RDF310.2, RDF310.21 and RDF410.21 are embedded room thermostats with LCD display for two pipe fan coil systems and direct expansion devices. They can control three-speed fan, two-pipe valve actuator and single-stage compressor.
The manual describes the purpose, applications and functional features of the Building Technologies room temperature controllers (RDF310.2, RDF310.21, RDF410.21/CN). It explains how the controller can manage heating, cooling and fan speed for two‑pipe fan‑coil systems or direct‑expansion compressors, with options such as manual/auto fan control, infrared remote, LCD backlight and 8 programmable time periods.
Installation instructions, wiring diagrams, parameter settings, fault handling and detailed technical specifications are provided. The document also lists compatible accessories, such as remote controls, sensors and actuators, and explains how to adjust parameters (P01‑P25) for temperature set‑points, fan speed, mode switching and display units. This manual is written in Chinese.