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REGULAR CARE
9
TEMPERATURE AND PRESSURE RELIEF VALVE
This valve is near the top of the water heater and is
essential for its safe operation. It is possible for the
valve to release a little water through the drain pipe
during each heating period. This occurs as the water
is heated and expands by approximately 1/50 of its
volume. Never block the outlet of this valve or its
drain pipe for any reason.
Operate the easing lever on the temperature and
pressure relief valve once every six months. It is
very important you raise and lower the lever
gently. If water does not flow freely from the drain
line when the lever is lifted, then the water heater should be checked by the Rheem
Service Department of their Accredited Service Agent.
Lift until
water flows
from the
drain line –
lower gently
Drain
Line
Water
Heater
The temperature and pressure relief valve should be checked for performance or
replaced at intervals not exceeding 5 years, or more frequently in areas where
there is a high incidence of water deposits (refer to “Water Supplies” on page 38).
EXPANSION CONTROL VALVE
In South Australia and Western Australia an expansion control valve is fitted to the
cold supply pipe to the water heater. Water will flow from its drain line during the
heating period. In scaling water areas, an expansion control valve should be fitted
to the cold water supply line to the water heater.
SAFETY
This water heater is supplied with a thermostat, an over-temperature cut-out, and a
combination temperature and pressure relief valve. These devices must not be
tampered with or removed. The water heater must not be operated unless each of
these devices is fitted and is in working order.
If the power supply cord or plug to the solar control unit is damaged, it must be
replaced by an authorised person, in order to avoid a hazard. Phone your nearest
Rheem Service Department or Accredited Service Agent to arrange for an
inspection.
The warranty can become void if relief valves or other safety devices are
tampered with or if the installation is not in accordance with these
instructions.
SOLAR COLLECTOR GLASS
Ensure the glass on your solar collectors is free of dust, salt spray or any other
matter, which may reduce the effectiveness of the solar collectors. Hose or wash
the collector glass with water and a soft brush when the solar collectors are cool.
Trim any trees which may shade the solar collectors.