Siemens RDX33.21 Manuals

N3075en 17.04.2009 Building Technologies 3 075 RDX33.21, RDX43.2 Room temperature controllers with LCD and 7-day time switch RDX33.. RDX43.. For release of a heat pump or control of actuating devices in heating or cooling mode • Operating modes: Auto Timer, Comfort, Energy Saving, and Protection • Potential-free output (ON / OFF) for release of a heat pump or control of actuating devices • Potential-free output (ON / OFF) for selection of heating or cooling • Output for control of auxiliary electric heating (RDX43.2) • Manual heating / cooling changeover • 8 programmable time switches • Selectable commissioning and control parameters • Selectable display of room temperature or setpoint • Minimum and maximum setpoint limitation • Operating voltage: Batteries DC 3 V (RDX33.21) AC 230 V (RDX43.2)