8819F WiFi Modbus thermostat for FCU
Key Specifications
· Linkage function (optional) · Continuous fan operation (optional)
· 4-pipe fan convector design (optional) · AC + floor heating dual-function (optional)
· RS485 interface (optional) · WiFi Tuya App (optional) · IR remote control (optional)
· 86×86×40mm · 180g
· Smart FCU thermostat
The 8819F is a WiFi Modbus thermostat for FCU systems. It supports Tuya App, RS485, IR remote, and optional linkage control. The 4-pipe design and AC+floor heating dual-function add flexibility for complex installations.
This thermostat supports Modbus RTU communication. For official protocol details, visit the Modbus Organization website.
Why Choose 8819F WiFi Modbus thermostat for FCU
Smart FCU thermostat with extensive optional features: linkage control, continuous fan, 4-pipe design, AC+floor heating combo, RS485 Modbus, Tuya WiFi, and IR remote. Standard 86-type size, lightweight 180g.
· Linkage Function – Optional transceiver-based device-to-device automation
· Flexible Fan Control – Optional continuous fan operation
· 4-Pipe & Dual-Function – Optional fan convector design and AC+floor heating combination
· Smart Connectivity – Optional RS485, Tuya App (WiFi), and IR remote control
· Compact & Lightweight – 86×86×40mm, only 180g
8819F WiFi Modbus thermostat for FCU Operation Functions
1. Basic Operation Modes
– Heating Mode: Adjusts indoor temperature for warmth.
– Cooling Mode: Provides cooling for hot conditions.
– Fan Mode: Circulates air without heating or cooling.
– Clock Mode: Allows scheduling and time-based operations.
2. Button Locking & Timer Function
– Button Lock: Prevents accidental adjustments.
– Timer: Enables scheduled on/off operations for energy efficiency.
3. Sleep Mode
– Automatically adjusts temperature gradually for Comfortable sleep conditions.
– Energy savings.
4. Advanced Options
– Customizable settings for specialized use cases.
5. Linkage Function (Optional)
· Optional transceiver-based linkage control
· Enables automated actions between AC, fresh air, floor heating, etc.
· Point-to-point RF communication, no central controller needed
6. Temperature Calibration
– Ensures accurate temperature readings and adjustments.
7. Power Failure Memory Function
– Restores previous settings after a power outage.
8. Anti-Freeze Protection (Optional)
– Prevents freezing in cold conditions for system longevity.