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11
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.
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.
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.
!
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.
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.
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.
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.
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.
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