Ariston Nuos Evo Split 110 - Electrical Connections Check; Anti-Legionnaires Disease Protection

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Heat pump water heater –

OPERATING AND MAINTENANCE INSTRUCTIONS

7.8 Electrical connections "Check" (function activated by the installer menu)

With this function you can control the electrical connections made during installation.

You can start

the procedure from the installer menu, setting the parameter C1 ON and confirm by

pressing the knob. The procedure takes about 8 minutes during which the progress

symbols

flashes on the display. To stop this procedure press "mode ".

If at the end of the procedure has the response "OK", the electrical connections were made

properly.

If the response is "KO

" recheck the electrical connections between indoor and outdoor units

paying attention to the numbers indicated on the terminals. Check sensors cable.

7.9 Anti-

legionnaire’s disease protection (function activated only through the installer menu)

If activated, the water heater automatically carries out the anti

legionnaire’s disease protection

function. The water is brought to a temperature of 65

°C on a monthly basis and for a maximum

time of 15 minutes, so as to avoid germs from developing in the water tank and piping (provided

the water has not been brought to T>57 °C at least once for at least 15 minutes). The fir

st heating

cycle is performed 3 days after the function has been activated. As these

temperatures may

cause burns, it is advisable to use a thermostatic mixer.

The achievement of temperatures above the set is marked with the symbol of the waves.

During the cycle of antilegionella will be displayed “ANTI_B”

alternately to the mode of operation,

once the cycle is done the set temperature remains the original one.

To stop press "on/off".

7.10 Default settings

The appliance is manufactured with a series of

default modes, functions or values, as indicated in the table below:

Parameter

Factory default setting

AUTO MODE ACTIVATED

BOOST MODE ACTIVATED

PRE-SET TEMPERATURE 55 °C

P1 MAX. TEMPERATURE SETTABLE WITH THE HEATING ELEMENT 65 °C

P2 MINIMUM SETTABLE TEMPERATURE 50 °C

P3 MAX. TEMPERATURE SETTABLE WITH THE HEAT PUMP 55 °C

P4 GREEN MODE ACTIVATED

P5 ANTI-LEGIONNAIRE’S DISEASE PROTECTION DEACTIVATED

P6 VOYAGE MODE DEACTIVATED

P7 DEFROST (active defrost activation) ACTIVATED

P8 HC-HP (two-tier rate operation mode) DEACTIVATED

P9 TIME_W (no. of accepted hours of powering) 8 h

P11

PROGRAM MODE (P1, P2, P1+P2) DEACTIVATED

PROGRAM P1 TEMPERATURE PRESET 55 °C

PROGRAM P1 TIME PRESET 06:00

PROGRAM P2 TEMPERATURE PRESET 55 °C

PROGRAM P2 TIME PRESET 18:00

P12

BOOST2 MODE DEACTIVATED

7.11 Anti-frost function

In any event, if the temperature of the water in the tank falls below 5

°C while the appliance is powered, the heating

element (1200 W) will be automatically activated to heat the water up to 16 °C.