Schneider Electric (Viconics) VT7355F5531E Control

The Schneider Electric VT7355F5531E, formerly branded under Viconics, is a high-performance fan coil controller engineered specifically for Echelon LonTalk network integration. Designed for 2-pipe and 4-pipe HVAC systems, this terminal equipment controller provides precise 0-10VDC analog output for modulating valves and includes integrated humidity control for critical environments like hotels and commercial offices. As a direct TEC2256H-4 replacement, it fits seamlessly into existing Johnson Controls installations without requiring major wiring overhauls. This HVAC thermostat features advanced configuration parameters for floating point control and proportional-integral logic, ensuring stable discharge air temperatures and optimized fan cycles. Its PIR-ready interface allows for easy occupancy sensor integration to maximize energy efficiency while maintaining local setpoint overrides. Contractors will find the back-lit LCD and intuitive menu navigation ideal for rapid commissioning of proportional fan coil units in diverse building automation architectures.

Key Benefits

• Enhanced Connectivity: Native LonWorks/Echelon support ensures seamless communication with building management systems.
• Precise Modulation: Dual 0-10VDC outputs allow for granular control of heating and cooling valves.
• Integrated Dehumidification: Built-in humidity sensor enables native control of moisture levels without additional hardware.
• Drop-in Compatibility: Verified engineering as the official upgrade path for obsolete TEC2256H-4 units.
• Configurable Sequences: Support for multi-speed fan control and heat pump changeover logic.

Common Questions

Is the VT7355F5531E compatible with external occupancy sensors?
Yes, the terminal base includes an input specifically for PIR cover sensors or remote occupancy contacts to trigger setbacks.

Does this model require a separate humidity sensor for display?
No, this specific model features an onboard relative humidity sensor for monitoring and active dehumidification control.

Can I use this for 24VAC fan motor applications?
The unit is designed for 24VAC power but outputs analog signals; ensure your fan motor or actuator accepts 0-10VDC or use appropriate pilot relays.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.