1. Product Overview
The Beok Tuya Underfloor Heating Hub Controller is designed for floor heating systems. It receives control signals from room thermostats to manage actuators for corresponding floor heating circuits. This hub controller supports both power linkage and non-power linkage control modules, allowing it to control external components such as water pumps (or mixing units, main valves) and boilers (or heat pumps) with external control functionality.

The CCT-25 model features 5 channels, while the CCT-28 model offers 8 channels, allowing control over multiple heating zones.

2. Specifications
2.1. Technical Parameters
| Parameter | Value |
|---|---|
| Power Supply | 100-240VAC, 50/60Hz 10A |
| Passive Output (Boiler) | 8A |
| Circulating Pump Output | 250VAC, 8(5)A |
| No Power Linkage | 1 normally open common terminal |
| Number of Circuits | 8 loops or 5 loops (depending on model) |
| Max Number of Actuators per Circuit | 3 pcs |
| Output Delay | 200s |
| Wattage | 2W |
| WIFI | 2.4G |
| Certification | CE |
| Origin | Mainland China |
2.2. Product Dimensions

3. Installation
3.1. Safety Precautions
- Ensure power is disconnected before any installation or wiring.
- Installation should be performed by a qualified electrician.
- This product is only suitable for normally closed actuators. Using normally open actuators may lead to abnormal operation.
- Strictly observe the technical parameters of the equipment. The load of each interface must not exceed the specified technical parameters.
3.2. Wiring Instructions
The hub controller facilitates connections for thermostats, actuators, gas boilers, and circulating pumps. Refer to the detailed wiring diagrams below for proper connection.


Wiring Steps (Refer to video for visual guide):
- Open the hub controller casing by unscrewing the cover.
- Connect the main power supply to the designated terminals (L and N).
- Connect the thermostat to the hub controller. Ensure correct wiring for live (L), neutral (N), and control signals.
- Connect the NC (Normally Closed) actuator to the appropriate output terminals on the hub controller.
- Connect the gas boiler (dry contact) and circulating pump to their respective terminals on the hub controller.
- Secure all wire connections firmly using a screwdriver.
- Close the hub controller casing.
3.3. Actuator Models
- RZ-D07-230NC Actuator:

Figure 6: RZ-D07-230NC Actuator. - CCT-28 Actuator:

Figure 7: CCT-28 Actuator.
3.4. Installation and Wiring Demonstration Video
4. Operating Instructions
4.1. Working Principle
When a room requires heating, the corresponding room thermostat sends a signal to the hub controller. This activates the actuator for that specific floor heating circuit, and its indicator light turns on. If no signal is received from a thermostat, the corresponding actuator is turned off, and its indicator light is off.
Upon receiving a heating signal from any thermostat, and after a preset delay time (200s), the hub activates the water pump (if power linkage is enabled) and the boiler (if non-power linkage is enabled), and their respective linkage indicators light up. When all thermostats cease sending heating signals, the water pump and boiler will turn off, and their linkage indicators will also turn off.
4.2. Basic Operation
- Power On: Once wired correctly, connect the power supply. The power indicator light on the hub controller will illuminate.
- Initiate Heating: Adjust the room thermostat to a temperature higher than the current room temperature. The thermostat will send a heating signal to the hub.
- System Response: The corresponding indicator light on the hub for that zone will turn on. After approximately 3 minutes (output delay), the boiler and pump will start working, and their indicator lights will also light up. The normally closed actuator will open to allow hot water flow.
- Stop Heating: Adjust the room thermostat to a temperature lower than the current room temperature or turn off the heating function. The indicator light on the hub will immediately turn off. The NC actuator will slowly close, stopping the hot water flow.
5. Maintenance
- Regularly check all wiring connections to ensure they are secure and free from corrosion.
- Keep the hub controller clean and free from dust and debris. Use a soft, dry cloth for cleaning.
- Do not expose the device to excessive moisture or extreme temperatures.
- If any part of the system appears damaged or is not functioning correctly, consult a qualified technician.
6. Troubleshooting
- No Power: Check the main power supply connection and ensure the power indicator light on the hub is on. Verify the fuse in the hub controller (refer to Figure 4).
- Heating Not Activating: Ensure the thermostat is set correctly and sending a heating signal. Check the indicator light for the corresponding zone on the hub. Verify actuator connections.
- Boiler/Pump Not Starting: If the zone indicator light is on but the boiler/pump is not activating after the delay, check their wiring connections to the hub. Ensure the boiler and pump are functioning independently.
- Actuator Not Opening/Closing: Confirm the actuator is a normally closed (NC) type. Check its wiring and ensure it receives power from the hub.
- System Malfunction: If the system behaves unexpectedly, power cycle the hub controller (turn off and on the main power). If issues persist, consult the full user manual or professional assistance.
7. User Tips
- Actuator Capacity: Each channel on the hub controller can support up to 3 actuators. Plan your heating zones accordingly.
- Thermostat Compatibility: The hub controller is designed to work with various thermostats, including those with 3A or 16A ratings. Ensure your thermostat's output matches the hub's input requirements.
- Wiring Clarity: For complex installations, label your wires clearly before connecting them to the hub to simplify troubleshooting and future maintenance.
8. Frequently Asked Questions
- Q: How many actuators can I connect to one channel?
- A: You can connect up to 3 actuators per channel.
- Q: Is this hub functional with 3A or 16A thermostats?
- A: Yes, the hub controller is designed to be functional with both 3A and 16A thermostats.
9. Warranty and Support
For detailed warranty information and further technical support, please refer to the official Beok website or contact customer service.
A comprehensive user manual in PDF format is available for download:
If you require a translation of the connection diagram into German, please contact customer support directly as it is not available for download on the website.