Honeywell TC300B-G Thermostat

The Honeywell TC300B-G Thermostat is a high-performance 24V Fan Coil Unit (FCU) controller engineered for precision climate management in commercial environments. Built with a sleek grey finish and a responsive capacitive touchscreen, this BACnet MS/TP thermostat simplifies commissioning through an intuitive interface or remote building automation integration. It supports both 2-pipe and 4-pipe configurations, making it a versatile choice for commercial HVAC control upgrades. The TC300B-G features sophisticated auto changeover algorithms, ensuring seamless transitions between heating and cooling stages to maintain tight temperature tolerances. For contractors requiring advanced functionality, this unit includes dedicated outputs for dehumidification with reheat and auxiliary heat, plus a 72-hour power retention span for the real-time clock. Whether you are managing guest rooms or office spaces, the Honeywell CommStat FCU series provides the granular control over fan speed and occupancy scheduling needed to minimize energy waste while maximizing occupant comfort.

Key Technical Benefits:

• Protocol Compatibility: Native BACnet MS/TP support allows for seamless integration into existing Building Management Systems (BMS) for remote monitoring and setpoint adjustment.
• Customizable User Access: Configurable privilege levels prevent unauthorized setpoint tampering while still allowing local overrides for occupants.
• Enhanced System Visibility: The embedded I/O status screen provides real-time diagnostics of equipment performance and sensor data without requiring external tools.
• Advanced Scheduling: Comprehensive logic for daily occupancy, holiday exceptions, and event-based setpoints optimizes equipment runtime.
• Application Versatility: Direct control for multi-speed fans and various valve types ensures compatibility with diverse mechanical room specifications.

Common Questions for HVAC Professionals:

How do I configure the BACnet MS/TP settings on this model?
The MS/TP MAC address, baud rate, and Instance ID can be configured directly through the on-screen HMI setup menu or via the configuration tool during initial startup.

Does the TC300B-G support 0-10V modulating valve control?
This specific CommStat variant is designed for 24V applications; please verify your specific wiring diagram for floating or on/off control compatibility versus 0-10V analog requirements.

Can this unit manage humidity levels in hospitality applications?
Yes, the controller includes built-in logic for dehumidification sequences, utilizing reheat and auxiliary heat functions to manage latent loads effectively.

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.