Draining The Water Heater - Rheem 850 Series Owner's Manual And Installation Instructions

DRAINING THE WATER HEATER

Warning: Exercise care, as water discharged from the water heater may be
of a very high temperature.
To drain the water heater:

Turn off the water heater (refer to
page 41).

Close all hot water taps.

Operate the relief valve lever - do not let the lever snap back or you will
damage the valve seat. It is very important the lever is raised and lowered
gently.
Operating the lever will release the pressure in the water heater.

Undo the union at the cold water inlet to the water heater and attach a hose
to the water heater side of the union.
Let the other end of the hose go to a drain.

Open the relief valve by holding the lever in the raised position.
This will let air into the water heater and allow the water to drain through the
hose.
"To Turn Off The Water Heater"
46
on