Electric thermostat ADEX TTUV

Product detailed description

The ADEX TTUV electronic thermostat is typically installed in domestic hot water (DHW) storage tanks to manage the frequency of heat source activation, such as gas boilers. It is also suitable for other heating and temperature control applications. The system is commonly used in residential and commercial buildings where precise temperature regulation is required. Installers often integrate it into central heating systems, solar thermal setups, and industrial heating circuits. The thermostat ensures stable operation by maintaining a defined temperature range and reducing unnecessary switching cycles.

Its modular design allows for flexible installation, with separate control and switching modules. The temperature sensor is positioned at the point of measurement, while the switching module is mounted near the power supply. This configuration enables remote monitoring and control without compromising safety or performance. The system is designed for environments where frequent switching could lead to wear or inefficiency. Proper installation ensures that the thermostat functions reliably over time.

Technical parameters

Power supply	230V
Range of differential setting	5°C
Range of switching temperature setting	40°C
Weight	0.1 kg
Code	125008
Brand	AVANSA

The thermostat's switching temperature range (40°C–90°C) and differential range (5°C–40°C) are critical for determining how frequently the controlled heat source activates. A higher differential reduces switching frequency, which can prolong the life of the heat source. The relay contact rating (max. 8 A / 250 V for resistive loads) ensures compatibility with standard electrical heating systems. The IP40 rating means it should be installed in dry, protected locations away from direct water exposure.

Installation and connection

To install the ADEX TTUV, first locate the temperature sensor at the desired monitoring point, ensuring it is fully immersed in the medium. The TTUV1 control module and TTUV2 switching module are connected via internal wiring, and the switching module is plugged into a standard wall socket. The relay output connects to the heat source using appropriate cables and connectors rated for the load. During installation, verify that the mains supply is disconnected and that all connections are secure and insulated. Common mistakes include incorrect sensor placement, which can lead to inaccurate readings, or using undersized cables for the relay output, risking overheating.

Compatibility and accessories

This thermostat is compatible with resistive loads such as electric heaters and gas boilers equipped with relay-controlled activation. It requires a 230 V AC power supply and is suitable for integration with standard heating systems. Additional components, such as mounting brackets or protective enclosures, may be needed depending on the installation environment. Related products include the Euroster 11 E and the AVANSA TH 2A clamp-on thermostat, which offer alternative configurations for similar applications.

Technical background for designers

The ADEX TTUV operates by comparing the measured temperature with a user-defined setpoint and differential. When the temperature rises above the setpoint, the relay deactivates the heat source. When the temperature falls by the set differential, the relay reactivates it. The electronics are housed in a plastic enclosure rated for indoor use. The system integrates into larger control schemes via its relay output, allowing for expansion or automation. Long-term performance depends on proper sensor positioning and avoiding exposure to moisture or extreme temperatures.

Service and operation

Routine checks should include verifying the integrity of the sensor cable and confirming that the relay operates correctly under load. The electronics require no scheduled maintenance, but any signs of overheating or mechanical damage should prompt replacement. The IP40 rating means the unit must be kept away from damp or wet environments. There are no specified service intervals in the provided data.

Frequently asked questions

Can the ADEX TTUV be used with a solar thermal system?
Yes, provided the system uses a resistive load and the relay contact is compatible with the controller's output.

Is the temperature sensor replaceable separately?
No, the sensor is supplied as part of the complete thermostat assembly and cannot be replaced individually.

Can the thermostat be adjusted without tools?
Yes, the temperature and differential settings are adjusted using separate controls on the TTUV1 module.

Can the switching module be mounted externally to the control module?
Yes, the TTUV1 and TTUV2 modules are connected internally and can be separated for installation convenience.