ComfortVu™ Standard BACnet Thermostat - Temperature only

  • California Prop 65


24Vac Standard Models


Carrier’s ComfortVu™ BACnet thermostats offer local control of a building’s heating, ventilating and air-conditioning (HVAC) system as well as remote control from any BACnet-compliant building management system (BMS), including Carrier’s i-Vu® building automation system.



  • Large, backlit LCD display
  • Touchscreen occupant controls
  • Support for Celsius or Fahrenheit
  • BACnet MS/TP port for easy integration with i-Vu system or any BACnet-compliant BMS
  • On-board DIP switches to configure equipment type and sequence of operation
  • 2 universal inputs, 2 analog outputs, and 6 digital outputs
  • Available in two 24 Vac models:
    Temperature (TB24-C)
    Temperature/Humidity/PIR Motion (TB24-HM-C)

Supported Functions

  • Manage 7-day schedules via the thermostat
  • Manage setpoints, occupancy status, fan speed, and heating/cooling mode via the thermostat or BACnet BMS
  • Support for Title 24 demand response/economizer FDD and IECC2015 economizer FDD when connected to a BMS

Equipment Compatibility

  • Rooftop Units
  • Heat Pumps
  • Fan Coils
  • Exhaust Fans
  • Unit Heaters

Supported Applications (depends on available I/O)

  • Up to 3 stages of heat / 2 stages of cool
  • 2 pipe / 4 pipe cooling / heating valves (0-10V)
  • Up to 3 fan speeds
  • VFD (0-10V)
  • Economizer (open/close)
  • Reversing valve
  • Humidifier (0-10V) / Reheat (dehumidify)


Power Requirements 24 Vac ±15%: 4VA unit, 76 VA full load
Communication BACnet MS/TP with baud rates up to 76.8 kbps, detected and set automatically by the BACnet Thermostat. Max 127 devices.
Real-time Clock Real-time clock keeps track of time in the event of a power failure for up to 7 days
Display Backlit Touchscreen, °F or °C Selectable
Sensing Element Temperature:Range: 41° F to 95° F (5° C to 35° C) Accuracy: ±1.0° F (0.5° C)
Humidity:Range: 10% to 90% Accuracy: ±3.0% typical
Motion Sensing Sensor Type: PIR, quad, omnidirectional
Distance: 16.4 feet (5m)
Detection range: (HxV) 90° x 30°
Movement speed: 2.62 to 3.94 ft/s (0.8 to 1.2 m/s)
Detection object: 15.75 x 9.84 in. (400 x 250 mm)
Inputs T1, 0 – Normally open or normally closed dry contract, or 0-10 Vdc analog input, or 50 kOhm thermistor @ 25°C
A, B - Communication +/- (RS485)
In1, 0 - Normally open or Normally closed dry contract, or 0-10 Vdc analog input, or 50 kOhm thermistor @ 25°C
C, R - Power: 24 Vac for part numbers TB-24-C and TB-24-HM-C, or 110-220 Vac line voltage for part numbers TB-C and TB-HM-C
Outputs 11, 12, 13 – Digital outputs, 3A
14 – Digital outputs 0.3A
15, 16 - Digital Output 0.3A or Analog output 0-10 Vdc, 5 mA max., not isolated
Environmental Operating Range 50° to 122°F (10° to 50°C), 10 to 90% relative humidity, non-condensing
Compliance United States of America: FCC CFR47, Chapter 1, Subchapter A, Part 15, Class B
Canada: Industry Canada Compliant, ICES-003, Class B
Europe: Mark Low Voltage Directive: 2014/35/EU RoHS Compliant: 2011/65/EU
Australia and New Zealand: C-Tick Mark, AS/NZS 61000-6-3
CA Prop 65 Warning: This product can expose you to chemicals including Styrene and 1,3 – Propane sultone, which are known to the State of California to cause cancer. Go to

California residents please see Proposition 65

Safety Standards
California Prop 65 Yes
Hazardous Material No
Weights and Dimensions
Operating Weight (lbs) 0.3
Exterior Dimensions (D) (inches) 0.910000
Exterior Dimensions (W) (inches) 3.620000
Exterior Dimensions (H) (inches) 3.190000
Shipping Weight (lbs) 0.300000