Honeywell TC300 Thermostat
Honeywell Building Technologies

TC300 Thermostat

Comfort at first swipe. From commissioning to comfort, one thermostat feels right with every swipe. The Honeywell TC300 Commercial Thermostat is built for fast, guided setup and connected, facility-wide visibility. Designed through hundreds of hours of testing, TC300 delivers a user experience that’s intuitive, responsive, and smart enough to adapt to occupant comfort preferences.

Resources

Data Sheet
Specs & product details
Webinar
Overview and positioning

Professional capabilities that put everyone at ease

The TC300 Thermostat is a versatile building automation device designed for indoor commercial applications, especially 2-pipe or 4-pipe fan coil setups. It supports dehumidification, auxiliary heat functions, and quick transitional system changeover.

With flexible I/O, it meets a wide range of needs. TC300 enables BACnet MS/TP and Modbus (RS485) communications for HVAC control systems, allowing future updates. Intelligent control algorithms and scheduling balance energy efficiency and comfort, while a user-friendly color touch screen simplifies configuration and reduces reliance on technical manuals.

TC300 thermostat cooling screen

TC300 thermostat heating screen

TC300 Key Features & Benefits

Core Capabilities
  • Compatible with the majority of 2-pipe / 4-pipe FCU applications
  • Configurable user types and privileges with guided setup and embedded help
  • Highly intuitive touchscreen interface with swipe functionality
  • Onboard temperature and humidity sensors
  • BACnet MS/TP or Modbus integration (RS485)
Flexible I/O
  • 3 × digital outputs
  • 2 × digital inputs/outputs
  • 3 × universal inputs/outputs
External Sensors Supported
  • Remote space temperature (analog and Sylk)
  • Remote temperature / humidity / CO2 (Sylk, TR50-3D/N or TR40)
  • Supply / discharge air temperature
  • Changeover temperature sensor or switch
  • Drain pan, occupancy, and proof of flow

TC300 Equipment Compatibility

2 & 4 Pipe FCU
  • On/Off, floating, modulating, or 6-way valves
  • 1-, 2-, or 3-speed fan or variable-speed fan
  • Supply air temperature control

Communications: RS485 — BACnet MS/TP or Modbus integration Functions: Dehumidification w/ reheat + auxiliary/peripheral heat Sensors: Wired remote sensors (Sylk bus or analog) Comfort: 2-pipe hybrid function improves comfort before CW/HW setpoint is reached

TC300 thermostat in hand

Built for Everyone Involved
Convenient for users
Convenient for users

Give occupants “déjà view” with a swipeable color touchscreen that works like the mobile devices they already know.

Easy for contractors
Easy for contractors

Designed for simple installation with fewer callbacks. Guided setup is built into the device, minimizing training and reliance on user manuals.

Connected for facility managers
Connected for facilities

Get integrated control and secure remote access to manage your facility more efficiently.