Beretta MYNUTE X R Installer And User Manual page 17

4.6 Operating status
For changing the operating status from WINTER to SUMMER to OFF press key 1 until the
icon for the desired function is displayed.
WINTER MODE
ƒ Set the boiler to the WINTER status by pressing key 1 until both the domestic hot water
icon and the heating icon are displayed.
The interface normally displays the delivery temperature unless there is a domestic hot
water request in progress, in which case the domestic hot water temperature is displayed.
ƒ When there is a heat request and the boiler is igniting, the icon
display.
Heating REQUEST, the radiator icon blinks:
SUMMER MODE (only with water tank connected)
ƒ Set the boiler to the SUMMER status by pressing key 1 until the domestic hot water
icon is displayed.
In this status the boiler activates the traditional function of just domestic hot water, the
interface normally displays the delivery temperature. In the event of a domestic hot water
pick up, the display shows the temperature of the domestic hot water.
Domestic hot water REQUEST, the tap icon blinks:
OFF
ƒ Set the boiler to the OFF status by pressing key 1 until the central segments are
displayed.
4.7 Adjusting the heating water temperature without an outdoor
temperature sensor connected
If there is no outdoor temperature sensor the boiler operates at a fixed point, the HEATING
setpoint in this case can be set on the main page of the screen. Pressing the key C or D
displays the current heating setpoint; the value blinks with a frequency of 0.5 sec ON, 0.5
sec OFF and the icons and
Bar
DAY
come on.
The successive pressing of the key C or D allows you to set the value of the heating setpoint
within the preset range:
[40°C - 80.5°C] for high temperature systems
[20°C - 45 °C] for low temperature systems
with steps of 0.5°C.
The level bars beside the heating icon show the setpoint value set with respect to the
operating range:
- four bars on = max setpoint.
- one bar on = min setpoint
appears on the
Keeping one of the two keys C or D pressed for longer, the meter increases the speed of
advancement modifying the set value. If no key is pressed for 5sec, the value set is taken
as the new heating setpoint and the display returns to the main page.
4.8 Adjusting the heating water temperature with an outdoor
temperature sensor connected
If an outdoor temperature sensor is installed and thermoregulation is enabled (parameter
P4.18 = 1), the delivery temperature is automatically selected by the system, which quickly
adjusts the ambient temperature according to the variations in the outdoor temperature. If
you want to change the temperature, raising it or lowering it with respect to the temperature
automatically calculated by the electronic board, it is possible to change the HEATING setpoint
as follows: press the keys C or D and select the desired level of comfort within the range (-5 -
+5) (see paragraph "4.4 Setting the thermoregulation" ).
Note: if an outdoor temperature sensor is connected it is in any event possible to have the
boiler operate at a fixed point by setting the parameter P4.18 = 0 (menu P4).
4.9 Adjusting the domestic hot water temperature
A CASE: Only heating with no water tank - regulation not applicable.
B CASE: Only heating + external water tank managed by a thermostat - regulation not
applicable.
C CASE: Only heating + external water tank managed by a probe - to adjust the temperature
of the domestic hot water stored in the water tank, proceed as follows:
On the main screen, pressing the key A rather than B displays the current domestic hot
water setpoint, the value blinks with a frequency of 0.5 sec ON, 0.5 sec OFF and the icons
and come on.
The successive pressing of the keys A or B allows you to set the value of the domestic hot
water setpoint raising or lowering the value within the preset range in steps of 0.5°C.
The level bars beside the heating icon show the setpoint value set with respect to the
operating range:
- four bars on = max setpoint
- one bar on = min setpoint
+
RESET MENU
A
+
B
RESET MENU
ENGLISH
C
+
D
+
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