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BUZZER. Press the T2 button to access the BUZZER menu (enable the audible signal). Press the MENU button to enable or disable the
buzzer using the T2-T3 buttons (ON / Off). Press MENU to confirm the selection.
SET DEGREES. Press the T2 button to access the SET DEGREES menu (display the temperature in °C / °F). Press the MENU button to
modify, using the T2-T3 buttons, the temperature display from °C to °F and vice-versa. Press MENU to confirm the selection.
DISPLAY. Press the T2 button to access the DISPLAY menu (brightness from 0 to 100). Press the MENU button to set the required display
brightness, using the T2-T3 buttons, from 0 to 100. Press MENU to confirm the selection.
Press the T2 button to access the TECHNICAL SETTINGS menu.
WARNING: the parameters in the technical menu should never be modified. Such operation must only be performed by an Authorised
La NORDICA S.p.A. Service Centre. La NORDICA S.p.A. is not liable for product malfunctions due to the parameters in the
technical menu being modified without authorisation.
2.1.4.
CIRCULATOR 1
The circulator is activated by the controller with the device ON and when the temperature detected by probe I1 exceeds the value set for
THRESHOLD OUT1=60°C (PR01). It is disabled when the temperature detected by probe I1 drops below the value set for THRESHOLD
OUT1 less the hysteresis value DELTA OUT1=5°C (PR02), i.e. below 55 °C. (See diagrams 2, 4,
2.1.5.
CIRCULATOR 2
The circulator is activated by the controller (if present and connected to the controller, as described in Chapter 2.3) with the device ON
and when the temperature detected by probe I1 exceeds the value set for THRESHOLD OUT2=70°C (PR03). It is disabled when the
temperature detected by probe I1 drops below the value set for THRESHOLD OUT2 less the hysteresis value DELTA OUT2=5°C (PR04),
i.e. below 65 °C. (See diagrams 1, 3,
2.1.6.
HOT WATER TEMPERATURE
The water temperature is shown on the display.
In the event of excess water temperature the device warns the user with an indicator light and an audible signal; the latter may be enabled
or disabled via the BUZZER function in the MENU.
See EXCESS TEMPERATURE ALARM.
NOTE: The circulating pump activation temperature is a factory setting.
2.1.7.
FROST PROTECTION
The frost protection function is always active on the device and acts by starting the pump when the temperature measured by the probe is
less than 5°C / 41°F (fixed threshold).
When the frost protection function is active, LED 1 Danger comes on and the message "FROST PROTECTION" is shown on the display.
2.1.8.
ANTI-BLOCKAGE
The ANTI-BLOCKAGE function automatically starts the pumps connected to the controller for 30 seconds after an extended period of
inactivity (~96 hours without power being disconnected).
When the ANTI-BLOCKAGE function is activated, the display shows the message "ANTI-BLOCKAGE".
WARNING: to ensure the ANTI-BLOCKAGE function is not disabled, always leave the digital controller connected to the power supply
(the display shows OFF).
2.1.9.
EXCESS TEMPERATURE ALARM
When the temperature measured by the water probe exceeds 87°C / 188.6°F (fixed threshold set), this alarm is activated, starting the
circulating pumps.
When the alarm is activated, LED 1 Danger comes on and the message "EXCESS TEMPERATURE" is shown on the display.
2.1.10.
FAULTY PROBE ALARM
When a probe fault occurs, this alarm is activated, starting the circulating pumps.
When the alarm is activated, LED 1 Danger comes on and the message "FAULTY PROBE I1 - I2 - I3" is shown on the display.
2.1.11.
AIR VENT
Air inside the water circuit causes noise and may damage the circulating pumps. The presence of air may occur following installation of the
product or any other work on the water circuit.
Vent any air inside the system by operating the digital controller as follows:
•
the water in the system must be at room temperature;
•
with the digital controller OFF, press buttons T2 and T3 together. The display shows the message "AIR VENT".
•
Press the T1 button to disable the AIR VENT function
2.2.
EXTRA FUNCTIONS
The sub-menus are accessed from the TECHNICAL SETTINGS menu.
The boiler and puffer settings are accessed by pressing T4 in the SYSTEM menu. Press T4 again to scroll the parameters. Press T2 and
T3 to modify the parameters. Press T4 again to confirm the changes and move on to the next parameter in the menu until you return to
the SYSTEM menu.
2.2.1.
3-WAY VALVE
The 3-way valve is activated by the controller (if present and connected to the controller, as described in Chapter 5) with the device ON
and when the temperature detected by probe I1 exceeds the value set for THRESHOLD OUT1=60°C (PR01) and the boiler is in the
demand status. It is disabled when the temperature detected by probe I1 drops below the value set for THRESHOLD OUT1=60°C less the
hysteresis value DELTA OUT1=5°C (PR02), i.e. below 55 °C or when required. (See diagrams 3, 4, 7,
11
6092000 - IT - EN - DE - FR
5
and 7).
COMPONENTI ACCESSORI PER TERMOPRODOTTI
6
8 at page
and
8 at page
27).
27).
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