THERMIQ RADEX BAT
3 F820 36
The RADEX BAT battery-powered smart room thermostat enables energy-efficient wireless control of radiator and underfloor heating systems without requiring a 230 V mains power supply. Utilizing modern ZigBee 3.0 and RF 868 MHz communication technology, it can wirelessly connect directly to up to six electronic radiator heads or wiring centres. When connected to an internet gateway, it provides full remote control and schedule management via the HERZ Thermiq mobile application.
Category:
  • DIMENSIONS
  • USAGE
  • TEHNICAL DATA
  • QUALITY
  • INSTALLATION
  • DOCUMENTATION
ITEM CODE EAN CONNECTIVITY POWER SUPPLY L H L1
3 F820 36 3838963250609 Wireless (ZigBee and FM) 230V AC, 50 Hz 80 80 23

HERZ Thermiq RADEX BAT is a programmable, surface (wall) mounted smart internet temperature controller powered by batteries (2 x AA batteries). It is engineered for energy-efficient management of radiator or underfloor heating systems. It supports both heating and cooling modes and utilizes ZigBee 3.0 / RF 868 MHz wireless communication technology.

Being completely battery-powered, it does not require a 230 V mains power supply, enabling straightforward installation anywhere in the room without building alterations or running cables.

Wireless control of radiator heating:

  1. HERZ Thermiq Connect (Internet Gateway): The central hub for creating the ZigBee wireless network. It enables control and monitoring of all connected devices via the HERZ Thermiq smartphone app.

  2. HERZ Thermiq RADEX BAT: The essential component for efficient room temperature management. Measuring ambient temperature away from the radiator ensures superior living comfort and energy savings.

    • Direct synchronization (offline mode): RADEX BAT can wirelessly sync directly with electronic radiator heads (such as Thermiq HeatCap) without requiring an internet gateway or network. A single thermostat can control up to 6 radiator heads in the same room.

    • Online mode: When paired with the internet gateway, it enables full remote temperature and schedule management via the mobile app.

  3. HERZ Thermiq MultiSwitch / Relay modules: For wireless control of the heat source (e.g. gas boiler or circulation pump) via a direct volt-free link.

Wireless control of underfloor heating:

RADEX BAT connects wirelessly to the wireless wiring centre (FloorHub Wireless) via the binding function. The thermostat maintains the desired room temperature by enabling or disabling the assigned heating zone on the wiring centre, thereby actuating the thermal actuators on the manifold.

Key features:

  • Offline wireless control: The direct binding feature allows reliable communication between the controller and receivers (wiring centres, modules, relays) even during an internet connection outage.

  • Customizable schedules: Ability to program 4 time periods per day with independent temperature settings, including simple schedule duplication across days of the week.

  • Additional features: Keypad lock (with optional PIN code), configurable minimum and maximum temperature limits, temperature display calibration (offset), valve protection function (Anti-stop), and frost protection.

Parameter Value
Power supply 2 x AA
Maximum current 3(1) A
Temperature setting range 5.0 °C to 45.0 °C
Temperature display accuracy 0.5 °C
Control algorithm TPI hysteresis (±0.1 °C to ±2 °C)
Communication ZigBee 3.0 RF 868 MHz
Control output NO/COM volt-free contact
Dimensions [mm] 80 x 80 x 23

LCD Icon Description + Button Description

LCD iconography:

  1. Current temperature

  2. ZigBee network connection

  3. Receiver connection

  4. Heating indicator (icon animates when heating call is active)

  5. Cooling indicator (icon animates when cooling call is active)

  6. Clock / Time

  7. Temperature unit

  8. Target temperature (setpoint)

  9. Temporary override mode

  10. Schedule mode icon

  11. Program number

  12. Day of the week indicator

  13. Keypad lock

  14. Settings icon

Button description:

  1. "DOWN" button

  2. "OK" button

  3. "UP" button



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EC Compliance

By affixing the CE mark, the manufacturer declares that HERZ Thermiq complies with the following relevant safety regulations:
• EU Low Voltage Directive 2014/35/EU
• EU Electromagnetic Compatibility Directive 2014/30/EU
• EU RoHS Directive 2011/65/EU
• EU WEEE Directive 2012/19/EU (Reg. No. DE 23479719)

Compliance has been verified, and the corresponding documentation and EU Declaration of Conformity are kept by the manufacturer.

Declaration of Conformity - SLO, ENG, DEU

Safety Information and Installation

Use in accordance with national and EU regulations. Use the device only for its intended purpose and keep it in a dry condition. The product is intended for indoor use only. Read the entire manual before installation or use. Installation must be carried out by a qualified professional with appropriate electrical qualifications, in accordance with applicable national and EU standards and regulations. The manufacturer is not responsible for non-compliance with the instructions.

Additional protective equipment may be required for complete installation, for which the installer is responsible.