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Relief Valve; To Fill The Water Heater - GE GG75T06ASK Use And Care Manual

Gas residential water heaters residential 60, 75 and 100 gallon
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Installing the water heater.
A new combination temperature and pressure relief valve, complying with the Standard for Relief Valves and
Automatic Gas Shut-Off Devices for Hot Water Supply Systems, ANSI Z21.22, is supplied and must remain in
the opening provided and marked for the purpose on the water heater. No valve of any type should be installed
between the relief valve and the tank. Local codes shall govern the installation of relief valves.
WARNING: The tank
must be full of water before
heater is turned on. The
water heater warranty does
not cover damage or failure
resulting from operation
with an empty or partially
empty tank. (Refer to the
Certificate of Limited
Warranty for complete
terms and conditions.)
10

Relief Valve

The pressure rating of the relief valve
must not exceed 150 PSI, the maximum
working pressure of the water heater as
marked on the rating plate.
The BTUH rating of the relief valve must
equal or exceed the BTUH input of the
water heater as marked on its rating plate.
Position the outlet of the relief valve above
a suitable open drain to eliminate
potential water damage. Piping used
should be of a type approved for hot
water distribution.

To Fill the Water Heater

Make certain that drain valve is closed,
then open the shut-off valve in the cold
water supply line.
Open each hot water faucet slowly to
allow the air to vent from the water
heater and piping.
A steady flow of water from the hot water
faucet(s) indicates a full water heater.
Condensation
Condensation can form on the tank when
it is first filled with water. Condensation
might also occur with a heavy water draw
and very cold inlet water temperatures.
Drops of water falling on the burner can
produce a sizzling or pinging sound, and
the water may also be seen beneath the
water heater.
This condition is not unusual, and will
disappear after the water becomes
heated. If, however, the condensation
continues, examine the piping and fittings
for possible leaks.
The discharge line must be no smaller
than the outlet of the valve and must
pitch downward from the valve to allow
complete drainage (by gravity) of the relief
valve and discharge line.
The end of the discharge line should not
be threaded or concealed and should be
protected from freezing. No valve of any
type, restriction or reducer coupling
should be installed in the discharge line.
Additional information on this subject
may be found at
www.rheem.com
under "Library," scroll down to the
Technical Service Bulletins 1400 Series
Section and choose Bulletin #1402.

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