
on page 12.
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