About Your Cylinder - Rinnai HJ Cooper Owner's Manual

About your cylinder

Water is heated by an electric element, or elements located in the cylinder. The
temperature of the water is controlled by an automatic thermostat that is set by
your installer, usually to 65 °C to disinfect the water for legionella
Safety messages
• Element cover
Do not remove the element
cover as this will expose
230 V wiring and must
only be removed by an
authorised person.
• Damaged components
If any component is
damaged, it must be
replaced by an authorised
person using Rinnai
replacement parts.
• Child supervision
Children should be
supervised to ensure they
do not play with any part of
the hot water system.
• Hot pipe work
Care should be taken not to
touch the pipe work from
the cylinder as this could be
very hot.
Safety devices
Your cylinder is fitted with a:
• Temperature & Pressure
and Relief (TPR) valve that
ensures the water remains
at a safe pressure and
temperature.
Legionella is a bacterium that can cause Legionnaires' disease―a severe form of pneumonia
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4 | Mains pressure indoor stainless steel cylinders: Owner and installer guide: 20132-D 04-15
Important
All cylinders have the potential to leak water. To minimise damage to
other areas of your home, ensure that your cylinder has been installed
with a drip tray—the person doing the installation is responsible for
LIMITED
doing this.
WARRANTY*
* Refer to the warranty terms and conditions in this guide for more information.
• Automatic thermostat
to maintain water
temperature.
• Temperature override
cutout for heating element.
In the case of a standard
cylinder (not installed in
a solar application), the
operation of the thermal
cutout can indicate a
dangerous situation. Do not
reset the thermal cutout
until the water heater has
been serviced by a qualified
person.
Do not operate the system
unless all the safety devices are
fitted and are in working order.
It is also important that you do
not tamper or remove any of
these devices.
Cylinder thermostat setting
Your cylinder thermostat has
been set with a temperature
setting to disinfect the water for
legionella.
Thermostat settings
must only be adjusted
IMPORTANT
by an electrician or
other suitably qualified
tradesperson.
.
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Hydrogen gas
If hot water is not used for two
weeks or more, a quantity of
hydrogen gas, which is highly
flammable, may accumulate in
the cylinder.
To dissipate safely, it is
recommended a hot tap
(non-electrical) be turned on
for two minutes at a sink, basin
or bath. During this procedure
there must be no smoking, open
flame, or any other appliance
operating nearby.
Turning the cylinder on/off
If you plan to be away for only a
few nights we suggest you leave
the system switched on. If it is
necessary to switch it off, when
switching back on, remember
that the cylinder will take time
to heat back up again.
Draining and filling the system
This normally occurs during
installation or servicing and
must be carried out by an
authorised person.