8803F Modbus Thermostat
Key Specifications
· Continuous fan operation (optional) · IR remote control (optional)
· 86×86×38mm · 170g
· Smart FCU thermostat
Why Choose 8803F
Smart FCU thermostat with optional continuous fan operation and IR remote control. Compact 86-type size, lightweight 170g.
· Flexible Fan Control – Optional continuous fan operation for improved air circulation
· IR Remote Ready – Optional infrared remote control for convenient daily use
· Compact & Lightweight – 86×86×38mm, only 170g
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.

