Technical data sheet for the Belimo 22RT-A001 LCD Room Unit, detailing specifications, operation modes, and compliance.
The Belimo 22RT-A001 LCD Room Unit is designed for zone control in HVAC systems, providing on/off control, mode selection, and temperature set‑point adjustment. It features an NFC interface for quick smartphone commissioning and displays room temperature and status information.
Key specifications include a nominal AC 24 V supply, multiple operation modes (On, Off, Eco, Boost, Anti‑frost, Occupancy, Winter/Summer, CAV), temperature sensing accuracy of ±0.3 °C, and a compact size of 85.4 × 84.4 × 15 mm. The unit complies with safety class III, IP20 protection, and relevant EMC standards.
| Nominal voltage | AC 24 V, 50/60 Hz |
|---|---|
| Operating voltage range | AC 19.2 – 28.8 V |
| Safety protection class | III |
| Degree of protection (IP rating) | IP20 |
| Sensing element accuracy | ±0.3 °C (15 – 30 °C) |
| Display resolution | ±0.5 °C (0 – 50 °C) |
| Wiring terminals | 6 × 0.5‑1.5 mm² cable |
| Power consumption (no occupancy device) | 1 W max |
| Power consumption (with occupancy device) | 10 W max |
| Dimensions (W × H × D) | 85.4 × 84.4 × 15 mm |
The unit supports On, Off, Eco, Boost, Anti‑frost (built‑in), Occupancy (external sensor), Winter/Summer (APP/BACnet), and CAV mode (APP/BACnet).
It consumes up to 1 W without an occupancy device and up to 10 W when powering an occupancy device.
The temperature sensor is accurate to ±0.3 °C within the range of 15 °C to 30 °C.
The unit measures 85.4 mm × 84.4 mm × 15 mm (width × height × depth).