Ariston 3605020 Instructions For Installation, Use And Maintenance Manual Download Page 16

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• Intelligent anti-freezing safety
As water heater is energized and application temperature is lower than 5

C, system

heats water automatically till temperature reaches to 15

C. The purpose is to prevent

heater from freezing damage.
• Children-lock
No matter heater is in Open or Close situation, press the mode button for long term to
open children-lock. After setting, all actions are invalid except for releasing childrenlock.
Re-press the mode button for long term for unlocking.
• Intelligent water-application timing
If user selects intelligent timing heating, system automatically calculates heating time
so that user can apply favorably hot water at defined water-application time.
• Intelligent keep warm
As water heater works at intelligent timing mode and if user selects intelligent keep
warm, system automatically heats water till temperature reaches to 50

C in that case

water heater does not run and application temperature is lower than 45

C. The function

can guarantee user favorably hot water and save electricity to the extreme extent.

3. Handling introduction

3.1 Preliminary power on / power recovery after failure
For preliminary plug in, system works at the preliminary plug in status and all marks
on the screen are bright. Then start setting local time. Setting method refers to intelligent
power-off memory function. As user finishes local time setting, system works at the
waiting status. Screen only displays local time. After user presses down On/ Off button,
system works at the preliminary power on status and default heating mode is instant
mode. In addition default heating temperature is 70

C. Screen displays local time, setting

and current temperature by turns. After it is re-energized, system works at the power
recovery status. All marks on the screen are bright. Thereafter work local time setting.
Setting method refers to intelligent power-failure memory function. As user finishes real
time setting, system works at the waiting status. Screen only displays real time. As user
presses down On/ Off button, system works at the power-recovery status and runs
memorized mode and parameters. For example, mode for last power-off is timing and
temperature is 60

C. In addition first water-application time is defined 10:00pm and

second time is 7:00am. After power recovery, system still follows mentioned mode and
parameters.

3.2 Shift of heating mode and relative parameters setting
Press down the mode button for short term just for mode shift. System follows the shift
cycle, instant heating mode to night mode to economic mode to intelligent timing mode
back to instant mode. And system gives user hint to set parameters special to each
mode. User can implement setting as per hints.

3.2.1 Set parameters of instant heating mode
Press down mode button and change from intelligent timing mode to instant heating
mode. Screen shows temperature setting for last time by blinking. Preliminary default
temperature setting is 70

C. Blinking reminds user whether it is necessary to change

heating temperature on this mode. If it is required, user can press down +/- button.
Press +/- button once for short term thereafter add or deduct 1

C. If press +/- button

for long term, add or deduct heating temperature automatically till the button is released.
Temperature regulating range is 40-75

C. After user finishes temperature change, press

down set button, or carry on no action within 10seconds, for confirming setting. If it is
not necessary to change heating temperature, user does not act and system enters