8902RH Hydronic Floor Heating Thermostat
Key Specifications
· Smart thermostat for hydronic (water) floor heating
· Linkage function (optional) · WiFi Tuya app (optional)
· 86×86×40mm · 145g
The 8902RH is a hydronic floor heating thermostat designed for water-based underfloor heating systems. It supports WiFi Tuya App for remote operation and scheduling, with optional linkage function for device-to-device automation. The 86x86x40mm size and 145g weight offer a practical balance of performance and easy installation.
This thermostat supports Modbus RTU communication. For official protocol details, visit the Modbus Organization website.
Why Choose 8902RH Hydronic Floor Heating Thermostat
· Linkage Function – Optional transceiver-based device-to-device automation (e.g., with AC or fresh air)
· WiFi Tuya App – Optional smart control via Tuya App for remote operation and scheduling
· Compact Size – 86×86×40mm fits standard wall boxes
· Lightweight – Only 145g for easy installation
Operation Functions
1. Core Control
– Thermostat compares measured room temp to set point; powers heating element ON if below, OFF if at/above.
2. Primary Benefits
– User convenience, comfort, energy savings.
3. Safety Cutoff
– Automatically cuts power at 60°C (sensor temp) to prevent overheating damage.
4. Programmable Thermostat
– Multi-period scheduling (e.g., 5+2 or 7-day, 6 periods/day).
– Timed on/off, frost protection, power-off memory, IR remote, backlight.
– Economical” preset modes.
5. Network Thermostat
– Enables remote/central/network control.
– Includes scheduling, timed on/off, IR remote, backlight.