Time Setting; Information Menu - Ariston NUOS Manual

Heat pump water heater - OPERATING AND MAINTENANCE INSTRUCTIONS FOR THE USER
visualise the number of days that remain until the product's reactivation. Once this time has elapsed, the unit will
switch back to the previous mode. In the event of an electric connection with a day/night contactor or with HC-HP
signal, the number of nights of absence must be specified, taking into account that the product only operates during
the night. If, for example, you leave home on Saturday morning and return on Sunday of the following week, on
Saturday morning you should set the device to 8 days of absence in order to have hot water ready for your return
on Sunday.
• PROGRAM (P4 can be enabled on the installer's menu): two programs are available, P1 and P2, that can be
enabled individually or combined together throughout the day (P1+P2). The appliance can enable the heating
phase to reach the chosen temperature at the pre-set hour, giving priority to the heating with the heat pump and,
only if necessary, with the integration according to the following combinations:
For P8=0 the integration is enabled only when the conditions are outside the heat pump's operating range.
For P8=1 and 3 the integration is enabled simultaneously with the heat pump when requested.
For P8=2 the integration is never enabled.
The integration is always enabled in case of anti-Legionella and antifreeze.
Press "mode" to select the desired Program mode (P1/P2/P1+P2), turn the knob to set the desired temperature,
press the knob to confirm, turn the knob to set the desired time and press to confirm; in P1+P2 mode the
information for both of the programs can be set.
For electrical connection with HC/HP signal dual power supply you can program heating of the water at any time of
the day.
This function requires you to set the current time, see following paragraph.
Warning: to ensure comfort for operation in P1+P2 mode with times that are very close together, it is possible that
the water temperature is higher than the temperature set.
TEMPERATURA IMPOSTATA PROGRAMMA P1
ORARIO IMPOSTATO PROGRAMMA P1
TEMPERATURA IMPOSTATA PROGRAMMA P2
ORARIO IMPOSTATO PROGRAMMA P2

7.5 Time setting

Setting the time is required if the PROGRAM mode is enabled. Once it is enabled, turn the knob to the current time
and press to confirm. It can also be set with the L0 parameter by selecting it and setting the current time by turning the
knob (the P4 function must be ON).

7.6 Information menu

The information menu allows for visualising data for monitoring the product.
To enter the menu, press the relative knob and hold for 5 seconds.
Turn the knob to select the parameters L0, L2, L3 ... L27
Upon reaching the desired parameter, press the knob to visualise its value. Press the
knob or "MODE" button to return to the parameter selection area once again.
Factory settings
55°C
06:00
55°C
18:00
78