8819F Modbus Thermostat
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
Why Choose 8819F
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
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.