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35
DRAINING THE WATER HEATER
To drain the water heater:
• Open a hot water tap and allow the water to run for five minutes immediately prior to draining the
solar storage tank.
This will assist in the transfer of any high temperature water in the solar collector(s) to the solar
storage tank.
• Close the hot water tap.
Warning: Exercise care, as water discharged from the solar storage tank may be of a very high
temperature.
• Turn off the water heater (refer to
“To Turn Off The Water Heater” on page 33).
• 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 4 way tee and attach a hose.
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.