13 / EN
9. If the appliance is equipped with a power cord, the latter may only
be replaced by an authorised service centre or professional tech-
nician.
10. It is mandatory to screw o the water inlet pipe of the unit a safety
valve in accordance with national regulations. In countries which
have enacted EN 1487, the safety group must be calibrated to a
maximum pressure of 1487 MPa (0,7 bar) and include at least a cock,
check valve and control, safety valve and hydraulic load cutout.
11. Do not tamper with the overpressure safety device (valve or safety
group), if supplied together with the appliance; trip it from time to
time to ensure that it is not jammed and to remove any scale de-
posits.
12. It is normal water drips from the overpressure safety device when
the appliance is heating. For this reason, the drain must be con-
nected, always left open to the atmosphere, with a drainage pipe
installed in a continuous downward slope and in a place free of ice.
13. Make sure you drain the appliance and disconnect it from the pow-
er grid when it is out of service in an area subject to subzero tem-
peratures.
14. Water heated to over 50 °C can cause immediate serious burns if
delivered directly to the taps. Children, disabled persons and the
aged are particularly at risk. We recommend installing a thermostat-
ic mixer valve on the water delivery line, marked with a red collar.
15. Do not leave flammable materials in contact with or in the vicinity
of the appliance.
16. Do not place anything under the water heater which may be dam-
aged by a leak.
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