Thermiq FloorHub, WIRED EDITION
3 F820 12
Wired Control Box for Underfloor Heating System
8 wired zones
Main supply 230V
Includes Pump & Boiler module
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IDENT EAN CONNECTIVITY POWER SUPPLY L H L1
3 F820 12 3838963244998 Wired 230 V AC, 50 Hz 330 110 36
The HERZ Thermiq system offers flexible communication options, allowing connection through three different versions, depending on the product type:
• Wired
• Wi-Fi
• Zigbee

Each version ensures reliable data exchange between room controllers, actuators, and the central control unit, while maintaining compatibility across the HERZ Thermiq ecosystem.

The HERZ Thermiq FloorHub Wired is the central component of the underfloor heating control system, designed for precise and reliable regulation of multiple heating zones. It supports the control of up to 8 zones and is equipped with 230 V AC outputs for connecting thermoelectric actuators (NC type).
The unit features a built-in module for heat source control via a volt-free relay and a 230 V AC output for pump
control, ensuring coordinated operation between the circulation pump and the heat source.
For easy installation and maintenance, the FloorHub includes quick-connect pluggable terminal blocks, allowing convenient and error-free wiring. Compact and robust in design, it provides dependable performance and serves as the main link between room thermostats, actuators, and the heat source within the HERZ Thermiq system.


Product highlights

Central unit for underfloor heating control
Controls up to 8 heating zones with 230 V AC outputs
Built-in modules for pump and heat-source control
Compatible with NC-type thermoelectric actuators
Quick-connect terminal blocks for easy wiring
Ensures efficient and reliable zone regulation

EG-Conformity

By affixing the CE mark to the unit the manufacturer declares that the HERZ Thermiq conforms to 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.nr. DE 23479719)

Conformity has been verified and the corresponding documentation and the EU declaration of conformity are kept on file by the manufacturer.

Declaration of conformity - SLO, ENG, DEU
Parameter Value
Power supply 230 V AC, 50 Hz
Max. load 6(1) A
Outputs Pump (230 V)
  Boiler (NO/COM/NC)
  Thermoelectric actuators (230 V)
Dimension [mm] 330 × 110 × 36


Control box description

1. Cartridge fuse 5 x 20 mm T6, 3A
2. Power supply (AC 230V)
3. Pump control output (AC 230V)
4. Boiler control output (volt free)
5. Thermostats input connections
6. Actuators output connections (AC 230V)
7. LED diodes indicators for the operation status of the pump, boiler and control box power supply connection
8. LEDs 1 to 8 informing about the operation of zones 1-8

Safety information and installation

Use in accordance with national and EU regulations. Use the device only as intended, keeping it in a dry condition. The product is for indoor use only. Please read the entire manual, before installation or use. Installation must be performed by a qualified person with appropriate electrical qualifications, in accordance with the standards and regulations in force in a given country and in the EU. The manufacturer is not responsible for noncompliance with the instructions.

For the entire installation, there may be additional protection requirements, which the installer is responsible for.