10
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
®
Premier Loline solar water heater is designed for the solar collectors to be roof mounted and
the solar storage tank to be installed at ground or floor level. The solar storage tank is suitable for outdoor
installation only and with either SPA2000 or CSA2007 solar collectors. The system is suitable for installation
in areas subject to frost or freeze conditions. Freeze conditions occur below 6°C.
SOLAR OPERATION
The Rheem Premier Loline solar water heater has its vitreous enamel lined solar storage tank installed at
ground or floor level, remotely from the solar collectors. This water heater is a closed circuit solar hot water
system with a heat exchanger in the solar storage tank.
The heat exchanger is filled with closed circuit fluid and is connected to the solar collectors by insulated copper
pipe work forming a closed circuit. The closed circuit fluid is a solution of a blue, non-toxic food grade propylene
glycol concentrate mixed with water. The closed circuit concentrate is used to lower the freezing temperature
of the closed circuit fluid and provides protection against freezing.
As the sun heats the solar collectors, the increase in temperature activates the pump. The pump switches on
whenever the solar collectors are hotter than the water in the tank and the water requires heating. The pump
moves the closed circuit fluid from the solar storage tank heat exchanger through an insulated copper pipe to
the solar collectors to be heated by the sun’s energy and then back to the heat exchanger. Heat transfers from
the closed circuit fluid in the heat exchanger to the water stored in the solar storage tank.
This process continues while solar energy is available and until the water in the solar storage tank reaches a
temperature of approximately 75°C. The pump is then deactivated and the closed circuit fluid in the solar
collectors and solar pipe work drains back into the heat exchanger in the solar storage tank.
The closed circuit provides protection to the solar collectors and solar circuit in harsh water areas. The drain
back principle provides protection to the system in freezing conditions.
Automatic safety controls are fitted to the water heater to provide safe and efficient operation.
GAS BOOSTING OPERATION
Water stored in the solar storage tank passes through the in-series gas
booster when a hot tap is opened. The gas booster is for heating water at
times of low solar energy gain, such as during cloudy or rainy weather, or
during colder months.
Solar heated water can reach temperatures up to 75°C in the solar storage
tank. When the solar heated water temperature is 58°C or higher, the flow
passes through the in-series gas booster without boosting.
The gas booster operates automatically. When the solar heated water
temperature is below 58°C, the gas booster heats the water to its preset
outlet temperature setting.
The heat produced by the burner is transferred to the water through the
heat exchanger. The water is heated to a constant temperature by the
automatic adjustment of the gas supply to the burner to suit the water flow
rate. The gas burners extinguish when the hot tap is closed.
Automatic safety controls are fitted to the water heater to provide safe and efficient operation.
