Rheem XWELL XC-10 Owner's Manual And Installation Instructions page 4

SAFETY, WARNINGS AND PRESSURE RELIEF VALVE
Do not use an upward force from underneath the water heater. Pushing the water

heater from underneath may cause it to come loose from its mounting brackets
and fall off the wall.
This water heater is intended to be permanently connected to the water mains

and not connected by a hose-set.
The water heater is supplied with a pressure relief valve with a pressure rating of

800 kPa. If the mains supply pressure exceeds 640 kPa, a pressure limiting valve
must be installed.
For continued safety of this water heater it must be installed, operated and

maintained in accordance with the Owner's Guide and Installation Instructions.
Servicing of a water heater must only be carried out by qualified personnel. Phone

Rheem Service or the nearest authorised Service Agent.
Only a person qualified to install or service a water heater should drain the water

heater, if this is required.
Do not modify this water heater.

PRESSURE RELIEF VALVE
The pressure relief valve is located at the cold
water inlet and is essential for the water
heater's safe operation. It is possible for the
valve to discharge a quantity of water through
the drain line during each heating period, if a
non-return valve is installed on the cold water
line to the water heater.
Warning: Never block the outlet of the
valve or drain line for any reason. A pressure
relief valve drain must be left open to
atmosphere, be installed in a continuously
downward direction and in a frost-free
environment.
User Maintenance: The easing lever on the
pressure relief valve must be operated once
every six (6) months to clear any deposits and
ensure the valve and its drain line are not
blocked. It is very important the lever is
raised and lowered gently. Refer to "User
Maintenance Every Six Months" on page 8.
Warning: Failure to operate the easing lever on the pressure relief valve once
every six (6) months may result in the water heater cylinder failing.
cold water
inlet
4
lift until water
flows from the
drain line –
drain
lower gently
outlet