Rheem GAS DOMESTIC OUTDOOR WATER HEATER - Manual (Page 29)

LIGHTING THE WATER HEATER
29
CLOSE DOWN PROCEDURE
1. Turn the gas control knob to the
“ ·” position (pilot). This setting will
leave the pilot flame alight however
the main burner will not be able to
light.
2. Turn the gas control knob to the
" z" (off) position. This setting shuts
the gas control down completely.
DRAINING THE WATER HEATER
To drain the water heater:
•
Turn off the water heater (refer to “To Turn Off The Water Heater” on
page 25).
•
Close all hot water taps.
•
Operate the relief valve release lever - do not let the lever snap back or you
will damage the valve seat.
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.
•
Operate the relief valve again.
This will let air into the water heater and allow the water to drain through the
hose.