Owner’s Manual – Gas Storage
12
H3958 026271 Rev. A
How Does My System Work?
The Dux water storage tank is used
to store the heated water ready
for household use. It has a high
temperature vitreous enamel lining to
provide long life, and a high density
polyurethane insulation to ensure
minimal heat loss.
Never turn the gas supply off during
normal use
.
This Dux water heater is designed such
that there is little to do regarding system
maintenance other than that detailed in
this
Owner’s Manual
.
Personally inspecting or servicing any
part of the system is not recommended.
Anode
The recommended time after installation
when the anode should be inspected by
an authorised person is 5 years.
After every 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 every 3 years.
Six Monthly Service – By Owner
Operate the Pressure & Temperature
Relief Valve for approximately 10 seconds
by operating the easing lever on the
valve to ensure water is relieved to waste
through the relief drain pipe. Check to
ensure the valve closes correctly.
Five Year Service – By Authorised
Personnel Only
The five year service must be carried
out by a licensed tradesperson. It is
recommended that this service be
carried out by your local Dux agent.
The service should include the following:
• Replace the Pressure &
Temperature Relief Valve.
• Replace the anodes (in areas of
harsh or adverse water conditions, a
more frequent check of the anodes
is recommended).
• Flush the water heater by doing the
following:
i. Turn off gas supply.
ii. Turn off the cold water supply to
the water heater at the isolating
valve.
iii. Gently operate the easing lever
on the Pressure & Temperature
Relief Valve to release the
pressure in the water heater.
iv. Disconnect the cold water inlet
union to the heater and attach a
drain hose.
System Maintenance
502
422
B
C
A
Access to
Anode
