Expansion Module TECH ML-4X Wi-Fi

TECH ML-4X Wi-Fi – expansion module for the L-4X Wi-Fi controller

TECH ML-4X Wi-Fi is an expansion module designed to work with the L-4X Wi-Fi controller. Its purpose is to extend the capabilities of an existing underfloor heating control system.

The device does not operate independently and functions as an extension of the main L-4X Wi-Fi controller. Using the module makes it possible to increase the number of available outputs and support a greater number of thermoelectric actuators.

Expansion of the L-4X Wi-Fi system

The ML-4X Wi-Fi provides 4 additional voltage outputs for underfloor heating. This allows the system to be expanded with additional heating circuits without replacing the main controller.

The module also enables the connection of up to 25 additional thermoelectric actuators, making it particularly useful in more extensive underfloor heating installations.

Designed for extensive underfloor heating systems

TECH ML-4X Wi-Fi is intended for systems where the number of underfloor heating circuits exceeds the capabilities of the basic L-4X Wi-Fi controller.

The module makes it possible to maintain one integrated control system while expanding it with additional components used to control the underfloor heating installation.

Support for thermoelectric actuators

One of the main functions of the module is to increase the number of thermoelectric actuators that can be operated within the system. According to the manufacturer, the module enables the connection of up to 25 additional thermoelectric actuators.

This makes the module suitable for larger underfloor heating manifolds where a greater number of heating loops and actuators must be controlled.

Compatibility with TECH system components

Within the L-4X Wi-Fi system, the manufacturer provides compatibility with various heating control components, including room controllers, temperature sensors, actuators and executive modules.

Compatible devices indicated by the manufacturer include, among others:

• wired R-X, R-12s, R-12b and F-12b room controllers,
• wireless R-8b, R-8b PLUS, R-8s PLUS and R-8x room controllers,
• flush-mounted R-8z, R-8pz PLUS and R-8LED controllers,
• C-8r and C-8f wireless temperature sensors,
• G-X and STT-869 wireless radiator actuators,
• STT-230/2 series thermoelectric actuators,
• C-8zr outdoor temperature sensor,
• C-2n window opening sensor,
• MW-1, MW-1 230, MWN-1 and MWN-1 230 executive modules,
• RP-4 signal repeater.

230 V power supply

The TECH ML-4X Wi-Fi module is powered by 230 V, 50 Hz. The manufacturer specifies a pump output load of 0.5 A, while the load of outputs 1–8 is 0.3 A.

Compact dimensions

The controller dimensions are 120 × 120 × 53 mm. Its compact design makes it easier to integrate the module into an extended underfloor heating control system.

TECH ML-4X Wi-Fi technical specifications

Key features of the ML-4X Wi-Fi

• L-4X Wi-Fi expansion – module designed to extend the capabilities of the main controller.
• 4 additional voltage outputs – increased underfloor heating control capacity.
• Up to 25 additional thermoelectric actuators – suitable for expanding more complex installations.
• 230 V, 50 Hz power supply – according to the manufacturer's specifications.
• Compact dimensions of 120 × 120 × 53 mm – compact housing for convenient installation.
• Part of the TECH system – designed to work with solutions intended for the L-4X Wi-Fi series.

Can the TECH ML-4X Wi-Fi operate independently?

No. The ML-4X Wi-Fi is an expansion module designed to work with the L-4X Wi-Fi controller. It is not intended for standalone operation.

What does the ML-4X Wi-Fi expansion module provide?

The module expands the system with 4 additional voltage outputs for underfloor heating and enables the connection of up to 25 additional thermoelectric actuators. This allows an installation based on the L-4X Wi-Fi controller to be expanded with additional underfloor heating circuits.