Rheem 701 Owner's Manual And Installation Instructions page 21

copper). This pipe must have a continuous fall, not exceeding 3 metres in length and
or contain no more than 4 bends (refer to figure 2).
WARNING
Serious damage can occur to person or property if incorrect material is used and
the overflow/vent pipe degrades whilst in use.
WARNING
If the site situation requires an overflow/vent pipe exceeding 3 metres in length,
then a tundish will be required for the overflow/drain discharge. The drain pipe
work must not exert a pressure of more than 1 metre of head on the Rheem
boiling unit (refer to figure 2). During normal operation of the BWU, the
overflow/vent connection may discharge small quantities of steam and
condensate, so it is ESSENTIAL that the drain pipe is attached to the overflow
vent connection. This drain pipe must discharge to waste at a point where no
scald injury, nuisance, inconvenience, and or damage is caused to people or
property in the immediate vicinity.
WARNING
Ensure the overflow/vent line remains open because the BWU tank is not
designed to be pressurised. Where freezing may occur, protect the pipes and
install an air break. It is recommended to install an air break in the overflow/vent
drain line, no more than 300 mm from the BWU. Also it is important to connect
the overflow/vent and water inlet correctly. Incorrect connection of pipe work
may damage the unit.
DRAINING
To drain 3-25L models, turn unit off and open tap until no water flows out. Remove
unit from wall and tip over with tap open until unit is empty. For 40L units, a drain
plug is accessible from the bottom of the unit (note switch unit off before draining)
WARNING
Before draining the unit, ensure the appliance has been switched off, and water
is not hot enough to scald.
IMPORTANT
Installation and maintenance of the Rheem Boiling Water unit shall be carried out by
a qualified service person. In Australia phone Rheem service on 131 031, in New
Zealand phone your nearest Rheem Service Centre on 0800 657 335.
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