Rheem Water Heater - Manual (Page 74)

DRAINING THE WATER HEATER
orage Tank
•
•
• r inlet to the solar storage tank and attach a
ugh the
He
To
•
•
The solar monitor located on the lower front cover is connected to the solar
e ribbon cable has sufficient length to
is
area in
front of the solar storage tank.
At the completion of this procedure, if the ribbon cable from the solar
monitor has been disconnected, reconnect it to the solar control module
prior to replacing the lower front cover (refer to
notes on page 73).
• Attach a 12 mm (½”) diameter clear hose to the heat exchanger drain valve
hose tail connection (refer to step 5 of
“Attach Closed Circuit Fluid Level
Hose” on page 59).
Solar St
To drain the solar storage tank:
Turn off the water heater (refer to “To Turn Off The Water Heater” on
page 73).
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 wate
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 thro
hose.
at Exchanger
drain the heat exchanger:
Switch off the electrical supply at the isolating switch to the water heater.
Remove the lower front cover from the solar storage tank.
control module by a ribbon cable. Th
enable the removal of the lower front cover and for it to be set to one side of
the opening without disconnecting the ribbon cable from the solar control
module.
The ribbon cable can be disconnected from the solar control module if it
necessary to remove the lower front cover completely from the work
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