Ariston Nuos Split Flex 150L Manual page 34

compliant with said standard; it must be calibrated to a maximum pressure
of 0.7 MPa, including at least a cock, check valve, safety valve and hydraulic
load cut-out.
14. It is normal that water drips from the overpressure safety device or from the
EN 1487 safety unit when the appliance is heating. For this reason one must
install a drain, open to the air, with a continuously downwards sloping pipe,
in an area not subject to subzero temperatures. A condensate drain should
also be connected to the same pipe with a special coupling.
15. Make sure you drain the appliance when it is out of service in an area subject
to subzero temperatures. Drain as described in the appropriate chapter.
16. 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 thermostatic mixer valve on the water
delivery line.
17. Do not leave flammable materials in contact with or in the vicinity of the
appliance.
18. The appliance is not equipped with batteries, but if you were to use them
they must be removed and put into a specific container before disposing of
the appliance. The appliance must be disconnected from the power supply
before removing the batteries.
Heat pump water heater – SAFETY WARNINGS
32