Hydraulic Connections; Initial Start-Up - Ariston Nuos Evo 80 Instrucciones Para El Uso Y El Mantenimiento

4.4 Hydraulic connections

The two dielectric couplings (supplied with the product) must be applied to the inlet and outlet water pipes,
prior to perform the connection.
BEWARE! It is mandatory to fit a safety valve onto the appliance's water inlet
pipe.
The device must comply with the EN 1487:2002 standard and must have a
maximum pressure of 0.7 Mpa (7 bar). Moreover, it must at least include the
following components: a cut-off valve, a non-return valve, a control mechanism
for the non-return valve, a safety valve and a water pressure shut-off device.
Avoid over tightening the pressure safety device and do not tamper with it. It is normal for water to trickle
from the pressure safety device during the heating phase; for this reason, it is necessary to connect the
outlet, which must always be left exposed to the atmosphere, to a drainage pipe that slopes downwards and
towards an area not subject to frost. It is advisable to also connect the condensate outlet to the same pipe,
through the connection located on the lower side of the water heater.
residual hardness must not fall below 15°F.
4.5 Discharge of condensate
Ensure that the condensate water runs out in a suitable drain and make sure the discharge is made
without hindrance.

5. INITIAL START-UP

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in this event, the