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Detailed instructions for fixing the controller and sensors.
Guidance on wiring power cables to pumps and controller.
Procedure for verifying the correctness of electrical connections.
Procedure to reset the controller to its original default configuration.
Guide to navigating and modifying various operational parameters.
Configuration for central heating circulation temperature and hysteresis.
Settings for hot water tank temperature and its regulation hysteresis.
Configuration for temperature difference between heat source and tank.
Explanation of how the controller manages pump activation based on temperatures.
Detailed conditions for switching the hot water tank pump on and off.
Common issues with the device and recommended solutions or service.
Detailed instructions for fixing the controller and sensors.
Guidance on wiring power cables to pumps and controller.
Procedure for verifying the correctness of electrical connections.
Procedure to reset the controller to its original default configuration.
Guide to navigating and modifying various operational parameters.
Configuration for central heating circulation temperature and hysteresis.
Settings for hot water tank temperature and its regulation hysteresis.
Configuration for temperature difference between heat source and tank.
Explanation of how the controller manages pump activation based on temperatures.
Detailed conditions for switching the hot water tank pump on and off.
Common issues with the device and recommended solutions or service.
The Euroster 11Z is a modern controller designed to manage the operation of two pumps: a central heating circulating pump and a hot water tank loading pump. It offers the flexibility to prioritize the hot water pump, ensuring efficient and timely heating of domestic hot water. This controller is engineered to optimize the performance of central heating and hot water installations, providing both comfort and energy efficiency.
The primary function of the Euroster 11Z is to independently control the central heating and hot water pumps. It intelligently monitors temperatures from both the heating boiler and the hot water tank to make informed decisions about pump activation. A key feature is its ability to switch off the central heating pump if the boiler temperature drops below a user-defined value, preventing the circulation of cold water. Similarly, if the hot water tank temperature falls, the tank loading pump will be activated to restore the desired temperature.
The controller incorporates a hot water priority function, which, when enabled, directs all available heating power to the hot water tank. During this period, the central heating circuit is temporarily switched off until the tank reaches its set temperature, ensuring rapid hot water availability. This prioritization is particularly useful for households with high hot water demand.
To prevent the hot water tank from cooling down due to a cold boiler, the Euroster 11Z includes a protective mechanism. If the boiler temperature falls below a certain threshold, indicating boiler extinction, the controller will prevent the tank loading pump from operating, thus safeguarding the stored hot water temperature.
The Euroster 11Z also includes several protective functions to ensure the longevity and safe operation of the heating system. It prevents boiler "sweat" by managing pump operation based on temperature differentials. An anti-stop function is integrated to protect pumps from seizing due to inactivity; it automatically runs the pumps for 30 seconds every 14 days, particularly useful during off-season periods. Frost protection is another critical feature, activating both central heating and hot water pumps if the boiler sensor detects temperatures below 4°C, or just the hot water pump if only the tank sensor detects low temperatures, thereby preventing freezing.
The controller also offers a temperature reading correction feature, allowing users to fine-tune temperature measurements from the sensors to match external thermometers, ensuring accurate system control. Furthermore, it provides a pump operation test function, enabling users to manually check the functionality of both central heating and hot water pumps.
Operating the Euroster 11Z is designed to be intuitive, with an LCD screen and a single knob for navigation and setting adjustments. Upon initial power-up, the controller displays its software version and compilation date, followed by the system's current condition. The ANTY STOP system is briefly indicated as "AS" on the screen during its activation.
Users can easily access and modify various parameters by turning the knob. The LCD screen displays the parameter name at the top and its current value at the bottom. To change a value, the knob is pressed, causing the parameter value to pulse. The desired value can then be set by turning the knob and confirmed by pressing it again. If no changes are required, waiting 10 seconds will cancel the modification.
Key adjustable parameters include:
The controller also features a permanent screen backlight option, which can be configured during the factory settings restoration process. By default, the backlight turns off after one minute of inactivity, but users can choose to have it permanently on.
In case of an alarm, such as the feeder alarm temperature (90°C), the screen backlight will pulsate, and both central heating and hot water pumps will be switched off, regardless of priorities, until the temperature drops. The LCD screen also provides animated presentations of the furnace condition, offering visual feedback on the boiler's operational state (e.g., operation, overheating, damping), although these animations are purely for information and do not influence controller operation.
The Euroster 11Z is designed for reliability, but in the event of issues, the manual provides guidance on typical damages and repair methods. For instance, if the device is not working, it suggests checking for a burnt fuse or memory software fault, recommending service if these are suspected.
Sensor-related issues, such as blinking screen and sensor symbols or the appearance of "Sh" (Short) or "OP" (Open) messages, indicate a problem with the sensor cable. Users are advised to check the cable or send the device and sensor for service.
If a pump is not working, the first step is to ensure the device is switched on and that relevant symbols are visible on the screen. If not, checking the controller settings and restoring factory defaults (if necessary) is recommended. Connection errors should also be checked.
For issues with the knob, such as unpredictable behavior, it suggests a potential pulse generator damage, requiring the device to be sent for service.
The ANTY STOP system, a key maintenance feature, automatically runs the pumps for 30 seconds every 14 days to prevent rotor seizing. This function activates immediately after the controller is switched on (or after restoring factory defaults or changing backlight mode) and continues to operate periodically, provided the controller remains powered on. During ANTY STOP activity, "AS" will pulsate on the screen. If an emergency situation (like overheating or sensor damage) occurs during this process, the ANTY STOP system will be interrupted to ensure safety.
The Euroster 11Z is designed to conform with UE directives (EMC and LVD), and its CE conformity declaration is available online, ensuring it meets European safety and environmental standards. The device also comes with a 24-month warranty from the sales date, with specific conditions for claims and repairs outlined in the warranty card. For end-of-life, the controller is subject to electronic waste management guidelines, encouraging users to dispose of it at designated collection points to prevent environmental pollution.
General| Protection Class | IP20 |
|---|---|
| Wired | Yes |
| Model | 11Z |
| Power Supply | 230V AC |
| Output Voltage | 230 V |
