8902RHKLD-ZLWS 0-10V thermostat for BLDC fan and floor heating
Key Specifications
· BLDC integrated AC & floor heating thermostat for fan coil unit (FCU) and hydronic floor heating (water system)
· 0-10V adjustable speed, universal for DC brushless fans
· Standard with linkage function
· Dual-function model combining air conditioning and floor heating
· RS485 connecting interface (optional) · Built-in WiFi (Tuya App)
· 86×86×40mm · 190g
The 8902RHKL is a 0-10V thermostat for BLDC fans, designed for fan coil units and floor heating systems. It supports 0-10V speed control for DC brushless fans, enabling smooth, silent, and energy-efficient operation. Built-in Tuya WiFi and optional RS485 Modbus make it suitable for both residential and building automation applications.
This thermostat supports Modbus RTU communication. For official protocol details, visit the Modbus Organization website.
Why Choose 8902RHKLD-ZLWS 0-10V thermostat for BLDC fan and floor heating
· 0-10V Speed Control – Universal output for DC brushless (BLDC) fans, enabling smooth, silent, and energy-efficient fan speed adjustment
· Linkage Function (Standard) – Built-in device-to-device automation (e.g., with fresh air or curtains)
· AC + Floor Heating Combo – One thermostat controls both fan coil (chilled/hot water) and water floor heating terminals
· RS485 Modbus – Optional RS485 interface for building automation and central control
· Built-in WiFi (Tuya App) – Remote control and scheduling via Tuya App
· Compact Size – 86×86×40mm fits standard wall boxes
· Sturdy Build – 190g for reliable quality
Operation Functions
1. Integrated HVAC Operating Modes.
– Floor heating mode.
– Air Condition & Floor heating Dual-function mode.
– Air Condition & Radiant Floor Cooling Dual-function mode.
2. 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.
3. Sleep Mode
– Automatically adjusts temperature gradually for Comfortable sleep conditions.
– Energy savings.
4. Button Locking & Timer Function
– Button Lock: Prevents accidental adjustments.
– Timer: Enables scheduled on/off operations for energy efficiency.
6. Time Setting
– Enter setup by holding Mode button for 5 seconds. WIFI models automatically sync internet time upon connection.
7. Advanced Options
– Customizable settings for specialized use cases.