Euroster 11 B

Product detailed description

The Euroster 11 B is commonly used in residential and commercial buildings with central heating systems that incorporate thermal storage units (TUV). It ensures efficient control of the TUV pump and maintains stable water temperatures even when the boiler is inactive. Installers working with such systems will benefit from its precise temperature regulation and built-in anti-cooling features.

This thermostat is typically mounted in utility rooms or mechanical spaces where access to the TUV system components is available. It integrates seamlessly with existing control systems and allows for manual programming to suit specific building requirements. The device operates within ambient temperatures ranging from +5°C to +40°C, making it suitable for a wide range of environments.

Technical parameters

EAN	5906485706664
Packaging Dimensions (mm)	70/230/170
Weight	0.7 kg
Code	EUROSTER 11 B
Brand	EUROSTER

The operating voltage of 230 V AC at 50 Hz is standard for most European electrical systems, ensuring compatibility with typical domestic and light commercial installations. The output load rating of 3 A allows it to control standard heating pumps. The temperature measurement range from 0°C to 110°C covers both cold and hot water applications, while the regulation range from 10°C to 70°C supports typical heating and domestic hot water requirements. The 1°C accuracy and 2–10°C hysteresis ensure stable control without excessive cycling.

Installation and connection

The Euroster 11 B is wall-mounted and requires secure mounting using the included fixing templates and fasteners. The electrical connections must be made to a 230 V AC supply with proper earthing. Ensure that the wiring complies with local electrical regulations and that the circuit is protected by an appropriate fuse or circuit breaker. Connect the temperature sensors to their designated terminals and verify that they are positioned correctly within the TUV tank to measure accurate water temperatures.

Common installation errors include incorrect sensor placement, which can lead to inaccurate readings, and poor grounding, which may affect performance or safety. Always check the continuity of the wiring and confirm that all connections are tight and free from corrosion. The device should be installed in a location free from direct sunlight and moisture to maintain reliable operation.

Compatibility and accessories

The Euroster 11 B is specifically designed for use with TUV pumps and is compatible with Euroster 11 E as an alternative model. The package includes the thermostat unit, mounting hardware, instructions, a temperature sensor, and a mounting template. Additional accessories such as external temperature sensors or expansion modules may be required depending on the system configuration.

When selecting a TUV pump, ensure that it is rated for the same voltage and current as specified in the technical parameters. For larger or more complex systems, consider using the Euroster 11 E model for extended functionality.

Technical background for designers

The Euroster 11 B operates by continuously monitoring the temperature of the water in the TUV tank using two independent sensors. When the temperature drops below the setpoint, the thermostat activates the pump to circulate water through the heating system. The anti-cooling function prevents unnecessary cooling of stored hot water when the boiler is off, improving energy efficiency.

The device is constructed with durable materials suitable for indoor use and is rated IP40 for protection against dust and splashing water. The internal electronics are designed to operate reliably in environments with normal humidity levels. Proper integration into the system requires correct configuration of the temperature setpoints and verification of the pump's response to thermostat signals. The use of high-quality temperature sensors and accurate calibration ensures consistent performance over time.

Service and operation

Regular inspection of the wiring and sensor connections is recommended to prevent operational issues. Check for signs of wear or corrosion on the terminals and ensure that the sensors remain clean and undamaged. If the thermostat fails to respond to temperature changes, verify that the sensors are correctly positioned and functioning. No scheduled service intervals are specified, but routine checks during system maintenance are advisable.

Key checkpoints include confirming that the display shows accurate temperature readings and that the pump activates as expected when the setpoint is reached. If the device does not power on, check the electrical supply and fuse. In case of persistent issues, refer to the user manual or contact the manufacturer for further assistance.

Frequently asked questions

Can the Euroster 11 B be used with a TUV tank and pump from another brand?
As long as the pump is rated for 230 V AC and the system supports programmable temperature control, the thermostat should be compatible. Ensure that the pump's specifications match those in the technical parameters.

How many temperature sensors are included?
The package contains one temperature sensor for the TUV tank. A second sensor may need to be ordered separately if additional monitoring points are required.

Is it possible to adjust the hysteresis setting manually?
The hysteresis range is fixed between 2°C and 10°C according to the manufacturer’s specifications. This range helps prevent excessive cycling and ensures stable operation.

What should be checked if the pump does not activate?
Verify that the thermostat is receiving power, the temperature sensors are correctly connected, and the setpoint is set appropriately. Also, check the pump for faults or blockages in the system.