Ariston Nuos EVO SPLIT 300, Руководство пользователя

Страница: 44 / 104

Heat pump water heater – INSTALLATION
42
7.3 Setting the temperature
The desired temperature for the hot water can be set by turning the knob clockwise or anti-clockwise (the visualised
temperature will flash temporarily).
To visualise the current temperature of the water in the tank, press and release the knob; the relative value will appear
for 8 seconds then the set temperature will reappear once again.
The temperatures that can be obtained in the heat pump mode vary between 50°C and 55°C, by factory default
setting. By accessing the installer menu (illustrated in Paragraph 7.7), the interval range can be extended to between
40°C and 62°C (bear in mind that temperatures exceeding 55°C in the heat pump mode may lead to greater wear of
the compressor).
The maximum temperature that can be obtained with the heating element is 65°C, by factory default setting, and
75°C, by varying the setting on the installer menu.
7.4 Mode of operation
In normal operating conditions, the “mode” button can be used to vary the operating
mode through which the water heater reaches the set temperature. The selected
mode will be visualised on the line below the temperature.
If the heat pump is active, the following symbol will appear:
If the heating element is active, the following symbol will appear:
•
AUTO mode: the water heater understands how to reach the desired temperature in a few hours, through the
rational use of the heat pump and, only if necessary, of the heating element. The maximum number of hours it
takes depends on the P9 – TIME_W parameter (see Paragraph 7.7), which is set to 8 hours by default.
(recommended for winter to ensure the better comfort).
•
BOOST mode: by activating this mode, the water heater simultaneously uses the heat pump and heating
element to reach the desired temperature in the shortest possible time. Once this temperature is reached, the
AUTO operating mode is restored.
•
GREEN mode (to be activated through the installer menu) : the water heater will use the heat pump, thereby
ensuring maximum energy saving! The maximum temperature that can be reached depends on the value of the
P3 parameter (51°C-62°C) – refer to Paragraph 7.7. The heating element may turn on only in the event that
occurs inhibition of operation of the heat pump (errors, air temperature out of operating range, defrosting
process in progress, anti-legionnaire’s disease). This function is recommended for air temperatures above 0°C
during the hours of heating.
•
VOYAGE mode (to be activated through the installer menu) : studied for situations in which users are absent
from the appliance’s operating location; this mode allows for programming the number of days of absence,
during which the water heater will remain turned off. The appliance will activate only to supply hot water on the
day of arrival; protection against corrosion will continue to be guaranteed while the product will automatically
ensure that the temperature of the water in the tank does not fall below 5°C. Press the “mode” button until
selecting the VOYAGE mode, turn the knob to set the number of days (“days”) then press the knob to confirm.
The display will only visualise the number of days that remain until the product’s reactivation.
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.
For example, when leaving home on a Saturday morning to return on the Sunday of the successive week, on
Saturday morning it will be necessary to programme 7 nights of absence so as to have hot water available upon
returning home on Sunday. To stop this function press the button “mode”.
•
PROGRAM mode (to be activated through the installer menu) : You have two programs P1 and P2, which
may act either individually or in combination with each other during the day (P1 + P2). The device will be able to
activate the heating phase to reach the selected temperature set in the timetable, giving priority to heating by
heat pump and, if necessary, through the heating elements.
Press the mode button to select the desired Program mode, turn the knob to set the desired temperature, press
it again to confirm, turn the knob to set the desired time and press to confirm; mode P1 + P2 can set the
information for both programs. In the case of electrical connection with two-tier price signal HC / HP, you still
possible program the water heater at any time of day. For this function is required the setting of the current time,
see the next paragraph.