Installer Menu - Ariston NUOS Manual

Heat pump water heater - OPERATING AND MAINTENANCE INSTRUCTIONS FOR THE USER
(the appliance will ensure that the menu is automatically exited after the latter has been idle for 10 minutes).
Parameter Name
L0 TIME
L1 SW MB
L2 SW HMI
L3 ENERGY
L4 ANTI_B
L5 HC-HP
L6 HE_SET
L7 SILENT
L8 PV MODE
L9 SG MODE
L10 T W PV
L11 T_A_HP
L12 T W HP
L13 T W 1
L14 T W 2
L15 T W 3
L16 T W 4
L17 T AIR
L18 T EVAP
L19 T ASP
L20 P ASP
L21 T SH
L22 HP HYST
L23 HP h
L24 HE h
L25 HP ON
L26 TIME_W
L27 T AB
* The values shown may differ from actual values based on mains power supply voltage and frequency.
** The values are updated either every 24 hours or when switching to battery operation or when an error occurs.

7.7 Installer menu

CAUTION: THE FOLLOWING PARAMETERS MUST BE ADJUSTED BY QUALIFIED PERSONNEL.
Some product settings can be modified on the installer's menu. The key symbol is
displayed.
To enter the menu, keep the knob pressed for 5 seconds then scroll the
parameters of the "L – INFO" menu until reaching "P0 CODE".
After entering the code (illustrated in the table that follows), turn the knob to select the
parameters P0, P2, P3 ... P20.
Upon reaching the parameter to be modified, press the knob to visualise the
parameter's value then turn the knob to set the desired value.
To return to the parameter selection area, press the knob to store the entered
parameter or press "mode" (or wait 10 seconds) to exit without storing the entered
value.
To exit the installer menu, press the "mode" button (the appliance will ensure
that the menu is automatically exited after the latter has been idle for 10
minutes).
To exit the information menu, press the "mode" button
Time of the day (visible only if P4 is ON)
Mainboard Software Version
Display Software Version
Energy consumption in kWh (*) (**)
Displays whether the anti-Legionella function is enabled
Displays whether the HC-HP function is enabled
Displays the HE_SET status
Displays whether the silent function is enabled
Displays which PV function is enabled
Displays whether the SG function is enabled
Displays the temperature to be reached with the PV function
Air temperature below which the heat pump does not work
Temperature that will be reached with only the heat pump
Heating element unit sensor 1 temperature detected
Heating element unit sensor 2 temperature detected
Intermediate sensor temperature detected
Dome sensor temperature detected
Environmental air sensor temperature detected
Evaporator sensor temperature detected
Displays the intake temperature
Displays the intake pressure
Overheating temperature
Compressor hysteresis temperature
Heat pump operating times (**)
Heating element operating times (**)
Number of compressor start-up cycles (**)
Number of accepted power supply times
Displays the anti-Legionella set-point temperature
Parameter description
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