Owner’s Manual
25L and 50L Electric Storage Water Heaters
7
RIN3699 023334 Rev. A
Safety
This appliance is not intended for use
by persons (including children) with
reduced physical, sensory or mental
capabilities, or lack of experience and
knowledge, unless they have been given
supervision or instruction concerning
use of the appliance by a person
responsible for their safety.
Children and animals should be
supervised to ensure that they do not
interfere with the appliance.
Filling The Water Heater
Open all hot water taps. Open isolating
valve at the cold water inlet slowly and
allow water heater to fill until water flows
through the system. Close each hot
water tap after the air is expelled from
its line. As noted previously power is not
to be turned on until the water heater is
filled with water.
Water Quality
Your Rinnai water heater has been
manufactured to suit water conditions of
most Australian metropolitan supplies.
Please note that harsh water supplies
can have a detrimental effect on the
water heater and its life expectancy. If
you are unsure about your water quality
you can obtain information from your
local water supply authority.
The water heater is designed for use
in areas where the Total Dissolved
Solids (TDS) content of the water
supply is less than 2500 mg/L. In areas
where the TDS exceeds 600mg/L it
is possible that the magnesium alloy
anode (supplied in the heater) may
become over reactive. To alleviate this,
the magnesium alloy anode should be
replaced with an aluminium alloy anode,
available from your local Rinnai supplier.
Water can also be very corrosive, the
measure of this is the saturation index.
If the water saturation index is greater
than 0.40, an expansion control valve
should be fitted. If the index is greater
than 0.80, the water heater installed
should be a Hard Water Model. Please
consult our Service Department for
advice if required.
Caution
If the water heater is left in an operating
condition and unused for two weeks or
more, a quantity of hydrogen (which is
highly flammable) may accumulate in the
top of the water cylinder. To dissipate
this gas safely it is recommended that
a hot tap be turned on for several
minutes at a sink, basin or bath, but not
a dishwasher, clothes washer or other
appliance. During this procedure there
must be no smoking, open flame or
any other electrical appliance operating
nearby. If hydrogen is discharged
through the tap it will probably make an
unusual sound as with air escaping.
Where the water heater is not
installed in accordance with the listed
advice, the water heater will not be
covered by the Terms of Warranty.
Operating Instructions
