11
I10_092-01 • SILOX S_EN
P
roduct
I
nstallatIon
Safety Instructions and Recommendations
for the Hydraulic Circuits
î
Always fi ll and pressurise
the inner tank (DHW) before
fi lling the outer (primary)
tank. Failure to comply may
damage the inner tank.
î
If the supply pressure from the water
network is higher than 8 bar, make sure
to install a pressure reducing valve.
î
Verify the water quality of the network
according to the requirements defi ned
in this manual.
î
In case inhibitors are used in the sys-
tem, consult your AIC representative
for the product suitability.
î
Any antifreeze used in the primary cir-
cuit must comply with Public Hygiene
Regulations and must be non-toxic. A
food-grade Propylene Glycol formulat-
ed with a corrosion inhibitor is recom-
mended.
î
Consult your AIC representative to deter-
mine the compatibility of the antifreeze
and additive products with the appliance
materials.
Make sure that the DHW circuit is provid-
ed with a safety group and an expansion
vessel that are appropriate for the appli-
ance power and the system size, and the
increase in temperature and pressure.
î
Using antifreeze in the primary
circuit will reduce the heating
performance. The higher the
concentration of antifreeze in
the circuit, the lower the perfor-
mance.
î
The circuit diagrams are theoretical
representations that do not necessarily
include all the required safety devices.
Make sure to plan correctly your system
according to the applicable local regula-
tions and state-of-the-art practices.
i
î
The heating circuit is made
of carbon steel. There-
fore, re-oxygenation of the
CLOSED primary circuit is
not permitted.
î
It is recommended to install the follow-
ing devices in the system to prevent
primary circuit contamination and the
production of scale :
− Plate heat exchanger, combined
with a micro-pollutant separator,
which will protect the appliance from
any contaminants present in an old
heating system, where fi ttings and
pipes can be corroded. This is also
mandatory for open systems where
oxygen can penetrate the system
and cause corrosion.
î
In DHW circuits, there is a risk of bac-
teria Legionella development if tem-
perature is too low. Make sure that
DHW circuit is brought regularly to a
temperature higher than 60°C.
