TECH 21 Wireless Multi-Zone Radiator Heating Control System Kit (L-8e Controller + STT-868 Actuators)

The TECH 21 Wireless Multi-Zone Radiator Heating Control System is a comprehensive solution for managing up to 8 independent heating zones in your home or office. This kit includes the TECH L-8e main controller and TECH STT-868 wireless thermostatic actuators, allowing precise temperature control for each radiator. The system operates on a reliable 868 MHz wireless protocol, ensuring stable communication between components. With features like weekly programmable schedules, holiday mode, frost protection, and open window detection, this system enhances comfort while optimizing energy consumption. The main controller features a large backlit LCD for easy navigation and can be wall-mounted for convenient access. Optional internet connectivity via TECH ST-505 or ST-506 modules enables remote control via smartphone or computer.

Advantages

This heating control system offers significant energy savings by allowing individual zone control, reducing heating in unused rooms. The wireless installation eliminates the need for complex wiring, making it ideal for retrofitting existing radiator systems. The intuitive interface and programmable schedules provide flexibility to match your daily routine, while advanced features like holiday mode and frost protection ensure safety and efficiency.

Suitable for

• Homes with multiple radiators requiring zone-based temperature control
• Office buildings or commercial spaces with separate heating zones
• Retrofit projects where wireless installation is preferred
• Users seeking to reduce energy bills through smart heating management

Key specifications

• Product Type: Wireless Multi-Zone Radiator Heating Control System
• Main Controller Model: TECH L-8e
• Communication Protocol: Wireless 868 MHz
• Number of Controlled Zones: Up to 8 independent heating zones
• Actuator Compatibility: TECH STT-868 Wireless Thermostatic Actuators
• Control Method: Manual, Programmable Schedules, Remote via Internet Module (optional)
• Main Controller Power Supply: 230V AC 50Hz
• Actuator Power Supply: 2x AA 1.5V batteries (per actuator)
• Display Type (Main Controller): Large, backlit LCD
• Temperature Measurement Range: 5°C - 35°C
• Temperature Measurement Accuracy: ±0.5°C
• Key Features: Weekly programming, Holiday mode, Frost protection, Open window detection, Pump control output
• Internet Connectivity: Via optional TECH ST-505 or ST-506 Internet Module
• Installation Type (Main Controller): Wall-mounted
• Outputs (Main Controller): 8x control outputs for actuators, 1x pump control output, 1x voltage-free contact (e.g., for boiler)
• Operating Temperature (Controller): 5°C - 50°C
• Protection Class (Controller): IP20

Recommendations

For optimal performance, ensure that the main controller is installed in a central location away from heat sources and direct sunlight. Pair with TECH STT-868 actuators for each radiator you wish to control. Consider adding the TECH ST-505 or ST-506 internet module for remote access and advanced scheduling via the TECH app.