The Siemens RDF series are embedded room temperature controllers for two‑pipe, two‑pipe with electric heating and four‑pipe fan‑coil systems. They support on/off or three‑position control outputs, LCD display, multi‑function inputs, automatic/manual heating‑cooling switching, energy‑saving mode and programmable weekly schedules.
The manual covers device purpose, functions, wiring, DIP switch configuration, mechanical design, installation guidelines, technical specifications and compliance standards, providing all information needed for commissioning and servicing the controllers.
| Working voltage | AC 230 V (RDF300/400) / AC 24 V (RDF340) |
|---|---|
| Maximum power consumption | 8 VA |
| Fan output capacity | Up to 5 A per output (AC 230 V) |
| Control output capacity | Up to 5 A per output (AC 230 V) |
| Multi‑function inputs | Two inputs (X1‑M, X2‑M) |
| Weight | 0.220 kg |
The RDF300 and RDF400 use an AC 230 V supply and provide on/off or three‑position control outputs.
The RDF400 supports eight programmable weekly time periods for automatic scheduling.
The RDF300.02 includes an LCD backlight for the display.
Yes, the RDF340 operates from a 24 V AC supply and provides a 0‑10 V control output.