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•
The lever on the temperature pressure relief valve and expansion control
valve (if fitted) requires to be operated every six (6) months to clear any
deposits and to ensure the valve and its drain line are not blocked.
"Relief Valves"
Refer to
Months"
on page 18.
•
Servicing of a water heater must only be carried out by qualified personnel.
Phone Rheem Service or their nearest Accredited Service Agent.
•
Only a person qualified to install or service a water heater can drain the water
heater, if this is required.
•
Do not modify this water heater.
RELIEF VALVES
Temperature Pressure Relief Valve
This water heater incorporates a temperature
pressure relief valve located near the top of the
water heater. This valve is essential for the water
heater's safe operation.
It is possible for the valve to discharge a quantity
of water through the drain line during each
heating period. This quantity should be equal to
approximately 1/50 of the hot water used, as
water expands by this volume when heated.
Expansion Control Valve
In many areas, including South 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 will discharge the quantity of water from its drain
line during the heating period instead of the temperature pressure relief valve as
it has a lower pressure rating.
Valve Operation
Continuous leakage of water from either valve and its drain line may indicate a
problem with the water heater. Refer to
Expansion Control Valve Running"
Warning: Never block the outlet of either valve or their drain lines for any
reason. A relief valve drain must be left open to atmosphere, and be installed in
a continuously downward direction.
SAFETY, WARNINGS, INSTALLATION NOTES
"Minor Maintenance Every Six
on page 9 and
"Temperature Pressure Relief Valve or
on page 24.
9
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