Thermann Owner’s Manual
4 Star Gas Hot Water Heater
12
H4127 Rev. B
Owner’s Information
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.
DO NOT
place articles on or against
this appliance.
DO NOT
use store chemicals or
flammable materials, or spray aerosols
near this appliance.
DO NOT
operate with panels or covers
removed from the appliance.
Water Quality
Your thermann 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 Reece
branch.
the saturation index (sI) is a measure
of the corrosiveness or carbonate
scaling potential of water. negative sI
indicates corrosive water that is non-
scaling. the more negative the sI the
more corrosive the water. Conversely,
a more positive sI indicates a greater
potential for scaling. If the sI is greater
than 0.40 an expansion control valve
should be fitted as shown in the
diagram on page 6.
