Description
The Siemens RAA20U is a commercial-grade heating and cooling thermostat engineered for 2-pipe fan coil unit applications. Designed by Siemens Building Technology, this ON/OFF controller delivers reliable temperature management across a wide range of multi-voltage installations, supporting 24V, 120V, and 277V systems — making it a versatile solution for light commercial and commercial building environments.
Key Features
- Heating and cooling (HT/CL) operation for 2-pipe fan coil systems
- Multi-voltage compatibility: 24V, 120V, and 277V
- Simple ON/OFF switching for straightforward system control
- Designed for 2-pipe hydronic fan coil unit applications
- Commercial-grade construction from Siemens Building Technology
- Compact design suitable for wall-mount installation
Application
The RAA20U is ideal for hotels, office buildings, dormitories, and other commercial facilities that utilize 2-pipe fan coil systems. Its broad voltage range eliminates the need for separate transformers in many installations, reducing installation time and material costs. The straightforward ON/OFF control logic ensures dependable comfort management in spaces where simplicity and reliability are paramount.
Why Choose Siemens Building Technology
Siemens Building Technology is a globally recognized leader in HVAC controls, building automation, and energy management. The RAA20U reflects Siemens’ commitment to quality, durability, and ease of integration — trusted by mechanical contractors and building engineers worldwide.
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