Siemens RDY2000 Commercial Thermostat
The Siemens RDY2000 is a full-featured commercial-grade thermostat designed for easy installation and intuitive operation in a wide range of HVAC applications. Ideal for offices, retail, and light commercial environments, it provides precise control and advanced scheduling options for both conventional and heat pump systems.
Key Features
- Supports up to 3 stages of heating and 3 stages of cooling (conventional) or 4 heat / 2 cool (heat pump) systems
- Operates on 24 VAC power with a large, easy-to-read touchscreen display
- Configurable auto-changeover between heating and cooling modes
- Built-in scheduling for 7-day, 5-2, or custom programs with up to four periods per day
- Optional humidity and CO₂ control using compatible Siemens sensors
- Service reminders for air filters, UV lamps, and humidifiers
- Password-protected Installer and Expert setup menus
- Compatible with 10 k Type II thermistor remote temperature sensors
Compatibility
- Works with most standard commercial HVAC systems, including rooftop units (RTUs)
- Supports both single-transformer and dual-transformer wiring setups
- Optional remote sensors: QAA2330 (temperature), QFA33SS (temp + humidity), QPA2000 (CO₂), and others
Electrical and Environmental
- Power: 24 VAC ± 20% (Class 2, 4 A max total load)
- Output Rating: 1 A max per output
- Operating Temperature: 23°F to 122°F (–5°C to 50°C)
- Enclosure Rating: NEMA 1
Ideal Use Cases
Perfect for retrofit or new installations in spaces where reliable and efficient comfort control is needed—such as retail stores, small offices, and standalone building zones.
