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TEMPERATURE 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 line during each
heating period. This occurs as the water is heated and
expands by approximately 1/50 of its volume.
Continuous leakage of water from the valve and its drain
line may indicate a problem with the water heater (refer to
"Temperature Pressure Relief
page 19).
Warning: Never block the outlet of this valve or its
drain line for any reason.
Operate the easing lever on the temperature pressure
relief valve once every six (6) months. Refer to
Maintenance Every Six Months"
important the lever is raised and lowered gently.
Warning: Failure to do this may result in the water
heater cylinder failing.
Warning: Exercise care to avoid any splashing of
water, as water discharged from the drain line will be hot.
Stand clear of the drain line's point of discharge when
operating the valve's lever.
If water does not flow freely from the drain line when the
lever is lifted, then the water heater must be checked.
Phone Rheem Service or their nearest Accredited Service
Agent to arrange for an inspection.
The temperature pressure relief valve should be replaced at intervals not exceeding five (5) years, or more
frequently in areas where there is a high incidence of water deposits (refer to
EXPANSION CONTROL VALVE
In many areas, including South Australia, Western Australia and scaling water areas, it is mandatory an
expansion control valve is fitted to the cold water line to the water heater. The expansion control valve may
discharge a small quantity of water from its drain line during the heating period instead of the temperature
pressure relief valve on the water heater.
Operate the easing lever on the expansion control valve once every six (6) months. Refer to
Maintenance Every Six Months"
water does not flow freely from the drain line when the lever is lifted, then the water heater should be checked
by Rheem Service or their nearest Accredited Service Agent. The expansion control valve should be checked
for performance or replaced at intervals not exceeding five (5) years, or more frequently in areas where there
is a high incidence of water deposits.
HOUSEHOLD MAINTENANCE AROUND THE SOLAR STORAGE TANK
Care should be taken when conducting general household maintenance, such as lawn mowing and grass
cutting, around the solar storage tank. Careless use of devices such as a whipper snipper could damage or
cut a sensor lead or electrical cable.
If a sensor lead or electrical cable is damaged or cut, solar contribution may not be achieved. In addition, if the
electrical cable has been damaged or cut, wiring may be exposed leading to a dangerous situation.
On a regular basis, inspect around the water heater for insect infestations, such as ants. Insects may look for
a warm place to nest, particularly in wet weather. Insects encroaching into or nesting in the water heater and
the solar control unit can interfere with the operation of the water heater and also damage components. Spray
insecticide around the base of the water heater if necessary to rid the area of insects.
Valve Running"
on
"Minor
on page 11. It is very
on page 11. It is very important the lever is raised and lowered gently. If
13
MAINTENANCE REQUIREMENTS
lift until water
flows from the
drain
drain line –
line
lower gently
"Water Supplies"
water
heater
on page 14).
"Minor
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