Thermostatic Valve Controller Tech L-2
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$81.62
The promotion runs until 15 October 2026
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Description
TECH L-2 – thermostatic valve controller for 4 zones
TECH L-2 is a thermostatic valve controller designed to control underfloor heating in 4 zones using on/off room controllers. The device enables the control of thermostatic actuators installed on an underfloor heating manifold and cooperation with temperature controllers in individual zones.
Control of 4 underfloor heating zones
The TECH L-2 controller features 4 voltage inputs for connecting on/off room controllers. The controllers can be powered directly from the controller terminal strip, simplifying installation.
Up to 20 thermostatic actuators can be connected to the controller. The device is equipped with 4 voltage outputs, each capable of handling actuators with a maximum load of 0.3 A.
Control of thermostatic actuators
TECH L-2 enables control of thermo-electric actuators responsible for opening and closing the flow of heating medium in individual underfloor heating circuits.
With support for up to 20 actuators, the controller can be used in installations with a larger number of heating loops while maintaining the division of the installation into 4 independent control zones.
Potential-free contact for boiler or pump control
The device features a potential-free contact that can be used to control a heating device or pump. This enables the controller to work with installation components responsible for heating medium generation and distribution.
Simple design and operation
TECH L-2 is designed to operate as a control module for an underfloor heating system. The controller has no display or buttons – its operation is controlled by the connected on/off room controllers.
Key features
- control of underfloor heating in 4 zones,
- 4 voltage outputs for connecting thermostatic actuators,
- support for up to 20 actuators,
- 4 voltage inputs for connecting on/off room controllers,
- possibility of powering the controllers from the controller terminal strip,
- potential-free contact for controlling a boiler or pump,
- power supply: 230 V AC 50 Hz,
- wired 230 V voltage communication,
- compact dimensions: 203 × 120 × 53 mm.
Technical specifications
| Parameter | Value |
|---|---|
| Model | L-2 |
| Device type | Thermostatic valve controller for 4 zones |
| Power supply | 230 V AC 50 Hz |
| Power consumption | < 1 W |
| Operating temperature | 5 ÷ 50°C |
| Permissible ambient relative humidity | < 80% RH |
| Communication | Wired, 230 V voltage |
| Actuator outputs | 4 voltage outputs (4 × 0.3 A) |
| Maximum number of actuators | 20 |
| Controller inputs | 4 voltage inputs for on/off room controllers |
| Display | None |
| Buttons | None |
| Potential-free contact | Yes, for controlling a heating device or pump |
| Dimensions (W × H × D) | 203 × 120 × 53 mm |
Can the TECH L-2 control several actuators in one zone?
Yes. TECH L-2 features 4 voltage outputs designed to control thermostatic actuators and allows up to 20 actuators to be connected. This allows several actuators to operate within one zone according to the signal transmitted by the corresponding on/off room controller.
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