UK - Manual installation, use and maintenance.
210-0203_Libretto_SX-ind_ATI_2021-02_GB.docx
16
Ed 2021-02
16.
HYDRAULIC CONNECTIONS
The connection to the water mains must be made with a G 3/4 "pipe for the SX160 model or G 1-1 / 4" for the rest of the
models. The cold water inlet is identified by the blue ring, while the hot water outlet is identified by the red ring).
HYDRAULIC COMPONENTS TO BE MANDATORY INSTALLED (NOT INCLUDED)
A.
T-shaped drain cock
B.
Expansion vessel with a capacity of not less than 5% of the contents of
the appliance.
C.
Chemical treatment: <25 ° F polyphosphate dispenser or softener,
≥25 ° F softener.
D.
Pressure reducer (for inlet water with pressure ≥ 600 kPa).
E.
Filter to eliminate water impurities.
F.
Check valve.
G.
Shut-off valve.
H.
Shut-off valve.
Respect the following water parameters, as required by Legislative Decree. 31 of February 2, 2001 (implementation of Directive
98/83 / EC relating to the quality of water intended for human consumption):
1.
Total hardness: between 10 ° F and 25 ° F.
2.
PH: between 6 and 8
3.
Chlorides: max 200 mg / l
4.
Conductivity: max. 2500 μS / cm
SAFETY VALVE
It drains the water from the tank in the presence of an internal pressure higher than 6.5 ± 0.5bar. The valve is sealed by the
manufacturer and tampering is prohibited: in case of tampering, the appliance warranty will not be recognized. If the valve
starts operating releasing water, it will be necessary to reduce the water inlet pressure in the appliance
