Owner’s Manual – Dux Electric Boosted Solar
23
H3161 025248 Rev. D
Water Quality
Your Dux 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 the magnesium
alloy anode (supplied in the heater) may
become over reactive. To alleviate this,
the anode should be replaced with an
aluminium alloy anode, available from
your local Dux supplier.
Water can also be very corrosive,
measured by the saturation index. If the
water saturation index is greater than
0.40 an expansion control valve should
be tted and where 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.
System Maintenance
The solar water heater is designed such
that there is little to do regarding system
maintenance other than that detailed in
this Owner’s Manual. The components
in the solar side of the system do not
require maintenance.
Personally inspecting or servicing any
part of the system is not recommended.
Should you decide to personally inspect
the roof mounted system components,
it is essential that you use all safety
devices required to ensure your safety.
After each 5 years of operation you
should contact the local service agent
to replace all safety valves and anodes
to ensure continued system life and
operational safety. In locations where the
water has a Total Dissolved Solids (TDS)
content greater than 600 ppm, this
service is recommended each 3 years.
Six Monthly Service – By Owner
Open the PTR Valve for approximately
10 seconds by lifting the lever on the
valve to ensure water is relieved to waste
through the relief drain pipe. Lower lever
gently and check that it closes correctly.
One Year Service – By Authorised
Personnel Only
Inspect and clean pump turbine of any
foreign material (calcium or other).
If water quality is poor, carry out
inspection more frequently.
Owner’s Information
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