Description
The Siemens 550-405N is an ATEC (Advanced Terminal Equipment Controller) designed for Variable Air Volume (VAV) applications with reheat and current transformer (CT) monitoring. Purpose-built for commercial building automation systems, this controller delivers precise airflow regulation and reheat management to maintain occupant comfort and energy efficiency across multi-zone HVAC installations.
Key Features
- ATEC VAV controller engineered for variable air volume terminal unit applications
- Integrated reheat control for simultaneous heating and cooling zone management
- Current transformer (CT) input for monitoring electric reheat coil operation and verifying actuator performance
- Designed for seamless integration with Siemens Building Technologies building automation and control networks
- Supports precise damper positioning for optimized airflow delivery to conditioned spaces
- Compact controller form factor suited for installation within VAV terminal unit enclosures
- Enables independent zone temperature control in commercial and institutional buildings
Application
The Siemens 550-405N is ideal for use in commercial office buildings, hospitals, schools, and institutional facilities where multi-zone VAV systems with electric or hot water reheat are required. The CT input provides an added layer of verification, confirming reheat element activation and supporting fault detection within the building automation system.
Brand & Compatibility
- Manufacturer: Siemens Building Technologies
- Part Number: 550-405N
- Compatible with Siemens APOGEE and related BAS platforms
- Intended for professional installation by licensed HVAC and building automation contractors
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