COMMISSIONING
26
TO TURN OFF THE WATER HEATER
If it is necessary to turn off the water heater on completion of the installation, such as on a building site or
where the premises is vacant, then:
Close the gas isolation valve at the inlet to the water heater
Close the cold water isolation valve at the inlet to the water heater.
Drain the water heater if there is a risk of freezing conditions occurring (refer to “Draining The Water
Heater” on page 26).
Notes:
The 834 series water heater does not have a frost protection system.
Damage caused by freezing is not covered by the Rheem warranty (refer to “Terms of the Rheem
Warranty” on page 27).
DRAINING THE WATER HEATER
To drain the water heater:
Turn off the water heater (refer to “Turn Off The Water Heater” on page 26).
Open a hot tap (preferably the shower outlet).
Unscrew the two drain plugs, one each at the cold water inlet and hot water outlet, on the underside of
the water heater.
Water will drain from the water heater.
When water stops flowing from the water heater, close the hot tap.
Note: It is recommended not to screw the drain plugs back in, until the water heater is to be turned on again.
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