FCU Thermostat for Hotel & BMS Systems (2-Pipe / 4-Pipe) | BT03

Designed for commercial fan coil unit (FCU) systems, the BT03-FCU room thermostat supports both 2-pipe and 4-pipe configurations, making it ideal for hotels, office buildings, apartments, and BMS-integrated HVAC projects.

It provides stable fan and valve control with flexible options including ON/OFF and 0–10V modulating outputs, ensuring compatibility with a wide range of HVAC systems.

>> Product Video                                         

>> Technical Parameter                                            

>> Model Table Selection Guide                           

Product Photo	Model NO.	Power Supply	Communication	Pipe System	Valve Control	Fan Control
	BT03-FCU-BAC-2	24VAC/230VAC	BACnet	2-pipe	on/off	3-speed fan
	BT03-FCU-BAC-4	24VAC/230VAC	BACnet	4-pipe	on/off	3-speed fan
	BT03-FCU-BAC-2M	24VAC/230VAC	BACnet	2-pipe	0-10V Modulating	3-speed fan
	BT03-WF-FCU-2	24VAC/230VAC	Wi-Fi	2-pipe	on/off	3-speed fan
	BT03-WF-FCU-4	24VAC/230VAC	Wi-Fi	4-pipe	on/off	3-speed fan
	BT03-WF-FCU-2M	24VAC/230VAC	Wi-Fi	2-pipe	0-10V Modulating	3-speed fan
	BT03-FCU-EC-2N	24VAC/230VAC	Modbus	2-pipe	on/off	0-10V fan
	BT03-WF-FCU-EC-2M	24VAC/230VAC	Wi-Fi	2-pipe	0-10V Modulating	0-10V fan

>> FCU Thermostat Selection Guide                     

•   ● Pipe system: 2-pipe / 4-pipe
•   ● Fan control: 3-speed
•   ● Valve control: ON/OFF or 0–10V
•   ● Communication: Standalone / Modbus / WiFi
•   ● Power supply: 230VAC / 24VAC

>> Detailed Images                                

>> Wiring Diagram                                  

>> Key Features                               

>> Typical Applications                                  

•   ● Hotel guest room FCU control
•   ● Office buildings and commercial HVAC systems
•   ● Residential apartments
•   ● Building automation systems (BMS integration)

>> Why Choose This FCU Thermostat?                    

•   ● Stable RS485 communication for long-distance wiring
•   ● Compatible with Modbus and BMS systems
•   ● Flexible control logic (fan delay, energy saving mode)
•   ● Easy installation with EU standard wall box
•   ● OEM / ODM customization for projects

>> FAQ                                                                      

1. What is the difference between 2-pipe and 4-pipe FCU?

   2-pipe systems use one coil for heating/cooling, while 4-pipe systems have separate coils for better temperature control.

2. Can this thermostat support Modbus or BACnet?

   Yes, Modbus is available, and BACnet versions can be customized.

3. Does it support 0-10V valve control?

   Yes, modulating versions are available for precise control.

4. Is it suitable for hotel projects?

   Yes, widely used in hotel and apartment FCU systems.