The FT-66 is a modern LCD controller optimized for hotel guestrooms and intelligent office spaces. It features specialized inputs for occupancy sensors (Keycard) and high-visibility status icons, focusing on maximizing energy savings without compromising guest comfort.
The FT-66 is optimized for modern intelligent office spaces and hotel guestrooms. With its sleek LCD readout and specialized support for occupancy (Keycard) sensors, it offers seamless integration into BMS networks, focusing on maximizing energy savings without compromising user comfort.

The FT-66 is designed for modern luxury hotels. Available in sleek black and minimalist white, this Hotel Energy-Saving Thermostat provides guests with a seamless climate control experience.

The FT-66 supports BACnet MS/TP and Modbus RTU. This ensures effortless integration into any Building Management System (BMS), allowing facility managers to remotely optimize energy usage across hundreds of rooms.

The FT-66 excels in energy conservation through its integrated Keycard (Occupancy) support, making it an ideal choice for high-end hospitality environments. While this model features a premium scratch-resistant glass panel for a superior tactile experience, it utilizes the same industry-leading 0-10V modulating technology found across our professional range.
For projects requiring a more budget-friendly solution without compromising on performance, we recommend our FT-08 Series, which offers the same high-standard HVAC control logic in a cost-effective physical-button design. This allows project managers the flexibility to choose between luxury glass aesthetics or economic alternatives for large-scale commercial installations.


Our FT-66 controller is engineered to meet the highest international standards for safety, reliability, and environmental responsibility:
Safety & EMC: Fully compliant with CE (RED/LVD/EMC), UKCA, FCC, and ETL Listed standards.
Environmental: Certified by RoHS and REACH, ensuring lead-free and eco-friendly manufacturing.
Quality Management: Produced in an ISO 9001:2015 and ISO 14001:2015 certified facility.
Explore more professional FCU Thermostats for your project.
| Display | LCD display |
| Communication | RS485 (Modbus RTU / BACnet MS/TP), KNX, Zigbee, LoRaWAN or Wi-Fi (Tuya) Optional |
| Power Supply | AC24V or AC85-260V (50/60Hz) |
| Pipe | Support 2-Pipe / 4-Pipe Fan Coil Units |
| Set Temp. Range | 5~35 ℃ |
| Ambient Temp. | 0~50 ℃ |
| Relative Humidity | 85% |
| Accurancy | ±0.5 ℃ |
| Modes | Cool/Heat/Heat&Cold/Fan Mode |
| Fan Speed | 3-Speed (Relay) / Variable Speed (0-10V EC Fan) |
| Modulating Control | 0-10V Signal for Proportional Valve & EC Fan |
| Programmability | 7 Days, 4 Periods & BMS Centralized Control |
| Optional Function | Occupancy (Keycard), External Sensor, Remote Probe |
| Protection Class | IP20 |
| Thermostat Dimension | 86X86X16.1mm |
| Installation | Fits Standard 86mm x 86mm / European 60mm Round Box |
| Material | ABS+PC (Rohs certificated) |
| System Compatibility | 2-Pipe/4-Pipe FCU Systems; Underfloor Heating & Fan Coil 2-in-1 (Optional) |
| Certificate | CE (RED/EMC/LVD), UKCA, FCC, ETL Listed, RoHS, REACH, ISO9001:2015, ISO14001:2015 |
| OEM & ODM | 1. Customized logo and package |
| 2. Customzied software ( change to customer’s user interface and control logic) | |
| 3. Customized hardware ( change the PCB and schematic based on the request) |


A: Yes. Since 2003, E-Top (ETOP) has been a premier OEM/ODM manufacturer specializing in high-end HVAC controls. Our FT-66 series provides professional-grade integration for hospitality and commercial projects worldwide.
A: The FT-66 is specifically optimized for hospitality projects. It includes dedicated inputs for Keycard and Occupancy sensors, allowing the BMS to automatically switch to "Economy Mode" when rooms are vacant.
A: Absolutely. For hotel chains and engineering projects, we provide OEM services including logo printing for orders over 500 units. We can also adjust the LCD icons and firmware to match specific guestroom control logic.
A: Absolutely. The FT-66 supports high-efficiency EC motors via 0-10V modulating output. This ensures ultra-quiet operation and precise temperature maintenance, which is a critical requirement for guest comfort.
A: E-Top is an ISO 9001:2015 and ISO 14001:2015 certified factory. Our products carry CE, UKCA, FCC, and RoHS certifications, ensuring full compliance for international markets.
A: We ensure project timelines are met: Samples in 3 working days and mass production in about 25 days.
A: Yes. In addition to BACnet/Modbus integration, we offer an optional WiFi module. This allows guests or facility managers to adjust settings via the Smart Life App or Voice Control.
A: BACnet MS/TP is essential for hotels aiming for LEED certification, and the FT-66 is designed specifically for this. By integrating keycard/occupancy sensors via a BACnet network, the FT-66 enables the BMS to automatically adjust HVAC setpoints when rooms are vacant. This data-driven approach, powered by our Hotel Energy-Saving Thermostats, significantly reduces operational costs across massive hotel properties.